What You See Is Not Always What You Get

For kids who love movies, figuring out a schedule for the maximum number that can be seen in one day is not only a good demonstration of Common Core mathematical practices, but also a highly motivating activity. Robert Kaplinsky...

Students estimate and calculate the distance of a shape. In this algebra lesson, students differentiate between a horizontal distance and it's reflected image. They measure the reflection and the point starting at the eye of the observer.

What happens in the muscles during anaerobic and aerobic exercise, and how does this affect the heart and our overall health? A cross-curricular lesson that introduces learners to the lifelong benefits of exercise, including the ability...

We are not exactly sure what a Squeeble is, but apparently they love cake and fractions, and your little bakers-turned-mathematicians will also. This app focuses on the basics of fractions including modeling fractions, equivalent...

When it comes to rating educational calculators, this calculator is always near the top of this list. Now it's available as an app. There is a lot of calculator power wrapped up in this app. Not only is this a fully functioning...

PEMDAS is not all that it is cracked up to be. The short video provides an argument that the order of operations may not be instructionally sound. The presentation shows that understanding the concepts and properties of mathematics...

Can you use math and logic to beat the bad guys? You can in space! Take an intergalactic trip into a seedy and speedy crime syndicate with the Seven Planets Riddle, which challenges two interstellar police officers to use deductive...

Why doesn't dividing by zero result in infinity? Scholars view an engaging TED-Ed video that describes why division by zero is not allowed. It explains how division is related to the multiplicative inverse, and why 1/0 cannot be equal to...

If there is something in addition to get to the identity, does the same exist for multiplication? Using negative numbers to talk about the identity of addition, the video asks the question whether something similar exists for...

Ever wonder what you are paying for a single fry at McDonald's? An engaging lesson compares the cost per fry in a small order to a larger order. It's a great application of unit rate that is sure to make your classes hungry for more!