Students viewing their scores

I am very disappointed with the "new" features on Khan Academy. I have used Khan successfully for 4 years but I have not relied on it as much this year. I teach 6th graders and this website is no longer friendly for them or me. Why would you remove student's accountability by replacing their scores with a complete. They have completed whether their score is 0 or 100. PLEASE go back to the previous features so that we can use Khan to help in the classroom.