These segmented red and blue rods, ranging from 10 centimeters to 1 meter in length, represent quantities from one to ten. Each rod is marked with alternating red and blue sections, clearly... Read more »
A number roll is a Montessori math material consisting of a long strip of paper divided into sections, each labeled with consecutive numbers, typically from 1 to 100 or even 1000. This... Read more »
