Flash Cards
Introduction, Stage 4 – Mental Math – Single-Digit Add & Sub
The ease of practicing math facts using flash cards makes them tempting. However, they are often abused by well-meaning helpers and can contribute to math hatred. Beyond the psychological damage that occurs with overly-enthusiastic drill, using flash cards misses out on learning important relationships between numbers. Feel free to use flash cards to give focused practice for a small handful of facts, but please keep the practice limited and relaxed.
This page and the next have methods that practice structural insights that are useful and far more interesting to your child, and they should be used until the facts become automatic.