Grasping must-know math concepts is easy as 1-2-3 with this comprehensive set of readers on the topics young learners need to know: numbers, counting, addition, subtraction, shapes, simple fractions, time, measurement, and much more. Inside this cheery red tub, you'll find six copies of 25 engaging titles (for a total of 150 books), which makes them perfect for group learning. Includes a big teaching guide filled with lesson plans, skill-building reproducibles, and more! Ages 4 to 6, Grades P to 1