Leap Frog Math Grade 1 Author:Leap Frog The new workbook from Leap Frog and Learning Horizon is designed so your child can learn important early math concepts while having fun with his/ her favorite Leap Frog characters. — counting, skip counting, adding, subtracting, word problems sorting money, and time — A unique CD is included with this workbook for extra learning fun! Printable ac... more »tivity pages, a colorful sticker page, a skill progress chart, and a certificate to personalize are included.« less