Examination pattern in Vietnam is not hard standard. It is depended on subject, time allotted of test. Teacher can set percent for the type of question and percent of mark (max=10).
60-100% self-review questions (long and short questions)
40-100% multiple choice questions
Example, you can use a test that contents 100% multiple choice questions. There are 40 questions in the test. Student have do test in 45 minutes (1 period)
Have you ever used mindmap in teaching? Can you share your experience to me?