Get your child ready for addition and subtraction! Children will review numbers 1 to 10 and be introduced to numbers 11 to 20. Topics covered:• Identifying numbers; • Writing numbers; • Counting; • Adding. How to use this product: Keep On Going! Go on a nature walk with your child. Have him or her collect items, such as rocks, leaves, flowers, shells, pine cones and other objects you see along the way. At home, have your child group the same objects together and count them. Ask which group has the most and which has the least.