MAA and NCTM are websites that mathematicans can join and see if there is any meetings or professional developments. By attending these, we can see what is new in the classroom or math world.
Common Core Standards COMMON CORE STANDARDS ARE LIST OF STANDARDS FOR MATH. AS WELL AS ENGLISH LANGUAGE ARTS.
Superkids, Math drills, Cool Math and Math Aids are websites for students that they can practice their math skills. Also it helps create worksheets for students as well.