Students explore gears.  In this simple machines and ratio lesson, students view a video clip in which front and rear bicycle gears are explained. From a set of gear combinations and gear ratios, students identify high and low gear...

In this solving proportions using cross products practice worksheet, students sharpen their problem solving skills as they solve 6 story problems.

Students investigate ratio and proportion as they solve problems. In this algebra instructional activity, students calculate the percent increase on salaries and convert between decimals and percents to calculate. They rate job...

In this math test practice worksheet, students complete a total of 10 problems using a variety of concepts. Page has links to answers and additional activities.

Sixth graders complete a purchase order. In this ratios and patterns instructional activity, 6th graders work in groups to complete a purchase order for a grand opening of the school snack bar. Students use rations to figure out the need...

Knowing how to scale a recipe is an important skill. Young mathematicians determine the amount of ingredients they need to make a certain number of truffles when given a recipe. They determine a relationship between ingredients given a...

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...

Upper graders will solve equations using order of operations, and create equations that to play a fun math bowling game. They will bowl using dice to practice operations. Extensions are also included.

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...

If a 150 lb. person can comfortably eat and digest a 1 lb. burger, then how large would the person be who can comfortably eat and digest a 350 lb. burger? For a burger that size, it would take either a large person or a class of really...

If members of your class wonder where they can use the math they learn in middle school, let them discover the answer. Learners apply geometry concepts of scale and measure to calculate the costs of framing a house addition.

Collect and graph data using Microsoft Excel with your math class. They will make predictions about the number of each colored candy in a bag of M&M's, then sort, classify, count, and record the actual data before using Excel to...

Visualize methods of finding percents. Classmates find a percent of a quantity using two methods including a visual model in the 26th lesson in a series of 29. By the end of the lesson, scholars find percents given a part and the whole...

A quick problem to test your middle schoolers' knowledge of dividing with decimals. Also a good practice of unit rates, they must compute the cost of one gallon of gas when given the total amount for a fill up. Can be used as a preface...

Burning off a Big Mac® doesn't seem like a big feat until you calculate the minutes of exercise necessary to break even. Young mathematicians look at different menu items in relation to different body weights and exercises to calculate...

The Golden Ratio. The Divine Proportion. Yup. It's math and art blended into one colorful activity. Young artists combine colored tissue paper circles and parts of circles to create geometric patterns. As a bonus, kids get to figure out...

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...

Students identify ratios to compare quantities and understand proportions. In this math lesson plan, students work in groups and use facts from the Holocaust to calculate ratios and percentages.

Sixth graders explore a relevant application of ratios and proportions. They apply this concept through guided practice and interactive feedback.

Students investigate the currency exchange rate.  In this middle school mathematics lesson, student use proportions to exchange between the U.S. dollar and the euro.  Students come up with a product they would like to buy and...

Middle schoolers use cross-multiplication to find the unknown respiration rate of an astronaut. In this multiplication lesson plan, students also use the same process to find missing values in proportions.

Finding out how to calculate tax and tip is a valuable skill that all young adults should be able to do without a calculator. Learners are given a bill and asked to calculate the tax, tip, and total amount. Calculations can be exact or...

Unit rates are introduced to your math minors on this printable worksheet, complete with answers. There are only three problems: the first involves biking speeds, the second the cost of bracelets, and the third the cost of apples....

Pupils consider an individual habit and its cost. They study ratios and proportions, and use that knowledge to calculate the cost of a habit over extended periods of time. write a detailed comparison of the costs.