Curated OER
Unit 2 Quantities Review
In this quantities in chemistry worksheet, students solve 13 review problems about percent composition, significant digits, the mole, simple and molecular formulas, balancing equations, stoichiometry, limiting reagents and percent yields.
American Chemical Society
Energy Foundations
Only 10 percent of an incandescent bulb's energy is used to create light; the remaining 90 percent is heat. In the unit of activities, young chemists examine energy through hands-on activities, videos, discussions, and readings. Scholars...
Raytheon
Percentages
In this percentages worksheet, learners complete percentage word problems dealing with money, division, fractions, and more. Students complete 54 problems.
Curated OER
Percentages Introduction
In this percentages worksheet, students color 25% of 100 small squares blue, 35% red and 30% yellow. Students figure out how many squares they have left and then what percent of the 100 squares are left. Students then work out 5...
Curated OER
Percentages: Decimals To Percent
In this percentages instructional activity, 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.
Curated OER
Working with Percentages and Proportions
In this percentages and proportions worksheet, students are given percentages, they express them as a proportions, they create an equivalent ratio using "x" for the unknown portion and they cross multiply and divide to find their answer.
Curated OER
Percentages: Calculating Percent-1
In this percentages worksheet, students calculate percentages in eighteen problem solving percentage equations. Students show each step of their work.
Curated OER
The "Heart" of the Problem
Students explore mathematical operations while studying nutrition. For this physical fitness lesson, students explore calories, pulse rate, and the circulatory system. Students use mathematical data to create a healthy physical fitness...
Curated OER
Formulas from Masses
In this mass worksheet, learners determine the percentage composition of given compounds. Students write the empirical formula from the percentage composition. This worksheet has 5 problems to solve.
Curated OER
What Can We Measure About Chemicals?
In this measurement worksheet, learners read about accuracy of measurements as compared to the precision of measurements. Students answer four precision problems and solve four accuracy problems.
Curated OER
Percent To Fractions
In this math worksheet, students convert the percents to fractional equivalents through the reading of the percentage as a decimal or division.
Curated OER
Where's the Water? Stream Side Science
After a whole-class discussion of water reservoirs, ten liters of water are given to each lab group to represent Earth's total amount of water. They divide the water into smaller containers, each representing one of those reservoirs. The...
Illustrative Mathematics
Anna in D.C.
The amount of tax and tip on a restaurant bill is a common example used in percent problems. Here, learners only know the total amount paid, and they need to figure the itemized amounts. Solutions using a ratio table, using knowledge of...
Reading Through History
Patriots and Loyalists
Patriots versus Loyalists, a huge divide during the Revolutionary War in what would become the United States of America. An informative resource includes both direct instruction about the two groups and a quiz pupils take after reading...
Curated OER
Parting Ways
Students become part of the solution as they practice figuring percents. The number of men versus women present in the room and their heights can be used to form the basis of this investigation.
Curated OER
Mixing Colours
Students explore ratios and their relationships to fractions. They explain the process of identifying ratios and describe their comparison. Students write ratios as fractions and by using colons. They convert the ratios to percents.
Curated OER
Fra-Per-Dec
Learners explore the concept of ordering fractions and finding equivalent fractions. In this ordering fractions and finding equivalent fractions lesson plan, students play a card game where learners must collect 5 cards with equivalent...
Curated OER
Teaching Percentages
Students calculate percentages using the Percent Tricks method. They multiply and divide whole numbers. They count total number of candies in a bag and calculate the percent of each color.
Curated OER
Percentages and Fractions of Amounts
In this math worksheet, students change percents to fractions on five problems. Students complete a table. Students find a given percent of five numbers. They complete five story problems involving percents.
Curated OER
What's a Per-"cent"?
Students recognize the mathematical connections between fractions and percents. They develop and study graphs to make connections between their data and what it represents. They write about the connections they have discovered.
Curated OER
Fractions and Percentages
In this fractions and percentages worksheet, students are given 4 mental test each with 8 problems including finding percentages, converting decimals and fractions to percentages, and adding, subtracting and multiplying fractions.
Curated OER
Topsy-Turvy Math With Rational Numbers
Fourth graders complete a worksheet. As a whole class, 4th graders hear a lecture and complete a worksheet on factors, multiplicative inverses and reciprocals, finding the quotient of two fractions and the division of fractions to...
Curated OER
6-8 Baseball Fun: Percentages, Decimals, and Fractions
Students practice the concepts behind fractions, decimals, and percents by using sports statistics on baseball cards. In this baseball math lesson, students use fractions and estimation to calculate statistics. Students calculate batting...