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EngageNY
Computing Actual Lengths from a Scale Drawing
The original drawing is eight units — how big is the scale drawing? Classmates determine the scale percent between a scale drawing and an object to calculate the length of a portion of the object. They use the percent equation to find...
College Board
2018 AP® Environmental Science Free-Response Questions
Less than nine percent of all AP Environmental Science test takers scored a perfect five on the exam in 2018. Learn from the best answers as well as the common mistakes thanks to the College Board. Four questions from the test covering...
Pingry School
Determination of the Percent Hydration and the Simplest Formula of a Hydrate
Does the crystal structure of a hydrated solid determine the proportion of water absorbed, or does the application of heat change the absorption? Scholars experiment with both variables to determine the answer. They add their collected...
Polar Trec
Can Carbon Dioxide Act Like a Greenhouse Gas?
Ninety-seven percent of scientists who study climate agree that human activity is warming the planet. Learners explore carbon dioxide as a greenhouse gas, a gas causing this warming, through a hands-on experiment. Once complete, they...
Curated OER
Decimals, Percents and Fractions
Sixth graders convert decimals and percents. They observe a teacher lead demonstration of converting decimals to percents and percents to decimals. Students practice what they have seen.
Curated OER
Relating Fractions, Decimals and Percents
Students convert numbers to fractions, decimals and percents. In this conversion lesson, students convert fractions, decimals and percents to a specified form. Groups of students play a conversion index card game. A...
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.
National Wildlife Federation
Master P in the House: An All School Energy and Climate Change Plan
A person in the US uses 20 times more energy than a person in India—that's a drastic difference! The final lesson in the 12-part series goes back to the initial energy audits, analyzes which room showed the most conservation of energy,...
CK-12 Foundation
Simple Random Sampling: How Many Samples Does it Take to Change a Light Bulb?
Teach the concept of simple random sampling through an interactive lesson. Learners explore the concept by considering the strength of sampling methods. Size of the samples varies also as individuals determine which methods lead to the...
Curated OER
What Science Suggests About 'Weather Weirding'
Here is an activity that you can use to help upper elementary or middle schoolers to meet Common Core literacy standards for science and technology. Youngsters read the article on extreme weather patterns, "Weather Runs Hot and Cold, So...
Curated OER
Chemistry Midterm Practice Exam
A comprehensive practice exam, this resource covers many areas of chemistry. The test includes 71 multiple choice questions on topics such as problem solving, chemical equations, chemical formulas, thermodynamics, acids and bases, and...
Curated OER
Convert: Percent to Fraction
In this algebra worksheet, students convert percents to fractions by dividing by 100% and then reducing the fractions as necessary. There are 10 questions.
Curated OER
Changing Fractions to Percents
In this online math learning exercise, students practice changing fractions into percents. This excellent resource allows the students to check their answers, and to get "hints" should they run into difficulties. A terrific teaching tool!
Curated OER
Changing Percents to Fractions
In this percent activity, learners convert percents to fractions. This one-page activity contains 10 problems. Answers are provided.
Curated OER
Percent of a Number
In this percent worksheet, learners complete problems such as changing percents to decimals, filling in percentage charts, and more. Students complete 8 problems.
Curated OER
Changing Decimals to Percents
In this online interactive learning exercise, 5th graders change decimals to percents. They read a short explanation of the process then convert 12 decimal expressions to percent format with immediate online feedback.
Curated OER
Climate and Change: Fitting the Facts Together and Acting on Them
Learners examine climate change. For this current events lesson, students read the provided articles "Key Facts + Key Conclusions=0?" "Oil Companies Fund Climate Change Deniers," and "Acting on Climate Change Facts." Learners respond to...
Curated OER
Paying College Tuition
The investigation of exponential equation in the context of increasing college tuition costs is explored through this lessib. Students write exponential equations based on the percent of change of college tuition and use their...
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...
NOAA
Exploring Potential Human Impacts
Arctic sea ice reflects 80 percent of sunlight, striking it back into space; with sea ice melting, the world's oceans become warmer, which furthers global warming. These activities explore how humans are impacting ecosystems around the...
CK-12 Foundation
Pie Charts: Soda Party
Using the interactive, pupils create a pie chart that represents the percentage of sodas bought for a party. Individuals need to determine the percentage and number for the final variety of drinks. The learners determine how the...
CK-12 Foundation
Prices Involving Discounts: Save Money with Coupons!
Nine questions make up an interactive that challenges scholars to identify new prices after discounts. Question types include fill in the blank and multiple choice. A fully-functional tool assists participants in solving word problems....
CK-12 Foundation
Frequency Polygons: Constructing a Frequency Polygon
Connect the dots on frequency. Given a distribution table of scores on an assessment, learners create a frequency polygon by moving points on a graph to the correct frequency. The pupils use the display to answer questions about the...
CK-12 Foundation
Simple Interest
Mathematicians manipulate a mountain of money to solve six questions about simple interest. Question types include several multiple-choice and one discussion.