Learning is a process that takes time.

To measure one's intelligence is done multiple times over learning new knowledge.

The steps to retake a test.
1. Come to class the week after the test.
2. Given the test back and you get 30 min to adjust answers = 2nd look.
    *There is no retakes since there are 2nd looks.
3. You get the 2nd look grade.

difference of not knowing to not knowing YET!