Curated OER
Take Math Shopping!
Percents, estimation, and comparative analysis become more understandable when they are used in-context at the grocery store.
Helping with Math
Percentages: Calculating Percent - 2
Here is a worksheet on which math classes practice calculating the percentage of different numbers. Some of the percentages involve decimals, so this would not be an assignment for first-time percent calculators! You can print the...
Curated OER
Percentages: Calculating Percent-1
In this percentages instructional activity, students calculate percentages in eighteen problem solving percentage equations. Students show each step of their work.
Illustrative Mathematics
Kendall's Vase - Tax
Practice sales tax when using the activity with three solution choices. Learners can use a percent table, benchmark percent, or solve by calculating. Solutions don't show how to multiply by the decimal, but method can be added in. Great...
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
Quality Control at Kality Krunchers Dill Pickle Factory
In a hypothetical scenario, food chemists use titration to concoct a brine solution for producing the crunchiest pickles. They also analyze store-bought pickle juices. In addition to reinforcing titration techniques, the lesson requires...
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...
National Research Center for Career and Technical Education
Finance: Depreciation (Double Declining)
Of particular interest to a group of business and finance pupils, this lesson 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 of Change
For this percent of change worksheet, students calculate the change in two whole numbers. They compute the percent of change and indicate if it is an increase or decrease.
Curated OER
Solve Percent Problems Using Proportions
Young scholars explore proportions and ratios. In this solving percent problems lesson, students examine percent problems including tax and percent of change.
Curated OER
Percent
In this percent worksheet, students express fractions containing one and two digit numbers as percentages. Students complete 10 problems where they calculate fractions as percentages.
Curated OER
Ratio, Percent, & Proportions
Seventh graders explore the concept of percents, ratios, and proportions. In this percents, ratios, and proportion lesson, 7th graders have 237 ounces of beads to weigh. Students work in groups to weigh the beads in a way so that each...
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,...
National Council of Teachers of Mathematics
National Debt and Wars
Take a functional approach to the national debt. Learners collect information about the national debt by decade and plot the data. They determine whether an exponential curve is a good fit for the data by comparing the percent changes...
Mathematics Assessment Project
25% Sale
Free clothes? In the middle school assessment task, learners first consider whether four 25 percent reductions will result in a sale price of $0. Mathematicians then determine the sale price and discount percentage of such a sale.
Kenan Fellows
Density
Most scholars associate density with floating, but how do scientists determine the exact density of an unknown liquid? The third lesson in a seven-part series challenges scholars to find the mass and volume of two unknown liquids. Each...
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...
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
Molecular Mass and Percent Composition
In this molecular mass and percent composition worksheet, 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
Decimals, Percent and Scientific Notation
In this decimals, percent and scientific notation learning exercise, 9th graders solve various types of problems that range from shading an indicated part of a shape to calculating using scientific notation to express their answer. They...
Curated OER
Calculating Simple Interest
In this math worksheet, students investigate the concept of paying interest on a loan. Students read 10 problems where they look at a picture of something they are going to buy at a certain price and interest rate. Students calculate the...
Curated OER
Find the Percent of Iron in Manganate (VII)
Dilute sulphuric acid is used to oxidize manganate (VII) into manganese (II) and water. Step-by-step procedures are outlined on the worksheet as well as calculations for junior chemists to perform in their science journals. This...
Curated OER
Calculating Total From Percents
Using this short review of finding a percentage of a number, learners can practice important skills. There are twelve questions on this worksheet.