One hundred flash cards, eight to a sheet, for the addition facts within 20: every pair of numbers from 1 to 10, from 1 + 1 to 10 + 10, with turnaround facts on cards of their own. Each front shows a fact stacked as in a column; its back shows the sum, with the fact printed small in the corner for sorting. Print the pack double-sided and flip on the long edge: each back sheet is laid out mirrored, so every card's back lands behind its front. On a printer that prints one side, choose Fronts only under Print, put the printed sheets back in the paper tray, then choose Backs only. Fronts have a thick frame and backs a thin one, so a card turned the wrong way stands out.
Use part of the set at a time: the doubles one week, the facts that make a ten the next. Partners take turns showing a card and saying the sum, then turn it over to check. Keep the facts a child misses in a practice pile.
Five minutes a day goes further than an hour once a week. Start with the facts your child knows, then add two or three new ones each day.
This pack supports the following Common Core State Standards for Mathematics:
© Copyright 2010. National Governors Association Center for Best Practices and Council of Chief State School Officers. All rights reserved.
Flash cards for the addition facts within 20, every pair of numbers from 1 to 10, with the fact on the front and its sum on the back. Children say each sum, then turn the card over to check.
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