Instructional Video9:58
Curated Video

Bounds: Finding the Upper Bound for the Value of an Algebraic Equation

9th - 12th
This video shows the process for solving the problem presented in IGCSE A June 2018 paper 2HR Q19, which involves bounds. By using algebraic manipulation and rounding to the correct number of significant figures, we will work through the...
Instructional Video1:15
PBS

The 100th Day of School | All About the Holidays

K - 5th
You've heard of Christmas, and New Years, and Kwanzaa, and Thanksgiving. Hanukkah, Mardis Gras, Valentine's Day, Halloween. But do you recall the most famous holiday of all? It's the 100th day of school, of course. Celebrate the number...