Desmos
Desmos is an online graphing calculator that allows for graphing. It can be used to graph multiple graphs at the same time. As well as finding intercepts and other important information based off a graph.
Math Dictionary for Kids
A math dictionary for kids is useful for elementary school teachers. This dictionary has kid friendly definitions as well as examples listed underneath. It is a kid friendly site that students can use to explore math terms as well as see models of the term being used in math.