diff --git a/app/Filters/TimetableFilter.php b/app/Filters/TimetableFilter.php
index 4688fc6..e834c08 100644
--- a/app/Filters/TimetableFilter.php
+++ b/app/Filters/TimetableFilter.php
@@ -20,7 +20,7 @@ class TimetableFilter extends QueryFilter
 
     protected function subject($value)
     {
-        $this->builder = $this->builder->where('type_event', $value);
+        $this->builder = $this->builder->where('subject_id', $value);
     }
 
     protected function classroom($value)
diff --git a/app/Http/Controllers/TimetableController.php b/app/Http/Controllers/TimetableController.php
index 322c0f8..dcae219 100644
--- a/app/Http/Controllers/TimetableController.php
+++ b/app/Http/Controllers/TimetableController.php
@@ -5,10 +5,9 @@ namespace App\Http\Controllers;
 use App\Filters\TimetableFilter;
 use App\Http\Requests\TimetableRequest;
 use App\Models\SchoolClass;
-use App\Models\Subject;
-use App\Models\Teacher;
 use App\Models\Timetable;
 use Carbon\Carbon;
+use Illuminate\Database\QueryException;
 use Illuminate\Http\Request;
 
 class TimetableController extends Controller
@@ -22,17 +21,17 @@ class TimetableController extends Controller
         ]);
         $builder = Timetable::all()->sortBy('timeStart');
         $timetables = (new TimetableFilter($builder, $request))->apply()->values();
-        $answer = [];
+        $arrayTimetables = [];
         for ($i = 0; $i < 6; $i++) {
             $date = Carbon::parse($request->input('date'))
                 ->addDays($i)
                 ->format('Y-m-d');
-            array_push($answer, [$date => $timetables->where('date', $date)->values()]);
+            array_push($arrayTimetables, [$date => $timetables->where('date', $date)->values()]);
         }
-        return response()->json($answer, 200);
+        return response()->json($arrayTimetables, 200);
     }
 
-     //Получение расписания
+     //Получение урока
     public function show(Timetable $timetable)
     {
         return response()->json($timetable, 200);
@@ -42,10 +41,11 @@ class TimetableController extends Controller
     public function store(TimetableRequest $request)
     {
         foreach($request->input('timetables') as $timetable) {
-            SchoolClass::findOrFail($timetable['class_id']);
-            Teacher::findOrFail($timetable['teacher_id']);
-            Subject::findOrFail($timetable['subject_id']);
-            Timetable::create($timetable);
+            try {
+                Timetable::create($timetable);
+            }catch (QueryException $e) {
+                return response()->json(['message' => 'Not found class, teacher or subject'], 400);
+            }
         }
 
         return response()->json(['message' => 'Timetable was created'], 201);
@@ -62,10 +62,11 @@ class TimetableController extends Controller
             'time_start' => 'required|date_format:H:i',
             'time_end' => 'required|date_format:H:i|after:time_start',
         ]);
-        SchoolClass::findOrFail($request->input('class_id'));
-        Teacher::findOrFail($request->input('teacher_id'));
-        Subject::findOrFail($request->input('subject_id'));
-        $timetable->update($request->all());
+        try {
+            $timetable->update($request->all());
+        }catch (QueryException $e) {
+            return response()->json(['message' => 'Not found class, teacher or subject'], 400);
+        }
         return response()->json(['message' => 'Timetable was updated'], 200);
     }
 
@@ -75,4 +76,5 @@ class TimetableController extends Controller
         $timetable->delete();
         return response()->json('', 204);
     }
+
 }
diff --git a/app/Http/Requests/TimetableRequest.php b/app/Http/Requests/TimetableRequest.php
index 51481c8..8cd1c71 100644
--- a/app/Http/Requests/TimetableRequest.php
+++ b/app/Http/Requests/TimetableRequest.php
@@ -19,15 +19,7 @@ class TimetableRequest extends ApiFormRequest
             'timetables.*.subject_id' => 'required|integer|gt:0',
             'timetables.*.date' => 'required|date_format:Y/m/d|',
             'timetables.*.time_start' => 'required|date_format:H:i',
-            //'timetables.*.time_end' => 'required|date_format:H:i|after:time_start',
-            /*'week' => 'required|array',
-            'week.*.day' => 'required|array',
-            'week.*.day.*.class_id' => 'required|integer|gt:0',
-            'week.*.day.*.teacher_id' => 'required|integer|gt:0',
-            'week.*.day.*.subject_id' => 'required|integer|gt:0',
-            'week.*.day.*.date' => 'required|date_format:Y/m/d|',
-            'week.*.day.*.time_start' => 'required|date_format:H:i',
-            'week.*.day.*.time_end' => 'required|date_format:H:i|after:time_start',*/
+            'timetables.*.time_end' => 'required|date_format:H:i',
         ];
     }
 }
diff --git a/app/Models/AcademicPlan.php b/app/Models/AcademicPlan.php
new file mode 100644
index 0000000..694a318
--- /dev/null
+++ b/app/Models/AcademicPlan.php
@@ -0,0 +1,15 @@
+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Factories\HasFactory;
+use Illuminate\Database\Eloquent\Model;
+
+class AcademicPlan extends Model
+{
+    use HasFactory;
+
+    protected $primaryKey = ['subject_id', 'class_id'];
+
+    public $incrementing = false;
+}
diff --git a/app/Models/SchoolClass.php b/app/Models/SchoolClass.php
index 8aec500..8427937 100644
--- a/app/Models/SchoolClass.php
+++ b/app/Models/SchoolClass.php
@@ -19,4 +19,10 @@ class SchoolClass extends Model
     {
         return $this->hasMany(Student::class);
     }
+
+    public function subjects()
+    {
+        return $this->belongsToMany(Subject::class, 'academic_plans')->withPivot('hours_per_week', 'hours_per_year');
+    }
+
 }
diff --git a/app/Models/Subject.php b/app/Models/Subject.php
index 3adfcaf..6572e8e 100644
--- a/app/Models/Subject.php
+++ b/app/Models/Subject.php
@@ -17,4 +17,10 @@ class Subject extends Model
     {
         return $this->hasMany(BankTask::class);
     }
+
+    public function schoolClasses()
+    {
+        return $this->belongsToMany(SchoolClass::class, 'academic_plans')->withPivot('hours_per_week', 'hours_per_year');
+    }
+
 }
diff --git a/database/migrations/2020_12_08_082614_create_academic_plans_table.php b/database/migrations/2020_12_08_082614_create_academic_plans_table.php
new file mode 100644
index 0000000..424681b
--- /dev/null
+++ b/database/migrations/2020_12_08_082614_create_academic_plans_table.php
@@ -0,0 +1,43 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+class CreateAcademicPlansTable extends Migration
+{
+    /**
+     * Run the migrations.
+     *
+     * @return void
+     */
+    public function up()
+    {
+        Schema::create('academic_plans', function (Blueprint $table) {
+            $table->unsignedInteger('subject_id');
+            $table->unsignedInteger('class_id');
+            $table->unsignedInteger('hours_per_week');
+            $table->unsignedInteger('hours_per_year');
+            $table->timestamps();
+
+            $table->foreign('subject_id')
+                ->references('id')->on('subjects')
+                ->onDelete('cascade');
+            $table->foreign('class_id')
+                ->references('id')->on('school_classes')
+                ->onDelete('cascade');
+
+            $table->primary(['subject_id', 'class_id']);
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     *
+     * @return void
+     */
+    public function down()
+    {
+        Schema::dropIfExists('academic_plans');
+    }
+}