Toothpicks are as good a manipulative as any. Young mathematicians view a short video that introduces a toothpick puzzle. By moving one toothpick, they must produce a correct equation from an incorrect one.

Explore the puzzle of factoring quadratic trinomials using the video lesson. The instructor demonstrates the trial and error process of finding the binomial factors. She shows how to check the factors using multiplication.

Viewers play a game with Sal, in which he presents three different data sets that come from either linear, quadratic, or exponential functions. In solving this puzzle, Sal manages to not only provide a strong definition of each function,...

This QuickTime movie provides an opportunity to practice solving Wordsworth Puzzles using Algebra. As you watch and listen to the teacher and student interact it helps clarify the thinking behind applying this concept.

In this video segment from Cyberchase, Digit and Inez must balance two number sentences to save the bunnies of Cyberspace.

In this video segment from Cyberchase, Digit and the CyberSquad learn that equations are balanced when the same number is on each side.

When trying to solve a game, or a puzzle, there are lots of variables. The trick is knowing how to change one variable at a time to see what changes. In this episode of Crash Course Kids, Sabrina plays a game with Catbot to show us how!...

After viewing video components, students use manipulatives to work with the famous Towers of Hanoi problem. The goal is for learners to begin to understand recursive logic and thinking, relevant to computer scientists, mathematicians,...