 | Provides educational drills that quickly cement knowledge. |
| Uses multiple-choice format. |
| An immediate response of correct or incorrect is provided for each
question. |
| After all questions are given, questions that were answered incorrectly
are repeated. |
| When all questions are answered correctly the questions that were
answered more slowly are repeated. |
| Questions are given in random order. |
| Answer are shuffled so the correct answer to a particular question is not
always the same multiple-choice letter. |
