The ultimate spot for teachers to find math tips and strategies for building number sense to 20 in Kindergarten and first grade. An extensive list of number sense activities and resources are included: books, materials, math manipulatives, and FREE activi
This relates to the NCTM standard of understanding the effects of adding and subtracting whole numbers. As students add the designated number of dots to their bugs, they can visualize the addition of two sets of numbers.
Using Number Bracelets to Develop Number Sense. Like dot cards and rekenreks, number bracelets provide concrete practice for number combinations and composing/decomposing numbers. Check out this post for instructions for making and using number bracelets.