Are your lab results both accurate and precise? An interesting video lesson explains the difference between the two descriptions. Using error and percent error measurements, these descriptions become concrete and in turn leads to a...

From hydrogen to ununoctium, this collection of videos has everything you need to begin teaching about the periodic table. Offering descriptions of each element and interesting experiments...

What a fun way to learn about the making of the American Constitution! This video does a great job of describing the circumstances that existed for the delegates in Philadelphia in 1787, where in a just a few days, they would effectively...