Students cut an index card to create three similar right triangles and explore the congruencies and proportions that exist. They investigate the properties of lines and concepts of congruency, similarity, tangency and symmetry of...

Students create scale drawings, and ultimately scale models, of real-world objects in this Math lesson about ratios, proportion, scaling factors, and cross products. The lesson includes ideas for cross-curricular extensions and is...

Sixth graders explore economics by solving business math problems. In this ratio and proportion lesson, 6th graders examine different meals to be purchased at a coffee shop and compare which prices make which meals a better purchase....

Students use the terms: ratio, proportion, and measurement in their description of the life of a person one inch tall.

Students examine various triangles and discuss how similar triangles have sides that are proportional. They utilize an ancient Egyptian method to determine the height of a flagpole.

Students examine how driving a hybrid car can save money and cut down on pollution.  In this hybrid vehicles lesson plan students complete an exercise that shows them how to work with proportions, percents, dimensional analysis and...

Students explore circumference and diameter. In this math lesson, students apply their knowledge of circumference and diameter to solve mathematical riddles. Students apply this knowledge to find circumference and diameter of various...

Young scholars incorporate their conceptual understanding of proportions to write a creative piece similar to the example poem.

Learners utilize triangulation techniques to determine altitudes of objects. An altitude locator is constructed and used to determine the height of a building or a tree. Tangent tables and formulas provide the ratio for the formula to...

Students explore percent increases and decreases. They calculate the percent increase and decrease. Students use math to solve problems and communicate. They apply the given formula for percent increase/decrease.

Learners explore number sense applications and discuss strategies for multiplication and division using mental math. For cross-curricular purposes, they explore causes and effects of inequality and social injustice. Students explore...

Students use the human body as a foundation for gaining practice in measuring angles and calculating ratios and proportions.

In this similar figures instructional activity, students find the missing side of the larger figure when the smaller figure's sides are given. Students complete 4 problems.

Learners estimate the total number of species in Ecuador using the capture/recapture method. They collect data about each species and act as members of a science expedition to determine the total number of species by using mathematical...

Learners of all ages investigate area and perimeter through pentominoes. In this geometry lesson plan, students calculate the are and perimeter of different geometric shapes and describe the properties of similar and congruent shapes....

Warm-up pupils' fraction muscles with a four-question quiz, then delve into a learning game designed to reinforce the concept of simplifying fractions. Based on the "I do, We do, You do" method of teaching, the lesson directly...

Setting financial goals is a common occurrence in middle school that your learners can practice using this activity. They will be able to solve for how many hours Seth needs to work to save up for a skateboard, helmet, and trip. The...

Identify the length, width, and height of prisms. Critical thinkers calculate the volume of prisms given small amounts of information. They derive the formula given the length, width and height.

Students practice how to calculate volume using mummy cases. They measure using ancient Egyptian, U.S., and metric systems. They explore how to convert measurements into different systems, and discuss ratios.

Sixth graders practice the conversion of percents and fractions. They focus on the fact of both fractions and percents are part of a whole. In the independent practice the students also work with solving proportions.

Students calculate the size of a mummy case and its contents using ancient Egyptian measurements.

Students view a quicktime video of basketball players going from Atlanta to Springfield, Mass. For this scaling lesson, students use a map to calculate the distance of the trip and the length of travel time. Students apply ratio and...

Future environmental scientists compare data from two different conservation strategies. Alone this lesson is sufficient, but as part of the Exploring Biomes unit produced by the Arizona Fish and Game Department, it becomes top-notch. 

Students discover the relationships of the lengths of the sides of right triangles and right triangles using a series of drawings on dot paper. They investigate and solve problems of standard (customary and metric units) and non-standard...