This video introduces both students and parents to the Marshall Math Books. The book can be used as follow-up practice and cumulative review to many of the Montessori math lessons.

This is the first chapter in the Kim Marshall Math Series. This chapter introduces intervals in a series of numbers. These intervals are lists of multiples. This work usually begins in 4th or 5th grade. It is best to go through the chapters in order.

This lesson presents how to write numbers as words. This is an important skill for 5 1/2 to 10 year-olds. (and anyone else who needs refreshing in this area) Practice of this skill is provided in Chapter 2 of the Kim Marshall Math Book A

Chapter 3 covers factors and prime numbers of numbers 2 to 50. It is a great follow-up practice to tables A, B, and C.

Exploring Prime Factors using the traditional bubble or "root" method as demonstrated in Unit 4 of the Marshall Math Series Book A.