Students learn about counting by 5s and 10s, expanded notation, and base-ten concepts with a giant number line and base-ten manipulatives. Color-coded and over 19 ft. long, the number line goes from 0 - ;120, breaks down into 24 sections, and has expanded notation printed on the back. Also includes 10 units, 10 rods, and 1 flat for base-ten activities, plus an addition/subtraction game where frogs jump the number line. Made of heavy card stock, this book is meant to be cut apart for hands-on learning. Includes teaching suggestions, learning center ideas, and games. Supports NCTM standards.