Texas Instruments
Texas Instruments: Pass the Ball
In this activity, students use mathematics to examine patterns that occur in a specific scenario and predict future events for the scenario. Data is collected on the time it takes to pass a ball. The students plot graphs, fit the data...
Texas Education Agency
Texas Gateway: Using Multiplication by a Constant Factor
Given problems involving proportional relationships, the student will use multiplication by a constant factor to solve the problems.
Other
Nearpod: Rates & Ratios
In this activity on ratios, 7th graders explore how ratios can be used to demonstrate rates by exploring proportional relationships.
Other
The Futures Channel: Proportional Reasoning
"Connecting learning to the real world" is the goal of the Futures Channel. Through the use of short videos, teachers can integrate real-world examples of how math and science are used in everyday life. Complete teaching guidelines...
Other
Desmos: Marcellus the Giant
Students explore proportional relationships in this activity as they create a giant that is proportional to an original model. The proportions are graphed and students can interact with the graph to change the giant's size.
Other
Desmos: Tile Pile
Students explore proportional relationships in this activity as they build a ratio table in order to project how many tiles would be needed to cover the area of a floor.
Queen's Printer for Ontario
E workshop.on.ca: Effective Instruction in Math, 4 6: Big Ideas [Pdf]
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...
Texas Instruments
Texas Instruments: Just How Many Are There?
This activity introduces students to the concept of using proportional reasoning to estimate the size of an animal population.
Texas Instruments
Texas Instruments: Meal Manager
In this activity, students can use percentages and proportional reasoning skills to solve problems.
Texas Instruments
Texas Instruments: Stepping Stones
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.
PBS
Pbs: Scale City: Scaling Up Rectangles in the Real World
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...
Illustrative Mathematics
Illustrative Mathematics: 7.rp Art Class, Variation 2
In this lesson plan, 7th graders explore proportional relastionships using paint colors.
Illustrative Mathematics
Illustrative Mathematics: 7.rp Buying Coffee
In this lesson, 7th graders explore the proportional relationship between coffee and the cost.
Texas Instruments
Texas Instruments: Set Design
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.
University of South Florida
Fcat: The Shadow Knows (Ratio, Proportion & Measurement)
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.
Khan Academy
Khan Academy: Equivalent Expressions With Percent Problems
Practice equivalent expressions with percent problems.
PBS
Pbs: Soul Food Junkies: Portions
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.
Other
The Education Center: Breakfast It's a Big Deal!
This is a PDF worksheet where students use a real world scenario to find percents using proportional reasoning.
Texas Instruments
Texas Instruments: Banquet Meal
In this activity, students use proportional reasoning skills to increase a family-size recipe to a banquet-size recipe.
Illustrative Mathematics
Illustrative Mathematics: 7.rp Comparing Years
In this lesson, 7th graders determine the proportional relationships to determine the percent decrease.
Illustrative Mathematics
Illustrative Mathematics: 7.rp Chess Club
Seventh graders use their knowledge of proportional relationships to determine the percent increase or decrease.
Illustrative Mathematics
Illustrative Mathematics: 7.rp Two School Dance
The purpose of this task is to see how well students 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...
Other
Nearpod: Interpreting Slope & Y Intercept
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.