Curated OER
What Is the Percent?
In this percent worksheet, students find the percent of one number to another. A website reference for additional resources and an answer key is given.
Curated OER
Percentages and Fractions of Amounts
In this math worksheet, students change percents to fractions on five problems. Students complete a table. Students find a given percent of five numbers. They complete five story problems involving percents.
Curated OER
Bits and Pieces - More About Percents - Online Manipulatives
In this online percentages activity, students access the Library of Virtual Manipulatives web site and open the percentage tool. They use the online tool to complete 8 multi-step questions making graphical representations and finding...
Curated OER
Percent Notation
In this algebra worksheet, students divide circles into equal portions as they explore percents and decimals. They convert between decimals and fractions using ratio and proportion. There are 8 questions.
Curated OER
Determining Percent Composition
In this percent composition worksheet, students calculate the percent composition of compounds using their formula masses and masses of individual elements. They solve nine problems including calculating percent composition, finding...
Curated OER
A New Life
Middle schoolers write a paper about how their life would be different if fractions, decimals and percents did not exist. The teacher leads a discussion after the papers are written.
Curated OER
Molecular Mass and Percent Composition
In this molecular mass and percent composition activity, high schoolers complete 5 sections where they determine atomic masses of given elements, they determine formula masses for given molecules, they find the molecular mass of 12...
Curated OER
One Size Fits All, Part 1
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....
Curated OER
Minority Graduation Rates: A 50-50 Chance
High schoolers conduct research on issues and interests by generating ideas and questions and by posing problems. They gather, evaluate and synthesize data from a variety of sources. For this lesson the issue is minority graduation rates.
Curated OER
The Campaign of 1840: The Candidates
Students compare and contrast William Henry Harrison and Martin Van Buren as candidates for president. They explain why the Whigs wanted to find a candidate in the mold of former president Andrew Jackson and discuss whether Harrison fit...
Noyce Foundation
Lawn Mowing
This is how long we mow the lawn together. The assessment requires the class to work with combining ratios and proportional reasoning. Pupils determine the unit rate of mowers and calculate the time required to mow a lawn if they work...
101 Questions
The Biggest Loser
Sometimes losing is actually winning! Learners use a proportional analysis to compare percent weight loss of contestants on The Biggest Loser. The resource provides data and clips from the show to facilitate the lesson.
Teach Engineering
About Accuracy and Approximation
How accurate are robots? Groups draw lines by moving robots backwards and forwards by one rotation of the wheels. Using the appropriate formula, they determine the percent error in the length of the lines in relation to the calculated...
Beyond Benign
Water Bottle Unit
How much plastic do manufacturers use to create water bottles each year? The class explores the number of water bottles used throughout the years to determine how many consumers will use in the future. Class members compare different...
Inside Mathematics
Hopewell Geometry
The Hopewell people of the central Ohio Valley used right triangles in the construction of earthworks. Pupils use the Pythagorean Theorem to determine missing dimensions of right triangles used by the Hopewell people. The assessment task...
CK-12 Foundation
Prices Involving Discounts: Save Money with Coupons!
Nine questions make up an interactive that challenges scholars to identify new prices after discounts. Question types include fill in the blank and multiple choice. A fully-functional tool assists participants in solving word problems....
Mathematics Assessment Project
Ice Cream
I scream, you scream, we all determine the amount of ice cream! Pupils calculate the amount of ice cream flavors needed based on survey results in a short summative assessment. They determine the number of tubs and cost of ice...
Noyce Foundation
Time to Get Clean
It's assessment time! Determine your young mathematicians' understanding of elapsed time with this brief, five-question quiz.
Inside Mathematics
Magic Squares
Prompt scholars to complete a magic square using only variables. Then they can attempt to solve a numerical magic square using algebra.
CK-12 Foundation
Complement Rule for Probability: Changes in an Election
Pupils determine the probability of one mayoral candidate winning given the other's chance. The interactive provides a circle graph to help visualize each candidate's percentages of winning.
Curated OER
Decimals and Percents - Part Two
Young scholars explore the concept of converting percents to decimals. In this conversion lesson, students convert percents to decimals.
Curated OER
The "Heart" of the Problem
Students explore mathematical operations while studying nutrition. In this physical fitness lesson, students explore calories, pulse rate, and the circulatory system. Students use mathematical data to create a healthy physical fitness...