"How Tall, How Short, How Faraway" by David A. Adler

Find here a complete lesson dealing with the equations and graphs of proportional relationships, as well as what each individual point on such a graph represents. It may appeal to girls in particular, as the data details the growth rates...

How tall is the Empire State Building? Lead your class through a collaborative estimation activity to determine the number of quarters it would take to reach the top and teach the following concepts: human capital, human resources,...

Your algebra learners will pick up some solid algebra problem solving skills and a plan of approach for some typical types of word problems in this scripted worksheet that shows how to set up and organize each type of problem, create the...

For this multiplying decimals worksheet, students research the weight of 10 common objects on Earth, then multiply by a decimal factor to find the weight of each object on the different planets. Students research how scientists calculate...

Just how do Hagrid's measurements compare to those of your scholars? In an attempt to determine the size of Hagrid, the keeper of magical creatures in the Harry Potter series, the class collects data to find the average size of a...

A whole pizza is definitely better than a half, but is an eight piece pizza better than a six-piece pizza? Watch how one whole can be composed of infinite choices of numerators and denominator as long as they match. 

Ingrid got some good advice from her father about building a bridge out of pasta. Now she has to do some calculations to build a strong pasta bridge. Figure out how tall she can build her bridge based on a given length. Two given values...

Continue practicing absolute value with the last video of a series about comparisons of absolute value with regard to order. The visual representations of more debt and less debt, deeper and shallower, and even cold and colder help class...

Aspiring astronomers study stars. They compare stars and explain the relationship between radius, mass, and diameter. By creating a star simulation, they discover how a binary star system's orbit can cause changes in the observed...

Don't let your learners get confused with expressions. This video shows step-by-step how to write expressions and what each part means. Reviews the difference and similarities between numerical and algebraic expressions. Go through two...