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 instructional activity, students differentiate between a horizontal distance and it's reflected image. They measure the reflection and the point starting at the eye...

If a number is longer, does that mean it is greater? Use a number line application of the TI-73 to compare and order decimals. By the lesson plan's end, the class will understand that the longer decimal is not always the largest decimal.

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...

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...

So you have a variable on both sides of the equation. How do you solve this kind of equation? Just get like terms together on each side of the equation and then isolate that variable.

Yes, it's a word problem but you have all the information you need to solve it. You have a formula, and they have given you a value to plug in. So get to it and write out the formula, plug in the value and solve this word problem.

Yes, it's a word problem but you have all the information you need to solve it. You have a formula, and they have given you a value to plug in. So get to it and write out the formula, plug in the value and solve this word problem.

Finding the additive inverse is not as complicated as you might think. The instructor demonstrates how to multiply each of the terms in the polynomial by -1 and explains how this works. But wait, there's a quicker way. What's that you...

Monomials are numbers, variables, product of number(s) and variable(s). However, any expression with addition, subtraction or division in it is not a monomial. The instructor gives many examples.