About the Manual
The
Mathematics Teaching Manual Volume 3 begins with the Decanomial: the sensorial decanomial, the algebraic decanomial and the geometric decanomial. The Decanomial is Montessori's brilliant bead material that can concretely represent the multiplication tables from 1-10.
The decanomial lessons prepare the child for the lessons with powers of numbers, multiples and factors, and prime numbers and prime factors with the Bead Cabinet.
Divisibility with the Golden Beads is a preparation for determining Lowest Common Denominator with fractions. The Divisibility lessons offer many different ways to determine divisibility by 9.