Curated OER
Mixing Colours
Learners 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
Cutting the Wood
High schoolers demonstrate and describe the effect of multiplying or dividing by a fraction less than or greater than one. They create and explain a variety of equivalent ratios that represent a given situation. Students draw a picture...
Curated OER
Chemical Stoichiometry Problems
In this stoichiometry learning exercise, students calculate theoretical yield and percent yield. This learning exercise has 2 problems to solve.
Curated OER
Standard Sizes of Paper
Learners measure the dimensions of different sizes of paper. Using a copy machine, they discover dilations. After enlarging and shrinking particular copies, students examine rates, ratios and percentages and discover the relationship of...
Curated OER
Flying with Fractions
Students test their knowledge of the Wright Brothers and their aircraft, and compute ratio of two numbers to determine the ratio between wing span and length of aircraft.
Curated OER
What's the Deal with Probability?
Eighth graders examine probability. Students read real life situations involving math. Upon completing probability problems, they express their answer as a fraction, decimal or percent.
Curated OER
Percents and Money
In this algebra activity, learners rewrite word problems using algebraic symbols. They solve for the amount of population or money over a period of time. There are 10 questions with an answer key.
Curated OER
Froot Loop Favorites
For this Froot Loop favorites worksheet, middle schoolers solve and complete 3 different problems that include data tables related to their Froot Loop favorites. First, they determine what fraction of the class voted for each color...
Curated OER
Molar Ratio
Pupils conduct an experiment in which they react sodium bicarbonate with hydrochloric acid to determine the molar ration between the two reactants. Students must write correct formula and a balanced chemical equation and explain how it...
Lane Community College
Review Sheets: Basic Mathematics 2
A good mix of Pre-Algebra problems, learners tackle everything from proportions and equations, to polygons and circles. The sections are broken up by topic with a list of the skills that are required to complete the questions.
Los Angeles County Office of Education
Assessment for the California Mathematics Standards Grade 7
In need of an all-inclusive seventh grade math resource? Packed full of the topics necessary for Pre-Algebra the packet includes practice problems with different difficulty levels. It works great for any supplemental use needed in the...
Curated OER
Gold Rush California and its Diverse Population
Students compare contemporary cultural differences with historical differences based on population percentage. In this cross-curriculum Gold Rush/math lesson, students analyze aspects of California's Gold Rush population and diversity...
Curated OER
Math and Your Local Restaurant
Connect ratios, fractions, scale factor, percents, and elapsed time to restaurants.
National External Diploma Program Council
Numbers
The written form for 345 is three-hundred forty-five, where as the word form for 70% is seventy percent. Here, young mathematicians read 10 sentences and write the word form of each number in the sentences.
Illinois State Board of Education
Solar System
Aspiring astronomers solve problems involving mixed units of the same attribute, including time, money, length, and area. They convert large numbers into scientific notation, then compute and compare ratios to explain why drawing...
Curated OER
Basketball
Tap into the competitive nature of teenagers as your class practices setting up and solving rational equations. This activity starts with a specific ratio of games won to games played, then asks how many more games must be played to...
Curated OER
Solving Problems with Proportions
Seventh graders explore the concept of proportions. In this proportion lesson, 7th graders play a review game involving whiteboards. Students work in groups to solve a given proportion the fastest. Students also work in pairs to solve...
Curated OER
Problem Solving Using Percentages
Students explore the concept of percentages. In this percentages lesson plan, students find the percentages of various colored m&m's in their bags. Students find the cost of items before and after a discount. Students use proportions...
Curated OER
Working Out Empirical Formulae
In this chemical compounds worksheet, students learn the steps for determining the empirical formula of a compound and then complete 3 problems.
Curated OER
Percentages: Converting Fractions and Decimals to Percents
Young scholars calculate percentages. In this percentages instructional activity, students count the total number of floor tiles covering a given space, measure a designated section of the room, and then calculate the percentage of the...
Curated OER
Using Venn Diagrams
In this Venn Diagrams worksheet, learners complete and draw 10 different Venn Diagrams to match each problem as described. First, they determine the number of students who scored above half on math or science. Then, learners compare the...
Noyce Foundation
Mixing Paints
Let's paint the town equal parts yellow and violet, or simply brown. Pupils calculate the amount of blue and red paint needed to make six quarts of brown paint. Individuals then explain how they determined the percentage of the brown...
Noyce Foundation
Sewing
Sew up your unit on operations with decimals using this assessment task. Young mathematicians use given rules to determine the amount of fabric they need to sew a pair of pants. They must also fill in a partially complete bill for...
Noyce Foundation
Photographs
Scaling needs to be picture perfect. Pupils use proportional reasoning to find the missing dimension of a photo. Class members determine the sizes of paper needed for two configurations of pictures in the short assessment task.
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