Similar Right Triangles Teacher Resources
Find Similar Right Triangles educational ideas and activities
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Proofs into Practice: The Pythagorean Theorem in the Real World
As an introduction to the lesson, learners verify the Pythagorean theorem with a hands-on proof. Then, pupils use the theorem to determine whether three side lengths could form a right triangle and choose one of two real-life situations to examine using the theorem.
8th - 12th Math 146 Views 214 Downloads CCSS: Designed
Applying the Pythagorean Theorem in a Mathematical Context
Participants who use this resource will apply the Pythagorean Theorem to show whether or not the shaded triangle inscribed in a rectangle is a right triangle. Once all of the sides on the shaded triangle are found, it is important that your class understands that the largest side may be the hypotenuse.
7th - 9th Math 36 Views 37 Downloads CCSS: Designed
Running on the Football Field
Make your class into Pythagorean theorem fanatics in no time. What a great resource to get your sports enthusiasts into the math game! Read the commentary so you can you can strategize how to apply the three math practices.
7th - 9th Math 42 Views 50 Downloads CCSS: Designed
Geometric Mean and Indirect Measurement
How do you measure the height of really tall building? Using similar triangles, and proportions, young geometers try to determine the height of a nearby building. Then they explore the concept of a geometric mean and how it relates to their measurements.
9th - 12th Math 3 Views 19 Downloads CCSS: Designed
In this similarity worksheet, students solve and complete 7 different problems that include determining various dimensions of mirrors shown. First, they find the length of the diagonal of the large mirror in the diagram. Then, students solve the problem and explain what steps they took to complete it and why.
7th - 8th Math 3 Views 13 Downloads
Proving Slope Criteria for Parallel & Perpendicular Lines
This lesson launches with learners graphing the fourth vertex of a given rectangle, and finding the length and slope of one of its sides; and ends with learners writing a summary sheet for parallel and perpendicular lines. In between, collaborative groups rotate through four stations containing investigations using patty paper, graph paper, similar right triangles, distance formula, calculators, and geometers’ sketch pad.
7th - 11th Math 16 Views 8 Downloads CCSS: Designed
Mt. Whitney to Death Valley
This is an intriguing problem that brings together real-world data, technology, and mathematical problem solving. If visibility wasn't an issue, could you see from the highest point in the lower 48 states, Mt. Whitney, to the lowest point, Badwater Basin in Death Valley?
9th - 12th Math 19 Views 20 Downloads CCSS: Designed
Eighth graders investigate direct and indirect measurement. In this eighth grade geometry and measurement instructional activity, 8th graders investigate a variety of methods for measuring the height of a tree. Students investigate and use the properties of similar triangles and special right triangles to solve application problems.
8th Math 3 Views 11 Downloads
Geometry Review Exam
In this geometry review instructional activity, 10th graders solve and complete 100 various types of problems studied in geometry. First, they find the slope-intercept form of a line passing through two points and parallel to a given line. They also find the length of the leg of a right triangle.
10th Math 18 Views 18 Downloads
Study various types of mathematical models in this math lesson. Learners calculate the slope to determine the risk in a situation described. They respond to a number of questions and analyze their statistical data. Then, they determine and graph a curve that best fits each situation given.
9th - 12th Math 7 Views 40 Downloads
Discovering AA Similarity Discovery
Your collaborative learners will create, analyze, and then discover the Angle-Angle criterion for similar triangles, as well as experience many of the math practice standards in a very well-organized instructional activity. They will explore the Angle-Angle criteria further by finding supporting examples that justify the rule holds true for all types of triangles.
9th - 11th Math 3 Views 4 Downloads
I Can Determine The Height Of A Rocket!
Maybe your class wouldn't be taking a field trip to a rocket launching site, but the ideas presented here could be used for a new by clock tower, tree, or telephone pole. Learners use trigonometric ratios to determine the heights of tall structures.
9th - 12th Math 5 Views 37 Downloads CCSS: Designed
Mathematics Within: Slope and Triangles
Learners discover a method for determining the slope of a line by creating and comparing similar triangles. They fold coordinate grids to make three similar triangles then measure the sides to compare the relationships between the triangles.
8th - 10th Math 30 Views 94 Downloads CCSS: Adaptable
Finding Slope of a Line from Graphs, Tables, and Ordered Pairs
Middle schoolers explore the concept of slope in numerous ways and start to look at simple linear equations. They describe the slope in a variety of ways such as the steepness of a line, developing a ratio, using graphs, using similar triangles, and through ordered pairs.
7th - 9th Math 60 Views 400 Downloads CCSS: Adaptable
Similar Parts Investigation
How tall is that flagpole? Your pupils might want to stand on each other's shoulders to answer this, but this activity is all about using the math knowledge they already possess. Using right triangle trigonometric ratios (SOH CAH TOA) and the Pythagorean theorem, young geometers solve real-world problems.
9th - 11th Math 16 Views 29 Downloads CCSS: Designed
Similar Right Triangles-Introductions to Trigonometry
In this geometry worksheet, learners examine similar right triangles as the basis for the foundation of trigonometry. Students define the basic trigonometric functions and use a calculator to find the trigonometric value of an angle. The four page worksheet contains forty-six problems.
9th - 10th Math 22 Views 211 Downloads