Math

 Activities for Kids 

https://word.tips/math-activities-for-kids/

Students would find this webpage helpful as it provides a range of fun and interactive math activities to make learning math enjoyable and less intimidating. This list of games and activities are designed to promote critical thinking, problem-solving, and reasoning skills. The webpage is a great resource for parents and educators looking for ways to supplement their children's math learning at home or in the classroom. It also helps children to build a positive attitude towards math by making it a fun and exciting subject to learn.

From Anthony Palomarez: Index of Mathematics Definitions

We wanted to compile the most complete index of mathematics definitions that we could and I'm really happy with the way it turned out. It's an excellent reference for students, parents and teachers alike. 
https://www.perlego.com/index/mathematics