Real World Math: Concept Lessons - Money Makes the World Go Around
Real World Math

Crisscrossing across the Google Earth globe, students connect the monetary units to the related country in a series of exchange rate problems. 

Illuminations: Blue Squares and Beyond
Illuminations (National Council of Teachers of Mathematics)

This lesson invites students to manipulate two rectangles to create examples of similarity and to study the effects on area ratios.

Illuminations: Go With Green Rectangles
Illuminations (National Council of Teachers of Mathematics)

Students manipulate 2-dimensional rectangles to focus on the relationship between the scale factor and ratio of perimeters of similar rectangles, and the relationship between scale factor and ratio of areas of similar rectangles.

Illuminations: Going the Distance
Illuminations (National Council of Teachers of Mathematics)

The interactive paper pool game in this i-Math investigation provides an opportunity for students to further develop their understanding of ratio, proportion, and least common multiple.

Illuminations: Look for Patterns
Illuminations (National Council of Teachers of Mathematics)

The interactive paper pool game in this i-Math investigation provides an opportunity for students to further develop their understanding of ratio, proportion, and least common multiple.

Illuminations: Paper Pool Game
Illuminations (National Council of Teachers of Mathematics)

The paper pool game provides an opportunity for students to develop their understanding of ratio, proportion, greatest common divisor, and least common multiple.