Comparison Food Shopping: Buying Groceries for Two People for One Week

There's no two ways about it ... the resource is the one to use for two-way tables. Young analysts use data on favorite extracurricular activities to create a two-way table. Calculating relative, joint, and marginal frequencies allows...

Being a statistician means never having to say you're certain! Learners develop two-way frequency tables and calculate conditional and independent probabilities. They understand probability as a method of making a prediction. 

Food poisoning, salmonellosis, E. Coli, shigellosis, tapeworms—all these words can strike fear into eaters. Alas, the five-second rule is not necessarily true! Two activities teach teens safety rules for food purchasing, preparation,...

Classmates apply midpoint concepts by leapfrogging around the complex plane. The 12th instructional activity in a 32 segment unit, asks pupils to apply distances and midpoints in relationship to two complex numbers. The class develops a...

What does it mean for two vectors to be linearly independent? The resource presents the basics of basis vectors and linear combinations. The third video in the 15-part series provides a definition of linear independence in terms of the...

If the square root of negative one exists, where is it on the number line? A math video presents a geometric representation of complex numbers and the complex plane, and then compares it to the geometric representation of real numbers —...

11-year-old Birke Baehr describes what he calls "the dark side of the industrialized food system". Explaining everything from genetically engineered seeds and organisms to Confined Animal Feeding Operations (CAFOs), Baehr encourages his...

Graph and solve linear equations in two variables. The class relates the concepts of linear equations to the real world.

Use a function to operate on two variables. Pupils look at operating with complex numbers as a function of two variables. The interactive squares the input and adds a constant to it. Learners visualize the resulting output and its...

Approach inequalities in a new way with this video! This video gives step-by-step instruction on how to solve a 2-step inequality and then graph the answer. Learners could use this video as a reference as they do homework, or you might...