Illustrative Mathematics
Selling Computers
A quick activity to test your learners' knowledge of percent increase. When an electronic store needs a 30% increase in computer sales, your mathematicians must calculate how many computers they need to sell next month.
Illustrative Mathematics
Sharing Prize Money
When three classrooms are to split up prize money, your mathematicians must find the percentage that each class deserves and calculate the total amount. There is an option to use a calculator and practice rounding.
EngageNY
Percent Rate of Change
If mathematicians know the secret to compound interest, why aren't more of them rich? Young mathematicians explore compound interest with exponential functions in the twenty-seventh installment of a 35-part module. They calculate future...
Curated OER
Percent Worksheet 15
In this percent worksheet, learners calculate the percentages of two and three digit numbers. Students complete 18 problems where they calculate percentages.
Curated OER
What Percent of a Number is a Number?
In this algebra activity, students answer the question to what percent of a given number is a given number by setting up a percent proportion. There are 10 questions.
Illustrative Mathematics
Shirt Sale
Everyone loves a good deal, and your mathematician's job is to calculate the original price when given the discount. A different type of problem than the traditional "find the percent change" has your learners working backwards to...
Science Geek
Percent Composition, Empirical and Molecular Formulas
Help your pupils understand when empirical becomes molecular. The lesson presentation demonstrates the connection between empirical formulas and molecular formulas. Then, given percent composition, the lesson demonstrates the steps to...
Curated OER
Measuring for Chemistry: Moles, Compounds, and Conversions
Through a station rotation activity, scientists complete 9 chemistry activities to complete this interactive worksheet. Concepts include molar masses, percent composition, accuracy vs. precision, mass of an object, scientific notation,...
Curated OER
Stoichiometry
In this stoichiometry worksheet, students solve thirty problems using the process of stoichiometry to find moles, molecules, and masses of substances in chemical reactions. Students balance chemical equations, find limiting reagents and...
Curated OER
Take Math Shopping!
Percents, estimation, and comparative analysis become more understandable when they are used in-context at the grocery store.
National Research Center for Career and Technical Education
Finance: Depreciation (Double Declining)
Of particular interest to a group of business and finance pupils, this activity explores depreciation of automobile values by comparing the double declining balance to the straight line method. Mostly this is done through a slide...
Curated OER
Percent
In this percent worksheet, students calculate the percent of each number. Students calculate percentages of 10 numbers and write the answers with decimals.
Curated OER
Percent
In this percent activity, students express fractions as percentages. Students complete 10 problems where they calculate fractions as percentages.
Curated OER
Percent
In this percent instructional activity, students express fractions containing one and two digit numbers as percentages. Students complete 10 problems where they calculate fractions as percentages.
EngageNY
End-of-Module Assessment Task: Grade 7 Mathematics Module 4
Asses the class to determine their knowledge of proportional relationships involving percents. Class members work through the nine-question assessment with a variety of percent problems. The multi-step problems involve simple interest,...
Beyond Benign
Green"er" Precipitation Reaction
All sodium carbonate may not have the same amount of carbonate, but it should have the same percent. Learners write and balance an equation to predict the chemical reaction between sodium carbonate and zinc acetate. Through the lab...
Curated OER
Percents: (An Application to Real Life Problems)
Seventh graders explore the concept of calculating percents. In this calculating percents instructional activity, 7th graders simulate ordering food off of a menu. Students work in groups to calculate the bill, tax, and the tip for the...
Math Mammoth
Fractions, Percents, and Decimals
In this percents activity, students complete 3 charts in which percents, decimals and fractions are converted. Students also solve 20 problems with the changing of percents to decimals or fractions.
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
Convert among decimals, fractions, and percents
Seventh graders convert among decimals, percents, and fraction with and without a calculator. In this seventh grade mathematics lesson, 7th graders explore strategies that help them to remember how to perform the needed operation...
Curated OER
Calculating Errors of Measurement
In this errors in measurement worksheet, students answer four questions to show their understanding of errors when taking scientific measurements. They determine the percent error in each problem.
Curated OER
Molecular Mass and Percent Composition
In this molecular mass and percent composition instructional activity, students complete 5 sections where they determine atomic masses of given elements, they determine formula masses for given molecules, they find the molecular mass of...
Math Mammoth
Understanding Percent
In this understanding percent activity, students fill in the missing parts for examples of number of colored parts and total numbers and use them to complete charts and rewrite sentences using the exact amount of things and percents....
Curated OER
Solve Percent Problems Using Proportions
Students explore proportions and ratios. In this solving percent problems lesson, students examine percent problems including tax and percent of change.