Primary Resources
Identifying Ratios
Kids complete three different activities to better understand how to identify ratios and then write them in simplest form. Ratios are represented by fraction strips of two different colors. Pupils write what ratio of blue to red is...
Curated OER
Scale/Ratio
Investigate the use of ratios in scale drawings. Learners scale objects up or down using ratios then find the actual size of something using ratios. They apply their knowledge of ratios as they make their own telescopes in science class....
Curated OER
Ratios, Rates and Percentages
In this ratios, rates and percentages activity, 6th graders solve 16 different types of problems that include writing each ratio as a decimal and a fraction in lowest terms as a percent. They also arrange numbers in ascending order and...
Curated OER
The Math of Science: Ratios and Proportions
In this ratio and proportion worksheet, students learn about ratios and how to solve problems with ratios and proportions. They solve three problems using what they learned.
Curated OER
Teaching fractions & ratios with M&Ms
Students collect data using M&Ms, fill in charts, and write ratios and fractions for each color M&M.
Curated OER
The Aspect Ratio of Wings
Junior engineers examine aspect ration in airplane wings. Using the length and width of two differetn wings, they calculate the aspect ratios and compare drag rankings. An engineering or space science class would benefit from this...
EngageNY
The Definition of Sine, Cosine, and Tangent
Introduce your classes to a new world of mathematics. Pupils learn to call trigonometric ratios by their given names: sine, cosine, and tangent. They find ratios and use known ratios to discover missing sides of similar triangles.
Curated OER
Ratio Worksheets
In this ratios learning exercise, students complete the ratios of quantities of money, time, and measurements in the lowest terms. Students complete 8 problems total on this learning exercise.
Curated OER
Ratio, Proportion And Percent Worksheet
In this math learning exercise, students examine the answers to a formal assessment focusing on the concepts of ratio, proportion, and percent.
West Contra Costa Unified School District
Simplifying Fractions Activity
Warm-up pupils' fraction muscles with a four-question quiz, then delve into a learning game designed to reinforce the concept of simplifying fractions. Based on the "I do, We do, You do" method of teaching, the instructional...
Royal Society of Chemistry
A Solid-Solid Reaction between Lead Nitrate and Potassium Iodide
Why is it so difficult to make two solid compounds react? Investigate the concepts of particle collisions and rate of reaction using a quick demonstration. The colorful experiment features two plain, white solids combining to form a...
Curated OER
Using Proportions Homework
In this geometry worksheet, students identify simple ratio and reduce to the simplest forms. They find the measure of missing sides and angles. There are 20 questions.
Charleston School District
Equations of Linear Functions
Teaching linear function relationships using contextual information is beneficial to pupils' understanding. The lesson uses problem solving to build linear functions given different information for each problem. This is the second in a...
Mathematics Vision Project
Module 6: Trigonometric Functions
Create trigonometric functions from circles. The first lesson of the module begins by finding coordinates along a circular path created by a Ferris Wheel. As the lessons progress, pupils graph trigonometric functions and relate them to...
Curated OER
Fractions, Decimal, Percent Relationships.
Students solve problems involving fractions, decimals and percents. In this algebra lesson, students examine the relationship between fractions and percents and between decimals and percents. They convert between percents, decimals and...
Curated OER
Math Homework: Fractions
In this fractions worksheet, students complete true/false questions, find equivalent fractions and use order of operations to solve problems that included exponents.
Curated OER
Locating Rational Numbers on the Number Line
Students explore the concept of locating rational numbers on a number line. In this rational numbers lesson, students change improper fractions to mixed numbers to determine where on a number line the rational number belongs. Students...
Curated OER
Water, Water Everywhere
Students estimate the amount of water that can be found in its various forms including oceans, lakes, glaciers, rivers, etc. They view a demonstration about water distribution and discuss flash flooding safety precautions.
Curated OER
The Meaning Of Percent
This lesson provides students with a variety of exercises which allow them to increase their ability to understand percentage.