Volume 1 in an eworkshop Guide to Effective Instruction in Math outlines and illustrates instructional strategies for explaining five big ideas of number sense and numeration to students in grades 4 through 6: quantity, operational...

This activity introduces students to the concept of using proportional reasoning to estimate the size of an animal population.

In this activity, students can use percentages and proportional reasoning skills to solve problems.

In this activity, students use volume formulas and proportional reasoning to calculate the amount of concrete needed to make stepping stones of a specific size.

In this video, students explore Depression-era post office murals and modern outdoor murals to learn how artists use proportional reasoning and measurement to create large-scale paintings. The video ends with the question, "How do...

In this lesson plan, 7th graders explore proportional relastionships using paint colors.

In this activity, 7th graders explore the proportional relationship between coffee and the cost.

In this activity, students can use similarity concepts, and the dimensions of the carvings on Mt. Rushmore to create a proportional representation of the carvings for a stage backdrop.

Students use their height and the length of the shadow to determine the height of buildings. A great outdoor activity to learn about proportions and ratios.

Practice equivalent expressions with percent problems.

Practice with tax and tip word problems.

Consider the relationships among health, portion size, and traditional soul food and fast food diets in this video from the Center for Asian American Media.

This is a PDF worksheet where students use a real world scenario to find percents using proportional reasoning.

In this activity, students use proportional reasoning skills to increase a family-size recipe to a banquet-size recipe.

In this instructional activity, 7th graders determine the proportional relationships to determine the percent decrease.

Seventh graders use their knowledge of proportional relationships to determine the percent increase or decrease.

The purpose of this task is to see how well learners students understand and reason with ratios. This task was adapted from problem #14 on the 2011 American Mathematics Competition (AMC) 8 Test. Aligns with 7.RP.A.3. The site provides a...

In this lesson on interpreting slope and y-intercept, 8th graders will learn how to identify the slope and the y-intercept of a line in order to identify if a proportion is demonstrated.

The triathlon is a physically gruelling challenge. Can you work out which athlete burnt the most calories? This activity provides a real-life context for working with proportionality, speed, rates, and units of measurement and is aimed...

A performance task in which students solve a problem involving a proportional relationship. The problem is: The temple at the top of the pyramid is approximately 24 meters above the ground, and there are 91 steps leading up to the...

In this lesson, 7th graders will learn how to solve percent of change problems.

In this video, students visit a small-town festival that features the world's largest stainless steel skillet. In addition to a question about scaling recipes, they also are asked how increasing or decreasing the radius of a circle...

This task challenges a student to demonstrate understanding of concepts involved in rates. Students must make sense of proportional relationships of speed in minutes and inches.

Students analyze proportional relationships and use them to solve real-world and mathematical problems. Here, look for patterns to understand and solve percent change problems.