Imagine your typical flashcard deck. Better yet, if you have a deck of flash cards, take a card from that deck. Restate said flash card into a question-answer format, then input it into this program as per the on-screen instructions. Once you've done that for all the cards you want to work on, type "Begin". The evil Knowledge Squares aim to deplete your 3 lives to nothingness! To slay one of them, click it to capture it, then read its question. Think of your answer in your head, then press space. If your answer matched its answer almost(or completely), press the green button. If it only matched partially, hit the yellow button. If it didn't match at all, hit the red button. Repeat until they're all dead. Note that each question you get right gets you a Frost Charge Point. Once you have 10 of those, press space while no enemy is entrapped, and the charges will be depleted, temporarily pausing the enemies.
I'm currently involved in Western Civ and Biology I. AAAGH. So much memorization involved. So I made this thingamajigger to help me memorize the stuff.