Ratios, Mars and the Internet

How do you fit a tape measure around the Earth? No need if you know a little geometry! Pupils begin by extending their understanding of the Side Splitter Theorem to a transversal cut by parallel lines. Once they identify the...

Do these items have the same ratio? Through a learning contract, pupils master proportions by practicing proportions via word problems, graphs, and with manipulatives. An exit ticket checks for understanding at the end of the...

The class gets to practice being a mathematician in ancient Greece, performing geometric application problems in the way of Eratosthenes. After following the steps of the great mathematicians, they then compare the (surprisingly...

Start the exploration of trigonometry off right! Pupils build on their understanding of similarity in this instructional activity that introduces the three trigonometric ratios. They first learn to identify opposite and adjacent...

Increase pupil understanding of formulas as they apply surface area and volume calculations to determine ratios of different prism sizes. The examples include both a cube and rectangular prism. 

Is there time? Fencers need to make mental calculations within a match. The Math at the Core MS: Ratios resource points out that fencers calculate the ratio of touches per time left to help develop strategies to win. The competitors also...

Quick, nurse, grab a calculator! A role-playing activity has groups measure vitals, such as heart rate, blood pressure, weight, etc. After viewing a video on how nurses use math in the workplace, scholars apply knowledge of rates and...

Winter, spring, summer, and fall—Earth experiences them all! But what about Mars? Scholars compare the planets in terms of distance, tilt, and rotation during a lesson from PBS's Space series. Great visual models of Earth and Mars, plus...

Help your class understand the magnitude of the distance between Earth and Mars with an activity that asks small groups to use balloons to create scale models of the Earth, Moon, and Mars. Class members figure out the distances...

A comprehensive guide for learning all about ratios with definitions, ratio scale, ratio meaning, ratio definition, ratio calculator, ratio table, ratio math, ratio formula, solved examples, and practice questions.