Teach Engineering
About Accuracy and Approximation
How accurate are robots? Groups draw lines by moving robots backwards and forwards by one rotation of the wheels. Using the appropriate formula, they determine the percent error in the length of the lines in relation to the calculated...
National Wildlife Federation
Lights, Camera, Action! Conducting an Energy Audit
Thirty percent of energy used by schools is used inefficiently! Part two in the series of 12 has groups perform energy audits of their schools as part of the Cool Schools Challenge. Each group is assigned a specific room, performs the...
Curated OER
Percentage Practice
In this percentage problem worksheet, 7th graders find the percent of a number by changing the percent to a decimal and multiplying. Students' objective is to read through each word problem and change the given percent to a decimal,...
Curated OER
Percentages
In this percentages worksheet, students problem solve five mathematical word problems associated with percents and percentages.
Curated OER
High Number Game
In this decimal and percents worksheet, students read the information about the math game for determining high numbers. Students answer two questions to help them understand decimals and percents.
Curated OER
CheMATHstry That Sticks Right to You
Students find the percent composition of sugar in the gum. In this chemistry instructional activity, students calculate percent error from the experiment. They use dimensional analysis to convert between units.
Curated OER
Coin Conversions
Fifth graders engage in the study of conversions from decimals to percents while examining monetary values. They explain the relationships between the equivalency interchanging decimals with percents. Then students write about the...
Curated OER
Number and Number Relations: Lesson 2
Eighth graders recognize or compute decimal equivalents of fractions. They recognize or compute the percent equivalent of decimal fractions. They relate fraction, decimal, and percent equivalents and recognize decimal equivalents.
Curated OER
Space Shuttle Statistics
students are the opportunity to enhance their computation skills using real life statistics associated with the Space Shuttle. Skills emphasized include working with fractions, decimals, percents, ratios and proportions, comparing units,...
Curated OER
Proportion to Percentage
In this division worksheet, 7th graders divide the proportion number given by the whole and move the decimal point to place to find the percent value.
Curated OER
Parting Ways
Young scholars 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
Gas Law Stoichiometry
In this stoichiometry worksheet, students apply the gas law to determine the percent yield and the limiting reagent for the given reaction. This worksheet has 4 problems to solve.
Curated OER
Discount and Sales Tax
In this Algebra I worksheet, students work with a family member to find the percent of discount and sales tax of three items that are on sale. The twopage worksheet contains fourquestions. Answers are not included.
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
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
Quiz: Error in Measurement
In this measurement instructional activity, students are presented with the measurements of two items. They compute the upper and lower limits of the range of tolerance for the measurements. Students find the absolute error and percent...
Curated OER
Quiz: Error in Measurement
In this error in measurement quiz, students read given problems and determine the percent of error, find the absolute error, the relative error, and identify the limits. This one-page worksheet contains ten problems.
Curated OER
Determining the Enthalpy Change of a Reaction
For this enthalpy of reactions worksheet, students use a known amount of copper (II) sulphate solution and an excess of zinc powder to calculate the enthalpy change of the reaction. Students measure the temperature change over the course...
Curated OER
Living on Your Own -- Let's Calculate the Cost!
Young scholars review basic math skills, such as addition, subtraction, multiplication, division, finding averages, and working with percentages. They see how these skills apply to real life situations.
Curated OER
Peter Rabbit Meets Charles Darwin
Students start to think of evolution in terms of populations. The class follows a cartoon scenario of a rabbit population in which there is selection and change of gene frequency. They receive copies of the scenario or the whole thing...
Curated OER
Everything You Ever Wanted to Know About Stoichiometry
In this chemistry worksheet, students identify the process of Stoichiometry and use it to calculate various chemical reactions similar to that of a recipe. In addition, they identify a connection between isoamyl alcohol and the product...
Curated OER
Proportional Reasoning
In this proportional reasoning worksheet, students use proportions to solve discount and sale problems. This two-page worksheet contains 4 multi-step problems.
Curated OER
Car Activities
In this math worksheet, students find cars in Auto Trader. They find the difference between the prices of the cheapest and most expensive cars. Students select a car they like and follow directions to buy on credit. Students complete a...
Curated OER
Additional Stoichiometry Review Problems
In this stoichiometry worksheet, students interpret a chemical equation, determine number of moles produced or mass of product, and solve for the limiting reactant for reactions. This worksheet has 25 problems to solve.
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