Curated OER
Fractions, Decimals to Percents
Seventh graders convert fractions and decimals to percents. Using measuring cups, 7th graders model fraction/percent equivalents. They discuss how to change a decimal to a percent. Using the white boards, students review the different...
Curated OER
Ratios, Proportions, and Percents
Eighth graders use ratios and proportions to solve real-life problems. In this using ratios and proportions to solve real-life problems lesson, 8th graders estimate the cost of a road trip. Students estimate the distance between two...
Curated OER
A Number is X% of What Number?
For this algebra worksheet, students solve for the base of a number given the percent and its partial amount. There are 10 questions.
Curated OER
Percent of Change
In this algebra instructional activity, students convert between percents and decimals. They calculate sales tax, discounts and relative errors. There are 4 questions with an answer key.
Curated OER
Family Letter and Activity: Cars, Trucks and Percents
In this math worksheet, students will take home a letter to their parents explaining that they are studying Chapter 10: Ratio, Proportion and Percent. Then students will complete a homework activity in which they ask family and friends...
Curated OER
Calculating Impervious Cover in the City of Austin
Students use GIS to calculate park impervious cover in Austin, TX. They consider that there are different types of impervious cover from hard, packed dirt to cement paving. Students consider the limitations of data in several areas...
Curated OER
Number: Percentages
Students practice and then have a race to calculate percentage and fractional parts. In this percent and fraction lesson, students start with 1% and work their way up. After each practice a quick race takes place. Students complete a...
Curated OER
Atomic Mass, Moles, and the Periodic Table
In this periodic table worksheet, students review atomic mass, molar mass, and percent composition of compounds. Then students complete 4 problems.
Curated OER
Stoichiometry
In this stoichiometry worksheet, students use balanced equations for chemical reactions to determine the percent yield and the mass of product produced. This worksheet has five problems to solve.
Curated OER
Percent
In this percent worksheet, learners problem solve and calculate how to change ten numbers into percents. Students share their answers with their classmates.
Curated OER
Is Bigger Always Better?
Explore rational numbers with the young mathematicians in your class. They will investigate decimals, fractions, and percents before ordering and comparing rational numbers. This multi-day unit includes differentiation activities and...
Curated OER
1999 U.S. National Chemistry Olympiad Part III
In this chemistry olympiad laboratory activity, learners design and carry out two experiments. They design one experiment to test for the percent mass of a substance in a solution and they design another experiment to identify two...
PBS
Soul Food Junkies: Portions
Serve up a rate of percents. The Math at the Core resource investigates the percent of daily value of sodium and saturated fats in different foods. Pupils determine the number of serving sizes they eat of popular snack foods and...
Teacher Created Resources
How to Calculate Discounts and Sales
Teach discounts and sales with a straightforward worksheet. After reviewing the concept, pupils solve word problems related to dollars and percentages. The second half of the sheet prompts learners to continue solving problems related to...
Inside Mathematics
Winning Spinners
Winning a spin game is random chance, right? Pupils create a table to determine the sample space of spinning two spinners. Individuals determine the probability of winning a game and then modify the spinners to increase the probability...
Beyond Benign
All A Loan
When designing a house, it's important to know about percents. Through a series of three lessons, scholars first review percentages through an activity involving M&Ms and then apply that knowledge to calculate compound interest and...
Teach Engineering
Energy and the Pogo Stick
Let your class bounce to examine the concept elastic potential energy. Individuals bounce on a pogo stick in order to calculate its elastic potential energy. Groups then compare the elastic potential energy to the gravitational potential...
National Research Center for Career and Technical Education
Depreciation (Double Declining)
Have you ever been told that your new car begins to lose its value as soon as you drive it off the lot? Aspiring accountants take on the concepts of depreciation and book value through an easy-to-deliver career and technology lesson. The...
Math Warehouse
Theoretical Probability Activity
If you keep rolling a die, you'll roll a five exactly one-sixth of the time—right? A probability lesson prompts young mathematicians to roll a die 100 times and use the data to calculate empirical probabilities. They then compare these...
CK-12 Foundation
Displaying Categorical Variables: Spending Habits
Bar or circle graph—which is best? Given a circle graph and a total amount of money earned, pupils calculate the amount of money in each category. Learners use the calculated amounts to create a bar graph and compare the two displays.
EngageNY
Why Do Banks Pay YOU to Provide Their Services?
How does a bank make money? That is the question at the based of a lesson plan that explores the methods banks use to calculate interest. Groups compare the linear simple interest pattern with the exponential compound interest pattern.
Curated OER
Fractions to Percents
In this percent worksheet, learners problem solve and calculate how to change ten fractions into percents. Students share their answers with their classmates.
Math Mammoth
Mental Math in Percent Problems
In this math worksheet, students are given 21 percentage problems which they are to work out mentally. There are story problems, tables and simple conversion.
Chymist
Alum from Waste Aluminum Cans
Turn aluminum cans into pickles! An engaging experiment has learners chemically change aluminum into a substance with many purposes including the manufacture of pickles. After performing the chemical conversion, the experimenters verify...