SKU: CW20255
Education and Montessori
Active filters
SKU: CW40539
SKU: ME05243
A set of four hourglasses that measure the following distances in time: 1 minute, 2 minutes, 3 minutes, and 5 minutes. They can be used to explain time and how quickly it passes, as well as to perform mathematical calculations based on time.
SKU: CW20259
SKU: 44753
SKU: CW20172
