Time is an abstract concept that's difficult to grasp. But waiting for the turkey to come out of the oven on Thanksgiving is a concretely yummy experience.

Get estimating with this spooky activity that asks your young mathematician to rely on their problem-solving skills to figure out how many items they believe are in spooky Halloween jars!

In this simple and social activity, children use size comparison skills to find objects in nature that are bigger, smaller, longer, and shorter.