Activity
101 Questions

Amazon Percent Discount

For Teachers 6th - 8th Standards
Everyone loves a good sale! A straightforward lesson provides practice with calculating a percent off of a product. Using ads from Amazon, individuals calculate the percent off the ad does not show. Pupils see the answer after revealing...
Assessment
Concord Consortium

Hockey Pucks

For Students 5th - 7th Standards
Package design is a mathematical task for any business. Young scholars use a package design to determine the number of packages required for specific shipments. Using ratios, proportions, and fractions, they make decisions about the best...
Lesson Plan
Curated OER

Daily Time Ratios

For Teachers 7th - 9th
Students track and record how much time they spend on each activity. In this spreadsheet lesson, students apply different functions using Microsoft excel to format cells and calculate the sum of their total time spent each day. They...
Lesson Plan
Curated OER

How Big Is That Star?

For Teachers 6th - 9th
Aspiring astronomers study stars. They compare stars and explain the relationship between radius, mass, and diameter. By creating a star simulation, they discover how a binary star system's orbit can cause changes in the observed...
Lesson Plan
Curated OER

Mixing Up Ratios

For Teachers 9th - 10th
Learners solve problems of ratio and proportions using hands on. In this algebra lesson, students vary the concentration of a fruit drink using parts of a ratio.
Lesson Plan
NTTI

If You Hopped Like a Frog

For Teachers 6th - 8th Standards
Get your frogs hopping by introducing them to the concepts of ratio and proportion. As a class, they perform arithmetic operations using ratios then discover how they represent quantitative relationships. In groups, they write their own...
Activity
1
1
PBS

The Lowdown — Exploring Changing Obesity Rates through Ratios and Graphs

For Teachers 6th - 9th Standards
Math and medicine go hand-in-hand. After viewing several infographics on historical adult obesity rates, pupils consider how they have changed over time. They then use percentages to create a new graph and write a list of questions the...
Lesson Plan
Curated OER

Using Ratios to Taste the Rainbow

For Teachers 9th - 11th
Students solve problems using ratios and proportion. In this algebra lesson, students analyze skittles and their different colors as they apply the properties of ratios and proportions to solve their problems.
Lesson Plan
Curated OER

Comparing Ratios

For Teachers 7th - 10th
Students solve problems using ratio and proportion. In this math comparison lesson, students identify methods used to solve and compare ratio and proportion in the real world. They apply criss cross multiplying to solve their problems.
Assessment
Achieve

Yogurt Packaging

For Students 7th - 10th Standards
Food companies understand how to use math to their advantage. Learners explore the math related to the packaging and serving size of yogurt. They then use unit analysis and percent values to make decisions on the product development.
Lesson Plan
Curated OER

Ratio, Percent, & Proportions

For Teachers 7th
Seventh graders explore the concept of percents, ratios, and proportions. In this percents, ratios, and proportion lesson plan, 7th graders have 237 ounces of beads to weigh. Students work in groups to weigh the beads in a way so that...
Lesson Plan
Curated OER

Ratio Relationships

For Teachers 9th - 11th
Students solve for the different ratio and proportion of a problem. In this geometry lesson plan, students show their knowledge of how to solve proportional relationships. They convert between percent, decimals and fractions.
Lesson Plan
Curated OER

Shots, Standings, and Shopping

For Teachers 6th - 8th
Rates and ratios can easily be applied to real-world situations. Learners explore a series of websites in order to procure comparable data. They define ratios and rates, view videos, and use the internet to explore how ratios and rates...
Activity
101 Questions

Square Partitions

For Teachers 6th - 8th Standards
Challenge your classes while developing their problem-solving skills. A square is divided neatly into four equal triangles by its diagonals until one diagonal is moved from a vertex to the midpoint of one side. Now, scholars must devise...
Assessment
Achieve

Corn and Oats

For Students 6th - 10th Standards
How much land does a parcel hold? How much fertilizer does it take for a field of corn? Pupils answer these questions and more as they apply ratio reasoning and unit analysis. 
Lesson Plan
Curated OER

Ratios and Proportions

For Teachers 9th - 11th
Students solve problems involving percents and ratios. In this algebra lesson, students convert decimals to percents and percents to decimals. They solve problems involving algebraic expressions and four different kinds of percent problems.
Lesson Plan
Bowland

Explorers – Patrol Services

For Teachers 6th - 9th
Far out — plan a trip to space! Aspiring mathematicians steer a space vehicle through an asteroid field, calculate currency exchanges to buy provisions, and determine placement of charges to blow up asteroids. Along the way, they learn...
Lesson Plan
Curated OER

Build a Skittles Graph

For Teachers 7th - 11th
Students construct a bar graph with a given set of data. They calculate the ratio and percent of the data. Students discuss alternate ways of graphing the data as well as multiple strategies to approach the task.
Lesson Plan
Curated OER

When Am I Ever Going to Use this?

For Teachers 8th - 10th
Students solve problems using equations and properties of integers. In this algebra instructional activity, students solve problems using ratio and proportion and graph their answers on a coordinate plane. They solve word problems using...
Lesson Plan
Curated OER

One Size Fits All, Part 1

For Teachers 5th - 8th
Can you tell how tall someone is just by looking at their feet? In this activity, young mathematicians measure their height, arm span, and foot size, graph their findings, and answer questions about how these measurements are related....
Lesson Plan
Curated OER

A Blast From The Past

For Teachers 6th - 8th
Students investigate ratio and proportion as they solve problems. In this algebra lesson, students calculate the percent increase on salaries and convert between decimals and percents to calculate. They rate job positions from 1936...
Lesson Plan
Curated OER

Problem Solving Using Percentages

For Teachers 8th - 10th
Students explore the concept of percentages. In this percentages lesson, students find the percentages of various colored m&m's in their bags. Students find the cost of items before and after a discount. Students use proportions to...
Lesson Plan
Curated OER

Proportions in Stories

For Teachers 8th - 10th
Students solve problems dealing with ratios and proportions. In this algebra lesson, students rewrite word problems using equations and symbols. They correctly convert between percents and decimals.
Worksheet
Curated OER

Largest Hamburger Ever?

For Students 5th - 7th Standards
If a 150 lb. person can comfortably eat and digest a 1 lb. burger, then how large would the person be who can comfortably eat and digest a 350 lb. burger? For a burger that size, it would take either a large person or a class of really...