TeachEngineering
Teach Engineering: Decimals, Fractions & Percentages
Students learn about and practice converting between fractions, decimals and percentages. Using a LEGO MINDSTORMS NXT robot and a touch sensor, each group inputs a fraction of its choosing. Team members convert this same fraction into a...
Discovery Education
Discovery Education: Architects in Action
Through this lesson, students will learn how to use ratios to create a scale drawing of their classroom's floor plan. It provides adaptations, discussion questions, assessment rubric, and suggested readings to help develop students'...
Texas Instruments
Texas Instruments: Go for the Gold
Students explore and use the concept of ratio in a real-world situation. They will make judgments regarding accuracy and precision of measurement.
CK-12 Foundation
Ck 12: Arithmetic: Comparison of Ratios in Decimal Form
[Free Registration/Login may be required to access all resource tools.] Write and compare ratios in decimal form
CK-12 Foundation
Ck 12: Arithmetic: Comparison of Rational Numbers
[Free Registration/Login may be required to access all resource tools.] Compare and order rational numbers on a number line and by using inequality symbols
Education Development Center
Tune in to Learning: Math Lesson Working With Ratios
Did you know that chefs must know how to use ratios in order to prepare meals? Learn the value of understanding how to write ratios, ratio proportionality, and ratios in lowest terms in this interactive lesson. Based on real world...
CK-12 Foundation
Ck 12: Probability: Definition of Probability
[Free Registration/Login may be required to access all resource tools.] Understand and define probability in terms of ratios.
Purple Math
Purplemath: Ratios
Explains the basic terminology and formatting of ratios, and demonstrates how to solve typical exercises.
Purple Math
Purplemath: Right Triangle Word Problems
Demonstrates how to translate, set up, and solve basic right-triangle word problems.
Purple Math
Purplemath: The Unit Circle
Relates the unit circle to the method for finding trig ratios in any of the four quadrants. Demonstrates how the unit circle might be useful.
AAA Math
Aaa Math: How to Determine a Ratio
This site explains the meaning of ratio and how to determine a ratio. Gives practice and games to practice this skill.
Other
Mathpower: Math Fundamental Assignments
Math variety of concepts, this colorful website is sure to give your students the chance show what they know. Concepts covered include rounding, division with decimals, order of operations, ratio, percent, multiplication, and division of...
Varsity Tutors
Varsity Tutors: Hotmath: Algebra Review: Rates and Ratios
Find a quick, concise explanation of rates and ratios. Examples are given and clearly explained.