Help your child develop early math skills with the I Know 123s workbook. I Know 123s for ages 3+ teaches your child to count to 20 and to recognize and write numbers and number names. This early learning workbook features fun, colorful activities to keep young children engaged in learning. I Know 123s includes special bonus features to assist in developing critical thinking and to encourage your child to apply new skills. This workbook also includes stickers to help you motivate and reward your child for a job well done. Packed with colorful and engaging activities, the I Know series helps children ages 3+ master early learning skills. Each page features fun, easy-to-do activities that teach letters, numbers, sight words, and more. All of the I Know workbooks include creative extension activities to help your child develop critical thinking skills, apply what they have learned, and make personal connections. Give your child the practice they need for school success with the I Know series!