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Lesson Planet Article
Curated OER

Take Math Shopping!

For Teachers 1st - 6th
Percents, estimation, and comparative analysis become more understandable when they are used in-context at the grocery store.
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Worksheet
Helping with Math

Percentages: Calculating Percent - 2

For Students 6th - 8th Standards
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...
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Worksheet
Curated OER

Percentages: Calculating Percent-1

For Students 3rd - 7th Standards
In this percentages instructional activity, students calculate percentages in eighteen problem solving percentage equations. Students show each step of their work.
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Lesson Plan
Illustrative Mathematics

Kendall's Vase - Tax

For Teachers 6th - 7th Standards
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...
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PPT
Science Geek

Percent Composition, Empirical and Molecular Formulas

For Students 10th - Higher Ed
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...
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Lesson Plan
Curated OER

Quality Control at Kality Krunchers Dill Pickle Factory

For Teachers 9th - Higher Ed
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...
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Worksheet
Curated OER

Stoichiometry

For Students 9th - 12th
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...
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Lesson Plan
National Research Center for Career and Technical Education

Finance: Depreciation (Double Declining)

For Teachers 6th - 12th Standards
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...
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Worksheet
Curated OER

Percent of Change

For Students 8th - 10th
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.
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Lesson Plan
Curated OER

Solve Percent Problems Using Proportions

For Teachers 9th - 10th
Young scholars explore proportions and ratios. In this solving percent problems lesson, students examine percent problems including tax and percent of change.
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Worksheet
Curated OER

Percent

For Students 4th - 7th
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.
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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, 7th graders have 237 ounces of beads to weigh. Students work in groups to weigh the beads in a way so that each...
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Assessment
EngageNY

End-of-Module Assessment Task: Grade 7 Mathematics Module 4

For Students 7th Standards
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,...
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Lesson Plan
National Council of Teachers of Mathematics

National Debt and Wars

For Teachers 9th - 12th Standards
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...
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Assessment
Mathematics Assessment Project

25% Sale

For Teachers 6th - 8th Standards
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.
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Lesson Plan
Kenan Fellows

Density

For Teachers 9th - 12th Standards
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...
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Lesson Plan
Curated OER

Convert among decimals, fractions, and percents

For Teachers 7th
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...
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Worksheet
Math Mammoth

Fractions, Percents, and Decimals

For Students 6th - 7th
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.
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Worksheet
Curated OER

Molecular Mass and Percent Composition

For Students 9th - 12th
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...
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Lesson Plan
Curated OER

Popping Up Percents!

For Teachers 6th - 8th
Middle schoolers find percents and unit price using popcorn.
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Organizer
Curated OER

Decimals, Percent and Scientific Notation

For Students 9th
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...
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Worksheet
Curated OER

Calculating Simple Interest

For Students 6th - 7th
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...
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Worksheet
Curated OER

Find the Percent of Iron in Manganate (VII)

For Students 9th - 12th
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...
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Worksheet
Curated OER

Calculating Total From Percents

For Students 3rd - 4th Standards
Using this short review of finding a percentage of a number, learners can practice important skills. There are twelve questions on this worksheet.