High schoolers explore the concept of paleoclimatological proxies.  In this paleoclimatological proxies instructional activity, students explain isotope ratios in deep water coral samples.  High schoolers write a paragraph...

Hands-on and real-world applications are great ways to teach mathematical concepts. Creative thinkers examine how ratios are used to create scale models of buildings and structures. They practice working with ratios by looking at a map...

Seventh graders explore the concept of ratios and proportions. For this ratios and proportions lesson, 7th graders work in groups to measure their heights and their arm span. Students compare their height to their arm span. Students make...

Fifth graders investigate the mathematical concepts of ratio and probability using created spinners and data collection techniques in this Math lesson for the fifth grade classroom. This lesson can be accomplished as an individual or...

Students explore and experiment with the concept do new kinds of insects appear after soil modification. They assess and review scientific methods of observation, predicting, variables, math skills, ratio, proportions, graphs and the art...

Try not to blind anyone with science by following the safety rules. The lesson encourages scholars to form an ionic compound from magnesium and chlorine. Then they determine the empirical formula and determine the mole ratio and percent...

Rescue animals in the zoo by applying math concepts. Groups of learners solve three missions involving oxygen, food, and climate control. Each group selects an animal from one of four bio-domes.

What is a chemist's favorite plant? Stoichiome Tree! Scholars produce hydrogen gas by reacting magnesium with hydrochloric acid. Then they calculate the molar volume of the gas produced before answering assessment questions. 

If mathematicians know the secret to compound interest, why aren't more of them rich? Young mathematicians explore compound interest with exponential functions in the twenty-seventh installment of a 35-part module. They calculate future...

In this chemistry worksheet, students examine a concept in science and then use the knowledge in application by conducting an experiment.

What killed the dinosaurs and how do scientists know? Your high schoolers can examine these fascinating questions with a geochemical lens using the engaging 33-minute video, the accompanying data interpretation, and some thoughtful...

Students use ratio and proportions to adjust recipe size.  In this middle school mathematics lesson, students investigate Native American food and adjust the recipe size for said foods to the number of servings needed to feed the...

Explore rational numbers with the young mathematicians in your class. They will investigate decimals, fractions, and percents before ordering and comparing rational numbers. This multi-day unit includes differentiation activities and...

Here is the first of two printable ratio worksheets. For the first three problems, pupils count the numbers of two different objects and simply write down the ratios. There are then four problems in word form for which they also write...

Students examine the use of variable and ratio in everyday situations including figuring out the gear ratios for the gears on a 12 speed bike. They use the bubble sort technique to write a computer program which will determine the...

Students investigate ratios of various objects.  For this ratios of various objects lesson, students draw pictures on graph paper and then dilate or shrink the image.  Students determine the ratio of their pictures. ...

Students explore the means and extremes of a proportion, the how to make a scale drawing.

It's just a sign of the times. Given a billboard with distances and travel times to two different interstate highway junctions, learners determine the speed limit. They must incorporate the concepts of distance, rate, and time with that...

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...

Only in math problems do people buy 18 cans of tennis balls and no one wonders why. Scholars solve for the number of total tennis balls given the ratio of balls per can. This and other ratio word problems in a PowerPoint from Grade 6...

Ancient Egyptians sure knew their trigonometry! Pupils learn how the pyramid architects applied right triangle trigonometry. When comparing the Pythagorean theorem to the trigonometric ratios, they learn an important connection that...

Examine ratio and scale through coordinate geometry. Scholars use two diagrams of different scale to calculate perimeter and area. Then, individuals use the perimeters and areas to find ratios.

Food companies understand how to use math to their advantage. Learners explore the math related to the packaging and serving size of yogurt. They then use unit analysis and percent values to make decisions on the product development.

Your breakfast cereal is a good source of math practice. Young mathematicians apply ratios and percents to analyze the amount of protein and carbohydrates in two brands of cereal. They complete a worksheet to answer several questions on...