It defines it and talks about its origins. It also has a link to a word puzzle of the day. Some of these are challenging, but higher-level students could be encouraged to visit this site regularly. This site gives you a fact for what happened on the current date in Black History. It also allows you to put in any date or a word to search by to find other information.
Most short comments have a button to click for more information.
This website offers a math challenge that involves some thinking skills, as well as, math. This could be another site to encourage students to check out regularly. There is also a family corner that shows parents who are not confident in their math how to help their children.