Curated OER
Interest Word Problems
In this interest worksheet, 7th graders solve 10 different problems that include word problems and determining interest rates. First, they determine the principal paid on a certain amount of money borrowed. Then, students determine how...
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...
Helping with Math
Ratio and Proportion: Rates
Unit rates are introduced to your math minors on this printable worksheet, complete with answers. There are only three problems: the first involves biking speeds, the second the cost of bracelets, and the third the cost of apples....
Curated OER
Determining the Percolation Rate of Soil
Students discover how water moves through different types of soils. In groups, they use the same sample from a previous activity and empty it into a milk carton in which they have layered with cheesecloth to determine the percolation...
Curated OER
Challenge Discussion Sheet 8
In this differential worksheet, students compute the rate a boat is approaching a dock when given the height and length of a rope. They find the rate the angle formed when a rocket is launched at given distances above the ground....
Curated OER
Percentages: Decimals To Percent
In this percentages worksheet, students write twelve decimals as percentages and twelve percentages as decimals. Students check their answers with the key when they are finished.
Curated OER
Percentages: Fractions To Percent
In this percentages worksheet, students write eighteen fractions as percentages. Students problem solve each fraction as a percentage.
It's About Time
Oil and Gas Production
Would you consider a power failure a current event? This lesson uses multiple experiments, guided inquiry activities, and group discussions to cover the topics of oil and gas production. This is the seventh lesson in a series of eight.
Curated OER
Four Decimal, Fraction, and Percent Activities
In this fraction activity, students solve problems presented in four different activities. The activities cover percentages, fractions, decimals, currency exchange, and value added tax. A card "game" is one of the activities. Partial...
Curated OER
The Discount is Right
Students visit various websites and calculate various prices of five items. They estimate the sale price of five items using the original price and discount rate, use percent to calculate the rate of discount and the original price, and...
Curated OER
Carbon Dioxide Increases
In this atmospheric carbon dioxide worksheet, students use a graph of the Keeling Curve showing the increase in atmospheric carbon dioxide since 1958 to solve 6 problems. They determine the rate of increase, the find the percentage of...
Curated OER
What Kind of Garden Would Grow in Our Schoolyard?
Students perform soil tests for pH, nitrogen, phosphorus, potassium, composition and water percolation rate and assess the conditions in the schoolyard.
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.
Curated OER
Calculating Simple Interest
In this math activity, 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
Cereal Box Redesigns
Learners examine cereal boxes for nutrition information. In this nutrition lesson, students redesign cereal boxes to reflect their nutritional value. Learners understand that some cereals contain too high a percentage of sugar and not...
Curated OER
Task: Grain Storage
Farming is full of mathematics, and it provides numerous real-world examples for young mathematicians to study. Here, we look at a cylinder-shaped storage silo that has one flat side. Given certain dimensions, students need to determine...
CK-12 Foundation
Prices Involving Sales Tax: Proper Tipping
A five-question interactive challenges mathematicians to find a correct tip and total amount using percents five, 12, and 18. A tool with moveable pieces assists participants in locating answers. Types of questions include...
Curated OER
The Business of Interest
Students learn about finance and money management and use math to solve problems, communicate, and explore real life situations as they deal with banks. In this financial management lesson, students apply their math skills to real life...
Federal Reserve Bank
So How Much Are You Really Paying for that Loan?
Loans are rarely provided without a cost. Pupils evaluate the high cost of using a payday loan or payday advance through discussion and worksheets, and finally work in groups to develop short public service announcements that outline the...
Curated OER
Decimal Baseball
Young mathematicians represent recorded information in decimal form. For this decimals lesson, learners play a "classroom friendly" basketball game in which pupils take 10 shots. Number of shots made out of 10 is recorded as a fraction...
Concord Consortium
Rule of 72
Find an easier way to double it. Using the price of an item and the Consumer Price Index, learners determine how long it will be for the price to double. Scholars calculate the length of time it would take for the price to double using a...
Curated OER
Proportional Taxes
Students are able to define and give an example of a proportional tax and the impact that it can have on different income groups and explain how a proportional tax takes the same percentage from all tax groups.
Curated OER
The Art of Interpreting Percent
Ddefine the relationships between fractions, decimals, and percentages in a series of lessons. The class practices converting between these three versions of a number. They also find the common factor of a numerator and denominator and...
Illustrative Mathematics
Lake Algae
Introduce learners to exponential growth with this real-world problem about algae that is rapidly spreading across a lake in a city park. The task presents the rate of growth and an end value and asks learners to determine what happened...