Flash and say
Flash a dot card for two seconds and kids call out how many without counting. Start with 1 to 5, then build to 10. Subitizing builds number sense fast and makes adding easier later.
Why it works: a big review of study methods ranked quick self-quizzing among the most powerful ways to remember (Dunlosky and colleagues, 2013).
Try it withSubitize 1 to 10 Flash CardsFlash CardsOpen it →























