+
Activity
TeachEngineering

Teach Engineering: Decimals, Fractions & Percentages

For Teachers 4th - 5th
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...
+
Lesson Plan
Discovery Education

Discovery Education: Architects in Action

For Teachers 6th - 8th
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'...
+
Activity
Texas Instruments

Texas Instruments: Go for the Gold

For Teachers 6th - 8th
Students explore and use the concept of ratio in a real-world situation. They will make judgments regarding accuracy and precision of measurement.
+
Unit Plan
CK-12 Foundation

Ck 12: Arithmetic: Comparison of Ratios in Decimal Form

For Students 7th
[Free Registration/Login may be required to access all resource tools.] Write and compare ratios in decimal form
+
Unit Plan
CK-12 Foundation

Ck 12: Arithmetic: Comparison of Rational Numbers

For Students 7th
[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
+
Unit Plan
Education Development Center

Tune in to Learning: Math Lesson Working With Ratios

For Students 2nd - 5th
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...
+
Unit Plan
CK-12 Foundation

Ck 12: Probability: Definition of Probability

For Students 6th - 7th
[Free Registration/Login may be required to access all resource tools.] Understand and define probability in terms of ratios.
+
Handout
Purple Math

Purplemath: Ratios

For Students 6th - 8th Standards
Explains the basic terminology and formatting of ratios, and demonstrates how to solve typical exercises.
+
Handout
Purple Math

Purplemath: Right Triangle Word Problems

For Students 9th - 10th
Demonstrates how to translate, set up, and solve basic right-triangle word problems.
+
Handout
Purple Math

Purplemath: The Unit Circle

For Students 9th - 10th Standards
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.
+
Unit Plan
AAA Math

Aaa Math: How to Determine a Ratio

For Students 5th - 8th Standards
This site explains the meaning of ratio and how to determine a ratio. Gives practice and games to practice this skill.
+
Website
Other

Mathpower: Math Fundamental Assignments

For Students 9th - 10th Standards
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...
+
Activity
Varsity Tutors

Varsity Tutors: Hotmath: Algebra Review: Rates and Ratios

For Students 6th - 8th Standards
Find a quick, concise explanation of rates and ratios. Examples are given and clearly explained.