diff --git a/django_school/classroom/mixins.py b/django_school/classroom/mixins.py
new file mode 100644
index 00000000..8c6cb57a
--- /dev/null
+++ b/django_school/classroom/mixins.py
@@ -0,0 +1,16 @@
+"""
+    Mixins for class-based views,
+    that check user auth. and role
+"""
+
+from django.contrib.auth.mixins import UserPassesTestMixin
+
+
+class StudentRequiredMixin(UserPassesTestMixin):
+    def test_func(self):
+        return self.request.user.is_authenticated and self.request.user.is_student
+
+
+class TeacherRequiredMixin(UserPassesTestMixin):
+    def test_func(self):
+        return self.request.user.is_authenticated and self.request.user.is_teacher
diff --git a/django_school/classroom/views/students.py b/django_school/classroom/views/students.py
index 19e5719c..11ecf628 100644
--- a/django_school/classroom/views/students.py
+++ b/django_school/classroom/views/students.py
@@ -11,6 +11,7 @@
 from ..decorators import student_required
 from ..forms import StudentInterestsForm, StudentSignUpForm, TakeQuizForm
 from ..models import Quiz, Student, TakenQuiz, User
+from ..mixins import StudentRequiredMixin
 
 
 class StudentSignUpView(CreateView):
@@ -28,8 +29,7 @@ def form_valid(self, form):
         return redirect('students:quiz_list')
 
 
-@method_decorator([login_required, student_required], name='dispatch')
-class StudentInterestsView(UpdateView):
+class StudentInterestsView(StudentRequiredMixin, UpdateView):
     model = Student
     form_class = StudentInterestsForm
     template_name = 'classroom/students/interests_form.html'
@@ -43,8 +43,7 @@ def form_valid(self, form):
         return super().form_valid(form)
 
 
-@method_decorator([login_required, student_required], name='dispatch')
-class QuizListView(ListView):
+class QuizListView(StudentRequiredMixin, ListView):
     model = Quiz
     ordering = ('name', )
     context_object_name = 'quizzes'
@@ -61,8 +60,7 @@ def get_queryset(self):
         return queryset
 
 
-@method_decorator([login_required, student_required], name='dispatch')
-class TakenQuizListView(ListView):
+class TakenQuizListView(StudentRequiredMixin, ListView):
     model = TakenQuiz
     context_object_name = 'taken_quizzes'
     template_name = 'classroom/students/taken_quiz_list.html'
diff --git a/django_school/classroom/views/teachers.py b/django_school/classroom/views/teachers.py
index 9237f2f5..25e59acb 100644
--- a/django_school/classroom/views/teachers.py
+++ b/django_school/classroom/views/teachers.py
@@ -13,6 +13,7 @@
 from ..decorators import teacher_required
 from ..forms import BaseAnswerInlineFormSet, QuestionForm, TeacherSignUpForm
 from ..models import Answer, Question, Quiz, User
+from ..mixins import TeacherRequiredMixin
 
 
 class TeacherSignUpView(CreateView):
@@ -30,8 +31,7 @@ def form_valid(self, form):
         return redirect('teachers:quiz_change_list')
 
 
-@method_decorator([login_required, teacher_required], name='dispatch')
-class QuizListView(ListView):
+class QuizListView(TeacherRequiredMixin,ListView):
     model = Quiz
     ordering = ('name', )
     context_object_name = 'quizzes'
@@ -45,8 +45,7 @@ def get_queryset(self):
         return queryset
 
 
-@method_decorator([login_required, teacher_required], name='dispatch')
-class QuizCreateView(CreateView):
+class QuizCreateView(TeacherRequiredMixin, CreateView):
     model = Quiz
     fields = ('name', 'subject', )
     template_name = 'classroom/teachers/quiz_add_form.html'
@@ -59,8 +58,7 @@ def form_valid(self, form):
         return redirect('teachers:quiz_change', quiz.pk)
 
 
-@method_decorator([login_required, teacher_required], name='dispatch')
-class QuizUpdateView(UpdateView):
+class QuizUpdateView(TeacherRequiredMixin, UpdateView):
     model = Quiz
     fields = ('name', 'subject', )
     context_object_name = 'quiz'
@@ -82,8 +80,7 @@ def get_success_url(self):
         return reverse('teachers:quiz_change', kwargs={'pk': self.object.pk})
 
 
-@method_decorator([login_required, teacher_required], name='dispatch')
-class QuizDeleteView(DeleteView):
+class QuizDeleteView(TeacherRequiredMixin, DeleteView):
     model = Quiz
     context_object_name = 'quiz'
     template_name = 'classroom/teachers/quiz_delete_confirm.html'
@@ -98,8 +95,7 @@ def get_queryset(self):
         return self.request.user.quizzes.all()
 
 
-@method_decorator([login_required, teacher_required], name='dispatch')
-class QuizResultsView(DetailView):
+class QuizResultsView(TeacherRequiredMixin, DetailView):
     model = Quiz
     context_object_name = 'quiz'
     template_name = 'classroom/teachers/quiz_results.html'
@@ -188,8 +184,7 @@ def question_change(request, quiz_pk, question_pk):
     })
 
 
-@method_decorator([login_required, teacher_required], name='dispatch')
-class QuestionDeleteView(DeleteView):
+class QuestionDeleteView(TeacherRequiredMixin, DeleteView):
     model = Question
     context_object_name = 'question'
     template_name = 'classroom/teachers/question_delete_confirm.html'