diff --git a/app/views/base/topnav.scala b/app/views/base/topnav.scala
index ad008801a0..9bf690413a 100644
--- a/app/views/base/topnav.scala
+++ b/app/views/base/topnav.scala
@@ -43,7 +43,7 @@ object topnav {
         ),
         a(href := routes.Study.allDefault(1))(trans.studyMenu()),
         ctx.noKid option a(href := routes.Coach.allDefault(1))(trans.coaches()),
-        canSeeClasMenu option a(href := routes.Clas.index)("Classes")
+        canSeeClasMenu option a(href := routes.Clas.index)(trans.clas.lichessClasses())
       )
     ),
     st.section(
diff --git a/app/views/clas/bits.scala b/app/views/clas/bits.scala
index 39f4058389..91d5af34c7 100644
--- a/app/views/clas/bits.scala
+++ b/app/views/clas/bits.scala
@@ -21,7 +21,9 @@ private object bits {
       if (isGranted(_.Teacher))
         main(cls := "page-menu")(
           st.nav(cls := "page-menu__menu subnav")(
-            a(cls := active.toOption.map(_.active("classes")), href := routes.Clas.index)("Lichess Classes"),
+            a(cls := active.toOption.map(_.active("classes")), href := routes.Clas.index)(
+              trans.clas.lichessClasses()
+            ),
             active.left.toOption.map { clas =>
               frag(
                 a(cls := "active", href := routes.Clas.show(clas.clas.id.value))(clas.clas.name),
@@ -36,7 +38,9 @@ private object bits {
                 }
               )
             } | {
-              a(cls := active.toOption.map(_.active("newClass")), href := routes.Clas.form)("New class")
+              a(cls := active.toOption.map(_.active("newClass")), href := routes.Clas.form)(
+                trans.clas.newClass()
+              )
             }
           ),
           div(cls := "page-menu__content box")(body)
@@ -44,13 +48,8 @@ private object bits {
       else main(cls := "page-small box")(body)
     )
 
-  def showArchived(archived: Clas.Recorded) =
-    div(
-      "Archived by ",
-      userIdLink(archived.by.value.some),
-      " ",
-      momentFromNowOnce(archived.at)
-    )
+  def showArchived(archived: Clas.Recorded)(implicit ctx: Context) =
+    div(trans.clas.closedByXAtY(userIdLink(archived.by.value.some), momentFromNowOnce(archived.at)))
 
   val sortNumberTh = th(attr("data-sort-method") := "number")
   val dataSort     = attr("data-sort")
diff --git a/app/views/clas/clas.scala b/app/views/clas/clas.scala
index d49c959271..ad6f919dce 100644
--- a/app/views/clas/clas.scala
+++ b/app/views/clas/clas.scala
@@ -40,27 +40,27 @@ object clas {
     }
 
   def teacherIndex(classes: List[Clas])(implicit ctx: Context) =
-    bits.layout("Lichess Classes", Right("classes"))(
+    bits.layout(trans.clas.lichessClasses.txt(), Right("classes"))(
       cls := "clas-index",
       div(cls := "box__top")(
         h1(trans.clas.lichessClasses()),
         a(
           href := routes.Clas.form,
           cls := "new button button-empty",
-          title := "New Class",
+          title := trans.clas.newClass.txt(),
           dataIcon := "O"
         )
       ),
       if (classes.isEmpty)
-        frag(hr, p(cls := "box__pad classes__empty")("No classes yet."))
+        frag(hr, p(cls := "box__pad classes__empty")(trans.clas.noClassesYet()))
       else
         renderClasses(classes)
     )
 
   def studentIndex(classes: List[Clas])(implicit ctx: Context) =
-    bits.layout("Lichess Classes", Right("classes"))(
+    bits.layout(trans.clas.lichessClasses.txt(), Right("classes"))(
       cls := "clas-index",
-      div(cls := "box__top")(h1("Lichess Classes")),
+      div(cls := "box__top")(h1(trans.clas.lichessClasses())),
       renderClasses(classes)
     )
 
@@ -80,16 +80,17 @@ object clas {
       }
     )
 
-  def teachers(clas: Clas) =
+  def teachers(clas: Clas)(implicit ctx: Context) =
     div(cls := "clas-teachers")(
-      "Teachers: ",
-      fragList(clas.teachers.toList.map(t => userIdLink(t.value.some)))
+      trans.clas.teachersX(
+        fragList(clas.teachers.toList.map(t => userIdLink(t.value.some)))
+      )
     )
 
   def create(form: Form[ClasData])(implicit ctx: Context) =
-    bits.layout("New class", Right("newClass"))(
+    bits.layout(trans.clas.newClass.txt(), Right("newClass"))(
       cls := "box-pad",
-      h1("New class"),
+      h1(trans.clas.newClass()),
       innerForm(form, none)
     )
 
@@ -102,9 +103,8 @@ object clas {
           action := routes.Clas.archive(c.id.value, true),
           cls := "clas-edit__archive"
         )(
-          form3.submit("Archive", icon = none)(
-            cls := "confirm button-red button-empty",
-            title := "Disband the class"
+          form3.submit(trans.clas.closeClass(), icon = none)(
+            cls := "confirm button-red button-empty"
           )
         )
       )
@@ -114,15 +114,15 @@ object clas {
     teacherDashboard.layout(c, students, "wall")(
       div(cls := "box-pad clas-wall__edit")(
         p(
-          strong("Send a message to all students."),
+          strong(trans.clas.sendAMessage()),
           br,
-          "A link to the class will be automatically added at the end of the message, so you don't need to include it yourself."
+          trans.clas.aLinkToTheClassWillBeAdded()
         ),
         postForm(cls := "form3", action := routes.Clas.notifyPost(c.id.value))(
           form3.globalError(form),
           form3.group(
             form("text"),
-            frag("Message")
+            frag(trans.message())
           )(form3.textarea(_)(rows := 3)),
           form3.actions(
             a(href := routes.Clas.wall(c.id.value))(trans.cancel()),
@@ -135,24 +135,22 @@ object clas {
   private def innerForm(form: Form[ClasData], clas: Option[Clas])(implicit ctx: Context) =
     postForm(cls := "form3", action := clas.fold(routes.Clas.create())(c => routes.Clas.update(c.id.value)))(
       form3.globalError(form),
-      form3.group(form("name"), frag("Class name"))(form3.input(_)(autofocus)),
+      form3.group(form("name"), trans.clas.className())(form3.input(_)(autofocus)),
       form3.group(
         form("desc"),
-        frag("Class description"),
-        help = frag("Visible by both teachers and students of the class").some
+        frag(trans.clas.classDescription()),
+        help = trans.clas.visibleByBothStudentsAndTeachers().some
       )(form3.textarea(_)(rows := 5)),
       clas match {
         case None => form3.hidden(form("teachers"), ctx.userId)
         case Some(_) =>
           form3.group(
             form("teachers"),
-            frag("Teachers of the class"),
+            trans.clas.teachersOfTheClass(),
             help = frag(
-              "Add Lichess usernames to invite them as teachers. One per line.",
+              trans.clas.addLichessUsernames(),
               br,
-              "All teachers must be ",
-              a(href := routes.Clas.verifyTeacher)("vetted by Lichess"),
-              " before being invited."
+              trans.clas.theyMustFirstApply()
             ).some
           )(form3.textarea(_)(rows := 4))
       },
diff --git a/app/views/clas/student.scala b/app/views/clas/student.scala
index bef5431c7b..90848faf8d 100644
--- a/app/views/clas/student.scala
+++ b/app/views/clas/student.scala
@@ -25,10 +25,8 @@ object student {
         ctx.flash("password").map { password =>
           flashMessage(cls := "student-show__password")(
             div(
-              p(
-                "Make sure to copy or write down the password now. You won’t be able to see it again!"
-              ),
-              pre(s"""Password: $password""")
+              p(trans.clas.makeSureToCopy()),
+              pre(trans.clas.passwordX(password))
             )
           )
         },
@@ -36,36 +34,33 @@ object student {
           div(cls := "student-show__archived archived")(
             bits.showArchived(archived),
             postForm(action := routes.Clas.studentArchive(clas.id.value, s.user.username, false))(
-              form3.submit("Restore", icon = none)(
-                cls := "confirm button-empty",
-                title := "Get the student back into the class"
-              )
+              form3.submit(trans.clas.inviteTheStudentBack(), icon = none)(cls := "confirm button-empty")
             )
           )
         },
         s.student.notes.nonEmpty option div(cls := "student-show__notes")(richText(s.student.notes)),
         s.student.managed option div(cls := "student-show__managed")(
-          p("This student account is managed"),
+          p(trans.clas.thisStudentAccountIsManaged()),
           div(cls := "student-show__managed__actions")(
             postForm(action := routes.Clas.studentSetKid(clas.id.value, s.user.username, !s.user.kid))(
-              form3.submit(if (s.user.kid) "Disable kid mode" else "Enable kid mode", icon = none)(
+              form3.submit(if (s.user.kid) trans.disableKidMode() else trans.enableKidMode(), icon = none)(
                 s.student.isArchived option disabled,
                 cls := List("confirm button button-empty" -> true, "disabled" -> s.student.isArchived),
-                title := "Kid mode prevents the student from communicating with Lichess players"
+                title := trans.kidModeExplanation.txt()
               )
             ),
             postForm(action := routes.Clas.studentResetPassword(clas.id.value, s.user.username))(
-              form3.submit("Reset password", icon = none)(
+              form3.submit(trans.clas.resetPassword(), icon = none)(
                 s.student.isArchived option disabled,
                 cls := List("confirm button button-empty" -> true, "disabled" -> s.student.isArchived),
-                title := "Generate a new password for the student"
+                title := trans.clas.generateANewPassword.txt()
               )
             ),
             a(
               href := routes.Clas.studentRelease(clas.id.value, s.user.username),
               cls := "button button-empty",
-              title := "Upgrade from managed to autonomous"
-            )("Release")
+              title := trans.clas.upgradeFromManaged.txt()
+            )(trans.clas.release())
           )
         ),
         views.html.activity(s.user, activities)
@@ -82,11 +77,10 @@ object student {
       ),
       div(cls := "student-show__top__meta")(
         p(
-          "Invited to ",
-          a(href := routes.Clas.show(clas.id.value))(clas.name),
-          " by ",
-          userIdLink(s.student.created.by.value.some, withOnline = false),
-          " ",
+          trans.clas.invitedToXByY(
+            a(href := routes.Clas.show(clas.id.value))(clas.name),
+            userIdLink(s.student.created.by.value.some, withOnline = false)
+          ),
           momentFromNowOnce(s.student.created.at)
         ),
         div(
@@ -97,11 +91,10 @@ object student {
           a(
             href := routes.Clas.studentEdit(clas.id.value, s.user.username),
             cls := "button button-empty"
-          )("Edit"),
+          )(trans.edit()),
           a(
             href := routes.User.show(s.user.username),
-            cls := "button button-empty",
-            title := "View full Lichess profile"
+            cls := "button button-empty"
           )(trans.profile())
         )
       )
@@ -110,8 +103,8 @@ object student {
   private def realNameField(form: Form[_], fieldName: String = "realName")(implicit ctx: Context) =
     form3.group(
       form(fieldName),
-      frag("Real name"),
-      help = frag("Private. Will never be shown to anyone else. Helps you remember who that student is.").some
+      trans.clas.realName(),
+      help = trans.clas.privateWillNeverBeShown().some
     )(form3.input(_))
 
   def form(
@@ -121,45 +114,41 @@ object student {
       create: Form[_],
       created: Option[lila.clas.Student.WithPassword] = none
   )(implicit ctx: Context) =
-    bits.layout("Add student", Left(c withStudents students))(
+    bits.layout(trans.clas.addStudent.txt(), Left(c withStudents students))(
       cls := "box-pad student-add",
-      h1("Add student"),
+      h1(trans.clas.addStudent()),
       p(
-        "To ",
         a(href := routes.Clas.show(c.id.value))(c.name)
       ),
       created map {
         case Student.WithPassword(student, password) =>
           flashMessage(cls := "student-add__created")(
             strong(
-              "Lichess profile ",
-              userIdLink(student.userId.some, withOnline = false),
-              " created for ",
-              student.realName,
-              "."
-            ),
-            p(
-              "Make sure to copy or write down the password now. You won’t be able to see it again!"
-            ),
-            pre(s"""Student:  ${student.realName}
-Username: ${usernameOrId(student.userId)}
-Password: ${password.value}""")
+              trans.clas.lichessProfileXCreatedForY(
+                userIdLink(student.userId.some, withOnline = false),
+                student.realName
+              ),
+              p(trans.clas.makeSureToCopy()),
+              pre(
+                trans.clas.studentCredentials(student.realName, usernameOrId(student.userId), password.value)
+              )
+            )
           )
       },
       standardFlash(),
       div(cls := "student-add__choice")(
         div(cls := "info")(
-          h2("Invite a Lichess account"),
-          p("If the student already has a Lichess account, you can invite them to the class."),
-          p("They will receive a message on Lichess with a link to join the class."),
+          h2(trans.clas.inviteALichessAccount()),
+          p(trans.clas.inviteDesc1()),
+          p(trans.clas.inviteDesc2()),
           p(
-            strong("Important: only invite students you know, and who actively want to join the class."),
+            strong(trans.clas.inviteDesc3()),
             br,
-            "Never send unsolicited invites to arbitrary players."
+            trans.clas.inviteDesc4()
           )
         ),
         postForm(cls := "form3", action := routes.Clas.studentInvite(c.id.value))(
-          form3.group(invite("username"), frag("Lichess username"))(
+          form3.group(invite("username"), trans.clas.lichessUsername())(
             form3.input(_, klass = "user-autocomplete")(created.isEmpty option autofocus)(dataTag := "span")
           ),
           realNameField(invite),
@@ -169,24 +158,23 @@ Password: ${password.value}""")
       div(cls := "student-add__or")("~ or ~"),
       div(cls := "student-add__choice")(
         div(cls := "info")(
-          h2("Create a new Lichess account"),
-          p("If the student doesn't have a Lichess account yet, you can create one for them here."),
+          h2(trans.clas.createANewLichessAccount()),
+          p(trans.clas.createDesc1()),
           p(
-            "No email address is required. A password will be generated, ",
-            "and you will have to transmit it to the student, so they can log in."
+            trans.clas.createDesc2()
           ),
           p(
-            strong("Important: a student must not have multiple accounts."),
+            strong(trans.clas.createDesc3()),
             br,
-            "If they already have one, use the invite form instead."
+            trans.clas.createDesc4()
           )
         ),
         postForm(cls := "form3", action := routes.Clas.studentCreate(c.id.value))(
           form3.group(
             create("create-username"),
-            frag("Lichess username"),
+            trans.clas.lichessUsername(),
             help = a(cls := "name-regen", href := s"${routes.Clas.studentForm(c.id.value)}?gen=1")(
-              "Generate a new username"
+              trans.clas.generateANewUsername()
             ).some
           )(
             form3.input(_)(created.isDefined option autofocus)
@@ -206,7 +194,7 @@ Password: ${password.value}""")
         postForm(cls := "form3", action := routes.Clas.studentUpdate(clas.id.value, s.user.username))(
           form3.globalError(form),
           realNameField(form),
-          form3.group(form("notes"), raw("Notes"), help = frag("Only visible to the class teachers").some)(
+          form3.group(form("notes"), trans.notes(), help = trans.clas.onlyVisibleToTeachers().some)(
             form3.textarea(_)(autofocus, rows := 15)
           ),
           form3.actions(
@@ -220,9 +208,8 @@ Password: ${password.value}""")
             action := routes.Clas.studentArchive(clas.id.value, s.user.username, true),
             cls := "student-show__archive"
           )(
-            form3.submit("Archive", icon = none)(
-              cls := "confirm button-red button-empty",
-              title := "Remove the student from the class"
+            form3.submit(trans.clas.removeStudent(), icon = none)(
+              cls := "confirm button-red button-empty"
             )
           )
         )
@@ -236,20 +223,18 @@ Password: ${password.value}""")
       cls := "student-show student-edit",
       top(clas, s),
       div(cls := "box__pad")(
-        h2("Release the account so the student can manage it in autonomy."),
+        h2(trans.clas.releaseTheAccount()),
         p(
-          "A released account cannot be made managed again. The student will be able to toggle kid mode and reset paswword themselves.",
+          trans.clas.releaseDesc1(),
           br,
-          "The student will remain in the class after their account is released."
+          trans.clas.releaseDesc2()
         ),
         postForm(cls := "form3", action := routes.Clas.studentReleasePost(clas.id.value, s.user.username))(
           form3.globalError(form),
           form3.group(
             form("email"),
             trans.email(),
-            help = frag(
-              "Real, unique email address of the student. We will send a confirmation email to it, with a link to release the account."
-            ).some
+            help = trans.clas.realUniqueEmail().some
           )(form3.input(_, typ = "email")(autofocus, required)),
           form3.actions(
             a(href := routes.Clas.studentShow(clas.id.value, s.user.username))(trans.cancel()),
diff --git a/app/views/clas/studentDashboard.scala b/app/views/clas/studentDashboard.scala
index eb6c3240c6..bbc6afc484 100644
--- a/app/views/clas/studentDashboard.scala
+++ b/app/views/clas/studentDashboard.scala
@@ -31,7 +31,7 @@ object studentDashboard {
       table(cls := "slist slist-pad teachers")(
         thead(
           tr(
-            th("Teachers"),
+            th(trans.clas.nbTeachers(teachers.size)),
             th,
             th
           )
@@ -68,10 +68,10 @@ object studentDashboard {
     table(cls := "slist slist-pad sortable")(
       thead(
         tr(
-          th(attr("data-sort-default") := "1")("Students"),
-          sortNumberTh("Rating"),
-          sortNumberTh("Games"),
-          sortNumberTh("Puzzles"),
+          th(attr("data-sort-default") := "1")(trans.clas.nbStudents(students.size)),
+          sortNumberTh(trans.rating()),
+          sortNumberTh(trans.games()),
+          sortNumberTh(trans.puzzles()),
           th
         )
       ),
diff --git a/app/views/clas/teacherDashboard.scala b/app/views/clas/teacherDashboard.scala
index 472805d995..76044157c6 100644
--- a/app/views/clas/teacherDashboard.scala
+++ b/app/views/clas/teacherDashboard.scala
@@ -27,11 +27,11 @@ object teacherDashboard {
           a(
             cls := active.active("progress"),
             href := routes.Clas.progress(c.id.value, PerfType.Blitz.key, 7)
-          )(
-            "Progress"
-          ),
-          a(cls := active.active("edit"), href := routes.Clas.edit(c.id.value))("Edit"),
-          a(cls := active.active("archived"), href := routes.Clas.archived(c.id.value))("Archived")
+          )(trans.clas.progress()),
+          a(cls := active.active("edit"), href := routes.Clas.edit(c.id.value))(trans.edit()),
+          a(cls := active.active("archived"), href := routes.Clas.archived(c.id.value))(
+            trans.clas.removedStudents()
+          )
         )
       ),
       standardFlash(),
@@ -39,10 +39,7 @@ object teacherDashboard {
         div(cls := "clas-show__archived archived")(
           bits.showArchived(archived),
           postForm(action := routes.Clas.archive(c.id.value, false))(
-            form3.submit("Restore", icon = none)(
-              cls := "confirm button-empty",
-              title := "Revive the class"
-            )
+            form3.submit(trans.clas.reopen(), icon = none)(cls := "confirm button-empty")
           )
         )
       },
@@ -62,11 +59,11 @@ object teacherDashboard {
             href := routes.Clas.studentForm(c.id.value),
             cls := "button button-clas text",
             dataIcon := "O"
-          )("Add student")
+          )(trans.clas.addStudent())
         )
       ),
       if (students.isEmpty)
-        p(cls := "box__pad students__empty")("No students in the class, yet.")
+        p(cls := "box__pad students__empty")(trans.clas.noStudents())
       else
         studentList(c, students)
     )
@@ -78,7 +75,7 @@ object teacherDashboard {
     layout(c, students.filter(_.student.isActive), "archived") {
       val archived = students.filter(_.student.isArchived)
       if (archived.isEmpty)
-        p(cls := "box__pad students__empty")("No archived students.")
+        p(cls := "box__pad students__empty")(trans.clas.noStudents())
       else
         studentList(c, archived)
     }
@@ -91,7 +88,7 @@ object teacherDashboard {
     layout(c, students, "progress")(
       div(cls := "progress")(
         div(cls := "progress-perf")(
-          label("Variant"),
+          label(trans.variant()),
           div(cls := "progress-choices")(
             List(
               PerfType.Bullet,
@@ -109,7 +106,7 @@ object teacherDashboard {
           )
         ),
         div(cls := "progress-days")(
-          label("Over days"),
+          label(trans.clas.overDays()),
           div(cls := "progress-choices")(
             List(1, 2, 3, 7, 10, 14, 21, 30, 60, 90).map { days =>
               a(
@@ -125,30 +122,32 @@ object teacherDashboard {
           thead(
             tr(
               th(attr("data-sort-default") := "1")(
-                s"${progress.perfType.name} over last ${progress.days} days"
-              ),
-              sortNumberTh("Rating"),
-              sortNumberTh("Progress"),
-              sortNumberTh(if (progress.isPuzzle) "Puzzles" else "Games"),
-              if (progress.isPuzzle) sortNumberTh("Winrate")
-              else sortNumberTh("Time playing")
+                trans.clas.variantXOverLastY(progress.perfType.name, trans.nbDays.txt(progress.days)),
+                sortNumberTh(trans.rating()),
+                sortNumberTh(trans.clas.progress()),
+                sortNumberTh(if (progress.isPuzzle) trans.puzzles() else trans.games()),
+                if (progress.isPuzzle) sortNumberTh(trans.clas.winrate())
+                else sortNumberTh(trans.clas.timePlaying())
+              )
+            ),
+            tbody(
+              students.sortBy(_.user.username).map {
+                case s @ Student.WithUser(_, user) =>
+                  val prog = progress(user)
+                  tr(
+                    studentTd(c, s),
+                    td(dataSort := user.perfs(progress.perfType).intRating, cls := "rating")(
+                      user.perfs(progress.perfType).showRatingProvisional
+                    ),
+                    td(dataSort := prog.ratingProgress)(
+                      ratingProgress(prog.ratingProgress) | trans.clas.na.txt()
+                    ),
+                    td(prog.nb),
+                    if (progress.isPuzzle) td(dataSort := prog.winRate)(prog.winRate, "%")
+                    else td(dataSort := prog.millis)(showPeriod(prog.period))
+                  )
+              }
             )
-          ),
-          tbody(
-            students.sortBy(_.user.username).map {
-              case s @ Student.WithUser(_, user) =>
-                val prog = progress(user)
-                tr(
-                  studentTd(c, s),
-                  td(dataSort := user.perfs(progress.perfType).intRating, cls := "rating")(
-                    user.perfs(progress.perfType).showRatingProvisional
-                  ),
-                  td(dataSort := prog.ratingProgress)(ratingProgress(prog.ratingProgress) | "N/A"),
-                  td(prog.nb),
-                  if (progress.isPuzzle) td(dataSort := prog.winRate)(prog.winRate, "%")
-                  else td(dataSort := prog.millis)(showPeriod(prog.period))
-                )
-            }
           )
         )
       )
@@ -159,12 +158,12 @@ object teacherDashboard {
       table(cls := "slist slist-pad sortable")(
         thead(
           tr(
-            th(attr("data-sort-default") := "1")("Student"),
-            sortNumberTh("Rating"),
-            sortNumberTh("Games"),
-            sortNumberTh("Puzzles"),
-            sortNumberTh("Active"),
-            th(iconTag("5")(title := "Managed"))
+            th(attr("data-sort-default") := "1")(trans.clas.nbStudents(students.size)),
+            sortNumberTh(trans.rating()),
+            sortNumberTh(trans.games()),
+            sortNumberTh(trans.puzzles()),
+            sortNumberTh(trans.clas.lastActiveDate()),
+            th(iconTag("5")(title := trans.clas.managed.txt()))
           )
         ),
         tbody(
@@ -178,7 +177,7 @@ object teacherDashboard {
                 td(user.count.game.localize),
                 td(user.perfs.puzzle.nb),
                 td(dataSort := user.seenAt.map(_.getMillis.toString))(user.seenAt.map(momentFromNowOnce)),
-                td(student.managed option iconTag("5")(title := "Managed"))
+                td(student.managed option iconTag("5")(title := trans.clas.managed.txt()))
               )
           }
         )
diff --git a/app/views/clas/wall.scala b/app/views/clas/wall.scala
index 12be1f6f23..3764ae22e6 100644
--- a/app/views/clas/wall.scala
+++ b/app/views/clas/wall.scala
@@ -18,14 +18,14 @@ object wall {
     teacherDashboard.layout(c, students.filter(_.student.isActive), "wall")(
       div(cls := "clas-wall__actions")(
         a(dataIcon := "m", href := routes.Clas.wallEdit(c.id.value), cls := "button button-clas text")(
-          "Edit news"
+          trans.clas.editNews()
         ),
         a(dataIcon := "e", href := routes.Clas.notifyStudents(c.id.value), cls := "button button-clas text")(
-          "Notify all students"
+          trans.clas.notifyAllStudents()
         )
       ),
       if (c.wall.isEmpty)
-        div(cls := "box__pad clas-wall clas-wall--empty")("Nothing here, yet.")
+        div(cls := "box__pad clas-wall clas-wall--empty")(trans.clas.nothingHere())
       else
         div(cls := "box__pad clas-wall")(html)
     )
@@ -38,15 +38,16 @@ object wall {
     teacherDashboard.layout(c, students, "wall")(
       div(cls := "box-pad clas-wall__edit")(
         p(
-          strong("All class news in a single field."),
+          strong(trans.clas.newsEdit1()),
           ul(
-            li("Add the recent news at the top. Don't delete previous news."),
-            li("Separate news with --- it will display a horizontal line."),
+            li(trans.clas.newsEdit2()),
+            li(trans.clas.newsEdit3()),
             li(
-              a(href := "https://guides.github.com/features/mastering-markdown/", target := "_blank")(
-                "Markdown"
-              ),
-              " is available for more advanced syntax."
+              trans.clas.markdownAvailable(
+                a(href := "https://guides.github.com/features/mastering-markdown/", target := "_blank")(
+                  "Markdown"
+                )
+              )
             )
           )
         ),
@@ -54,7 +55,7 @@ object wall {
           form3.globalError(form),
           form3.group(
             form("wall"),
-            frag("Class news")
+            trans.clas.news()
           )(form3.textarea(_)(rows := 20)),
           form3.actions(
             a(href := routes.Clas.wall(c.id.value))(trans.cancel()),
diff --git a/modules/i18n/src/main/I18nKeys.scala b/modules/i18n/src/main/I18nKeys.scala
index 0fcddd5278..b96497ccda 100644
--- a/modules/i18n/src/main/I18nKeys.scala
+++ b/modules/i18n/src/main/I18nKeys.scala
@@ -756,6 +756,7 @@ val `agreementNice` = new Translated("agreementNice", Site)
 val `agreementAccount` = new Translated("agreementAccount", Site)
 val `agreementPolicy` = new Translated("agreementPolicy", Site)
 val `searchOrStartNewDiscussion` = new Translated("searchOrStartNewDiscussion", Site)
+val `edit` = new Translated("edit", Site)
 val `opponentLeftCounter` = new Translated("opponentLeftCounter", Site)
 val `mateInXHalfMoves` = new Translated("mateInXHalfMoves", Site)
 val `nextCaptureOrPawnMoveInXHalfMoves` = new Translated("nextCaptureOrPawnMoveInXHalfMoves", Site)
@@ -1167,6 +1168,73 @@ val `trackStudentProgress` = new Translated("trackStudentProgress", Clas)
 val `messageAllStudents` = new Translated("messageAllStudents", Clas)
 val `freeForAllForever` = new Translated("freeForAllForever", Clas)
 val `applyToBeLichessTeacher` = new Translated("applyToBeLichessTeacher", Clas)
+val `noClassesYet` = new Translated("noClassesYet", Clas)
+val `teachersX` = new Translated("teachersX", Clas)
+val `newClass` = new Translated("newClass", Clas)
+val `closeClass` = new Translated("closeClass", Clas)
+val `closedByXAtY` = new Translated("closedByXAtY", Clas)
+val `reopen` = new Translated("reopen", Clas)
+val `removeStudent` = new Translated("removeStudent", Clas)
+val `removedStudents` = new Translated("removedStudents", Clas)
+val `inviteTheStudentBack` = new Translated("inviteTheStudentBack", Clas)
+val `sendAMessage` = new Translated("sendAMessage", Clas)
+val `aLinkToTheClassWillBeAdded` = new Translated("aLinkToTheClassWillBeAdded", Clas)
+val `className` = new Translated("className", Clas)
+val `classDescription` = new Translated("classDescription", Clas)
+val `visibleByBothStudentsAndTeachers` = new Translated("visibleByBothStudentsAndTeachers", Clas)
+val `teachersOfTheClass` = new Translated("teachersOfTheClass", Clas)
+val `addLichessUsernames` = new Translated("addLichessUsernames", Clas)
+val `theyMustFirstApply` = new Translated("theyMustFirstApply", Clas)
+val `resetPassword` = new Translated("resetPassword", Clas)
+val `makeSureToCopy` = new Translated("makeSureToCopy", Clas)
+val `passwordX` = new Translated("passwordX", Clas)
+val `generateANewPassword` = new Translated("generateANewPassword", Clas)
+val `invitedToXByY` = new Translated("invitedToXByY", Clas)
+val `realName` = new Translated("realName", Clas)
+val `privateWillNeverBeShown` = new Translated("privateWillNeverBeShown", Clas)
+val `addStudent` = new Translated("addStudent", Clas)
+val `lichessProfileXCreatedForY` = new Translated("lichessProfileXCreatedForY", Clas)
+val `studentCredentials` = new Translated("studentCredentials", Clas)
+val `inviteALichessAccount` = new Translated("inviteALichessAccount", Clas)
+val `inviteDesc1` = new Translated("inviteDesc1", Clas)
+val `inviteDesc2` = new Translated("inviteDesc2", Clas)
+val `inviteDesc3` = new Translated("inviteDesc3", Clas)
+val `inviteDesc4` = new Translated("inviteDesc4", Clas)
+val `createANewLichessAccount` = new Translated("createANewLichessAccount", Clas)
+val `createDesc1` = new Translated("createDesc1", Clas)
+val `createDesc2` = new Translated("createDesc2", Clas)
+val `createDesc3` = new Translated("createDesc3", Clas)
+val `createDesc4` = new Translated("createDesc4", Clas)
+val `lichessUsername` = new Translated("lichessUsername", Clas)
+val `generateANewUsername` = new Translated("generateANewUsername", Clas)
+val `onlyVisibleToTeachers` = new Translated("onlyVisibleToTeachers", Clas)
+val `lastActiveDate` = new Translated("lastActiveDate", Clas)
+val `managed` = new Translated("managed", Clas)
+val `thisStudentAccountIsManaged` = new Translated("thisStudentAccountIsManaged", Clas)
+val `upgradeFromManaged` = new Translated("upgradeFromManaged", Clas)
+val `release` = new Translated("release", Clas)
+val `releaseTheAccount` = new Translated("releaseTheAccount", Clas)
+val `releaseDesc1` = new Translated("releaseDesc1", Clas)
+val `releaseDesc2` = new Translated("releaseDesc2", Clas)
+val `realUniqueEmail` = new Translated("realUniqueEmail", Clas)
+val `teachers` = new Translated("teachers", Clas)
+val `progress` = new Translated("progress", Clas)
+val `noStudents` = new Translated("noStudents", Clas)
+val `overDays` = new Translated("overDays", Clas)
+val `timePlaying` = new Translated("timePlaying", Clas)
+val `variantXOverLastY` = new Translated("variantXOverLastY", Clas)
+val `winrate` = new Translated("winrate", Clas)
+val `na` = new Translated("na", Clas)
+val `news` = new Translated("news", Clas)
+val `editNews` = new Translated("editNews", Clas)
+val `notifyAllStudents` = new Translated("notifyAllStudents", Clas)
+val `nothingHere` = new Translated("nothingHere", Clas)
+val `newsEdit1` = new Translated("newsEdit1", Clas)
+val `newsEdit2` = new Translated("newsEdit2", Clas)
+val `newsEdit3` = new Translated("newsEdit3", Clas)
+val `markdownAvailable` = new Translated("markdownAvailable", Clas)
+val `nbTeachers` = new Translated("nbTeachers", Clas)
+val `nbStudents` = new Translated("nbStudents", Clas)
 }
 
 }
diff --git a/translation/source/class.xml b/translation/source/class.xml
index b6ab437541..88c45497a0 100644
--- a/translation/source/class.xml
+++ b/translation/source/class.xml
@@ -8,4 +8,81 @@
   <string name="messageAllStudents">Message all students about new class material</string>
   <string name="freeForAllForever">100% free for all, forever, with no ads or trackers</string>
   <string name="applyToBeLichessTeacher">Apply to be a Lichess Teacher</string>
+  <string name="noClassesYet">No classes yet.</string>
+  <string name="teachersX">Teachers: %s</string>
+  <string name="newClass">New class</string>
+  <string name="closeClass">Close class</string>
+  <string name="closedByXAtY">Closed by %1$s %2$s</string>
+  <string name="reopen">Reopen</string>
+  <string name="removeStudent">Remove student</string>
+  <string name="removedStudents">Removed</string>
+  <string name="inviteTheStudentBack">Invite the student back</string>
+  <string name="sendAMessage">Send a message to all students.</string>
+  <string name="aLinkToTheClassWillBeAdded">A link to the class will be automatically added at the end of the message, so you don't need to include it yourself.</string>
+  <string name="className">Class name</string>
+  <string name="classDescription">Class description</string>
+  <string name="visibleByBothStudentsAndTeachers">Visible by both teachers and students of the class</string>
+  <string name="teachersOfTheClass">Teachers of the class</string>
+  <string name="addLichessUsernames">Add Lichess usernames to invite them as teachers. One per line.</string>
+  <string name="theyMustFirstApply">They must first apply to be Lichess Teachers.</string>
+  <string name="resetPassword">Reset password</string>
+  <string name="makeSureToCopy">Make sure to copy or write down the password now. You won’t be able to see it again!</string>
+  <string name="passwordX">Password: %s</string>
+  <string name="generateANewPassword">Generate a new password for the student</string>
+  <string name="invitedToXByY">Invited to %1$s by %2$s</string>
+  <string name="realName">Real name</string>
+  <string name="privateWillNeverBeShown">Private. Will never be shown outside the class. Helps remember who the student is.</string>
+  <string name="addStudent">Add student</string>
+  <string name="lichessProfileXCreatedForY">Lichess profile %1$s created for %2$s.</string>
+  <string name="studentCredentials">
+Student:  %1$s
+Username: %2$s
+Password: %2$s
+</string>
+  <string name="inviteALichessAccount">Invite a Lichess account</string>
+  <string name="inviteDesc1">If the student already has a Lichess account, you can invite them to the class.</string>
+  <string name="inviteDesc2">They will receive a message on Lichess with a link to join the class.</string>
+  <string name="inviteDesc3">Important: only invite students you know, and who actively want to join the class.</string>
+  <string name="inviteDesc4">Never send unsolicited invites to arbitrary players.</string>
+  <string name="createANewLichessAccount">Create a new Lichess account</string>
+  <string name="createDesc1">If the student doesn't have a Lichess account yet, you can create one for them here.</string>
+  <string name="createDesc2">No email address is required. A password will be generated, and you will have to transmit it to the student, so they can log in.</string>
+  <string name="createDesc3">Important: a student must not have multiple accounts.</string>
+  <string name="createDesc4">If they already have one, use the invite form instead.</string>
+  <string name="lichessUsername">Lichess username</string>
+  <string name="generateANewUsername">Generate a new username</string>
+  <string name="onlyVisibleToTeachers">Only visible to the class teachers</string>
+  <string name="lastActiveDate">Active</string>
+  <string name="managed">Managed</string>
+  <string name="thisStudentAccountIsManaged">This student account is managed</string>
+  <string name="upgradeFromManaged">Upgrade from managed to autonomous</string>
+  <string name="release">Release</string>
+  <string name="releaseTheAccount">Release the account so the student can manage it in autonomy.</string>
+  <string name="releaseDesc1">A released account cannot be made managed again. The student will be able to toggle kid mode and reset paswword themselves.</string>
+  <string name="releaseDesc2">The student will remain in the class after their account is released.</string>
+  <string name="realUniqueEmail">Real, unique email address of the student. We will send a confirmation email to it, with a link to release the account.</string>
+  <string name="teachers">Teachers</string>
+  <plurals name="nbTeachers">
+    <item quantity="one">Teacher</item>
+    <item quantity="other">%s teachers</item>
+  </plurals>
+  <plurals name="nbStudents">
+    <item quantity="one">Student</item>
+    <item quantity="other">%s students</item>
+  </plurals>
+  <string name="progress">Progress</string>
+  <string name="noStudents">No students in the class, yet.</string>
+  <string name="overDays">"Over days"</string>
+  <string name="timePlaying">Time playing</string>
+  <string name="variantXOverLastY">%1$s over last %2$s</string>
+  <string name="winrate">Winrate</string>
+  <string name="na">N/A</string>
+  <string name="news">Class news</string>
+  <string name="editNews">Edit news</string>
+  <string name="notifyAllStudents">Notify all students</string>
+  <string name="nothingHere">Nothing here, yet.</string>
+  <string name="newsEdit1">All class news in a single field.</string>
+  <string name="newsEdit2">Add the recent news at the top. Don't delete previous news.</string>
+  <string name="newsEdit3">Separate news with --- it will display a horizontal line.</string>
+  <string name="markdownAvailable">%s is available for more advanced syntax.</string>
 </resources>
diff --git a/translation/source/site.xml b/translation/source/site.xml
index 01be9fc1b3..767e2f6a5b 100644
--- a/translation/source/site.xml
+++ b/translation/source/site.xml
@@ -901,4 +901,5 @@ computer analysis, game chat and shareable URL.</string>
   <string name="agreementAccount">I agree that I will not create multiple accounts.</string>
   <string name="agreementPolicy">I agree that I will follow all Lichess policies.</string>
   <string name="searchOrStartNewDiscussion">Search or start new discussion</string>
+  <string name="edit">Edit</string>
 </resources>