Howard Hughes Medical Institute
Lactase Persistence: Evidence for Selection
What's the link between lactase persistence and dairy farming? Biology scholars analyze data to find evidence of the connection, then relate this to human adaptation. Working individually and in small groups, learners view short video...
Cornell University
Radical Reactions
The radical reactions of polymers seems abstract to many pupils, but this lesson turns them into a fun building game. Scholars use dice and building pieces to build polymers. Then, they determine the theoretical and experimental weight...
Curated OER
Percent of Decrease of a Number
In this percent of decrease of a number worksheet, students solve 4 problems using work space provided. Answers are included on page 2.
Curated OER
Translate Word Phrases and Sentences into Equations
Use this video to show your learners an example of how to translate word phrases into an equation to solve a real-world problem. The presenter begins with a review of how to use cross products to solve a proportion, including how to do...
Mt. San Antonio Collage
Quadratic Equations and Their Applications
Show high schoolers there is more to quadratic functions than just formulas and parabolas. Connect the math to realistic application problems with a resource that has learners consider such situations as a ball hit in the air, the...
Global Oneness Project
Freedom to Change
Here's something unusual and thoughtful: have your scholars do some pensive reflection themselves before tackling how such meditative techniques are used in prison rehabilitation programs. They watch the...
Curated OER
X Is What Percent Of Y?
In this percents worksheet, students complete 2 multiple choice questions where they find the percent of a number. Answers are given online.
Curated OER
Percent Mass, Moles, and Avogadro Worksheet
In this moles activity students complete a set of calculations to find how many atoms and moles are in different substances.
Curated OER
Percentages
In this percentages worksheet, 6th graders solve and complete 13 various types of problems. First, they convert the percentages to fractions and simplify. Then, students convert the percentages to decimals. In addition, they find the...
Alabama Learning Exchange
The World of Integers
Review operations related to rational numbers and integers using the include PowerPoint presentation, "Interesting Integers." Young mathematicians classify rational numbers as being natural, whole, or integers and read an article about...
Social Media Toolbox
Twitter Time
Tweet all about it! Junior journalists explore the Twittersphere to determine its effectiveness as a news broadcasting tool in the 12th installment of the 16-part Social Media Toolbox. Participants follow and record their observations of...
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.
Curated OER
Summer Intern
Your young apprentices build a function describing the percent concentration of salt in a brine. The rational function is then related to the parent function, y= 1/x, and graphed. Finally, the apprentices predict the amount of fresh...
Read Works
Canine Courage
Did you know dogs had an important job on September 11th, the day airplanes took down the World Trade Center? Learn more about the furry heroes with a three-page informational read designed to aid pupils in answering 10...
Curated OER
Fractions XIV: Multiplication of Fractions
This PowerPoint instructs students on how to solve a fraction multiplication problem. The slides address the steps in solving a fraction multiplication problem, along with examples. The steps are clearly stated and easy to understand....
Curated OER
How Hard Were the Times? Investigating the Meaning and Significance of the Great Depression
Students examine causes and effects of Great Depression and its significance on twentieth-century life, analyze value of various types of historical information, specifically primary sources, and relate events, issues, problems, and...
Curated OER
Candy Machine
Using the concept of a candy vending machine, young mathematicians explore the sugar ratios found in different types of candy. Using the provided information, class members calculate and compare different ratios in...
Virginia Department of Education
Laboratory Safety and Skills
Avoiding lab safety rules will not give you super powers. The activity opens with a demonstration of not following safety rules. Then, young chemists practice their lab safety while finding the mass of each item in a mixture and trying...
California Academy of Science
Rapid Brainstorming: How Can We Conserve Our Water Resources?
Water covers around 75 percent of the earth, yet humans struggle to find enough fresh water to live. The fourth of 10 lessons focusing on Fresh Solutions requires brainstorming. Young scientists consider various problems related to fresh...
Curated OER
Going Up Or Coming Down
Young scholars find the percent of increase or percent of decrease. Through a teacher demonstration, they examine the methods of calculating percentages. Students solve real life problems.
Curated OER
Unit 5: Worksheet 4 - Proportion
In this proportion worksheet, students use proportions to find the length of a missing side of similar triangles. They find percent of a number, and solve real life story problems with percents and discounts. This two-page worksheet...
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
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...
Curated OER
Fractions, Decimals and Percentages
In this fractions, decimals, and percentages worksheet, students compare and order given amounts. Students identify equivalent numbers. They calculate the percent of a given number and convert from a fraction to a percent and to a...