Curated OER
Similarity and Congruence
Learners explore the concept of similarity and congruence. In this similarity and congruence lesson plan, students cut out strips of paper and form a triangle. Learners try to prove that their triangles are congruent using the SSS...
Curated OER
One Size Fits All, Part 1
Can you tell how tall someone is just by looking at their feet? In this activity, young mathematicians measure their height, arm span, and foot size, graph their findings, and answer questions about how these measurements are related....
Curated OER
Exploring Biomes Lesson 3: Endangered Biomes
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.
Alabama Learning Exchange
"I Saw the Sine"
Discover trigonometric ratios that complement each other. Using two videos, the lesson introduces the trigonometric ratios. The class discovers the relationship between the sine and cosine of complementary angles.
Curated OER
Noise Levels, Bar Graphing, and Fractions
Students research items that can damage hearing. They explore statistics about the decibels of certain objects. From the information collected, students create a bar graph. They formulate ratios to determine what sounds are harmful to...
Curated OER
Perfection on Ice!: Math, Geometry, Fibonacci Numbers, Olympics
Students use the human body as a foundation for gaining practice in measuring angles and calculating ratios and proportions.
Curated OER
Right Triangles
In this right triangles worksheet, 10th graders solve 10 different problems that include determining the means proportionally in each right triangle. First, they use the given information to determine the measure of each line segment....
Curated OER
Bagel Algebra
Ninth graders apply proportional reasoning to a real-life situation. In this Algebra I lesson, 9th graders explore a series of equations that relate to a display sign that compares the owner’s bagels to competitors bagels. ...
Curated OER
Dilation
Tenth graders identidy and define various geometry terms, Students create exact replicas of a shape that is either smaller or larger than the original shape. Students prove that their entire shapes are larger or smaller in the same...
Curated OER
Playing with Money (From the New Zealand Point of View)
Students explore the exchange rates for five countries. They identify the units of currency of a number of countries. Students convert money amounts accurately from New Zealand dollars to another currency. They graph currency...
Curated OER
Altitude Locator
Young scholars use protractors, strings, and straws to construct a device used to determine the height of tall objects. In this applied geometry lesson, students use common objects to construct a tangent height guide. They use principles...
Curated OER
Identify Similar Figures
Students explore the concept of similar figures. For this similar figures lesson, students develop the idea that similar figures are a different size but the same shape by comparing similar rectangles. Students use patty paper to trace...
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The Golden Rectangle
Students explore the concept of the golden ratio. In this golden ratio lesson, students measure objects to determine if their measurements fit the golden ratio. Students calculate the average measurements of the class.
Curated OER
The Snack Bar
Sixth graders complete a purchase order. In this ratios and patterns lesson, 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 and quantity...
Curated OER
Using Negative Numbers
Sixth graders practice using negative numbers by completing number equations. In this math problem solving lesson, 6th graders discuss the different ways negative numbers can be used in a math problem and practice completing...
Curated OER
Mathematics In You
Students construct ratios using the hand as data. They use examples of cortical and trabecular bone found in the long bones to measure circumference, diameter, length, and weight of long bones. They perform computations using growth...
Curated OER
Soda Cans
Students identify and use properties of similar figures. In this geometry lesson, students use proportions of the sides of triangles to solve triangular relationships. They use soda can as their visuals.
Curated OER
A Newspaper?
Sixth graders use newspapers to investigate fractions. They work in small groups to categorize articles, measure them with the grid transparency, and calculate the values represented. Afterward, they write a reflective essay on the role...
Curated OER
Not Everything is More Expensive
Students compare prices and determine percent increases and decreases of items in order to make wise purchases. In this percent increases and decreases lesson plan, students calculate the amounts based on grocery store ads.
Curated OER
How Fast Is Your Car?
Eighth graders discover the relationship between speed, distance, and time. They calculate speed and represent their data graphically. They, in groups, design a ramp for their matchbox car. The goal is to see who's ramp produces the...
Curated OER
Initial Fraction Ideas Lesson 7: Overview
Third graders recognize that the larger the denominator of a fraction, the smaller the piece you have. In this fraction lesson, 3rd graders compare fractions and order them from largest to smallest. Students complete an exercise...
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Deep Sea Drilling
Students explore ocean vessels that drill the ocean floor. In this ocean drilling lesson plan, students watch videos about drilling the ocean floor and discuss. Students get into groups, go outside and use string to mark off...
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
Who's Going to the Convention?
Students practice planning budgets as they create a budget for ten employees of a company to attend a professional convention. They use the Internet, and spreadsheet software to complete their assignment.