When students enter the Q&A function, see “Fig. 7”, they
need to answer 10 questions. The questions were based on the
3D instruction and generated randomly from database. The
question type of Q&A function was multiple-choice. Students
need to choose the most suitable option to answer the questions
and the system will give students different feedback according
to their answer, see “Fig. 8”. There was no time limit for
answering question. Students can get scores if they got the
correct answers. This function also allows students to do selfassessment
to review their learning.