routes/web.php

@@ -33,6 +33,7 @@ Route::middleware('auth')->group(function () {
         'subjects' => SubjectController::class,
         'students' => StudentController::class,
         'teachers' => TeacherController::class,
+        'grades.lessons' => LessonController::class,
     ]);
 
     Route::middleware([AdminAction::class])->group(function () {