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Lesson Plan
Curated OER

Toothpick Triangles

For Teachers 4th - 8th
Students draw a chart (included in the lesson) to use with their investigation. They review terminology of triangles and receive toothpicks to use in the lesson. Beginning with three toothpicks, students form a triangle. They complete...
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Instructional Video4:23
Corbett Maths

Showing a Triangle Is Right Angled

For Students 7th - 12th Standards
Determine whether it is right or not. Using the Pythagorean Theorem, the video shows how to determine whether a triangle is a right triangle. Pupils practice the skill in a few of the problems in the associated worksheets on the...
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Instructional Video9:23
Corbett Maths

3D Pythagoras

For Students 6th - 12th Standards
Calculate one hypotenuse then repeat. The resource provides a variety of ways for finding the length of the diagonal in a prism. Using the Pythagorean Theorem, pupils find a variety of distances in 3-D figures. The distances range from...
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Handout
2
2
EEWeb

Geometry: Shapes and Solids

For Teachers 6th - 10th Standards
An excellent resource for a geometry class, as well as for an electrical engineering course. A thorough reference sheet covers geometric shapes such as triangles, parallelograms, and circles, as well as 3-D shapes and the Pythagorean...
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Handout
Del Mar College

Formulas for Elementary and Intermediate Algebra

For Students 6th - 9th Standards
Give your scholars the support they need to work with formulas. A reference page offers definitions and picture examples of perimeter, area, surface area, volume, the Pythagorean theorem, a variety of shapes, and more. 
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Assessment
Mathematics Assessment Project

Geometry

For Students 7th - 8th Standards
Help learners find joy in facing mathematical challenges. The questions posed on this worksheet encourage young mathematicians to utilize skills learned throughout a geometry unit, and to apply themselves and persevere through problem...
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Lesson Plan
101 Questions

Taco Cart

For Students 6th - 8th Standards
Sometimes you just need a taco. Young mathematicians investigate two different paths on a beach to get to a taco cart. Completion of the task requires finding distances using the Pythagorean Theorem and considering the different walking...
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Activity
101 Questions

Snail's Pace

For Teachers 6th - 8th Standards
Time doesn't fly when you're watching a snail cross a sidewalk. Combining the concepts of the Pythagorean Theorem and the distance, rate, and time formula, learners determine how long it takes a snail to go from one corner of a sidewalk...
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Worksheet
Curated OER

Find the Missing Side of the Right Triangle

For Students 6th - 8th
In this find the missing side of the right triangle worksheet, middle schoolers use the Pythagorean theorem to find the missing side, given the other 2 lengths, for 4 triangles.
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Handout
2
2
Alaska Department of Education

Mathematics Reference Sheet

For Teachers 5th - 10th Standards
Triangles and prisms don't stand a chance when your learners use this handout full of the formulas they need to know about the different shapes. Area, volume, and surface formulas are all covered along with the standard measurement and...
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Lesson Plan
Curated OER

Special Right Triangles

For Teachers 7th - 9th
Students identify the different parts of a right triangle. In this geometry lesson, students use the Pythagorean Theorem to identify missing sides and angles of a right triangle. They work with irrational and rational roots.
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Lesson Plan
Curated OER

Slope Right Up

For Teachers 6th - 8th
Middle schoolers use triangles to find the length and slope of each side. After connecting the vertices, they add points based on their specific instructions. They use the Pythagorean Theorem to complete a worksheet to end the lesson.
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Lesson Plan
Curated OER

Geometry In the Yard

For Teachers 5th - 7th
Students are responsible for creating a border around a triangular garden spot, of which they know the measurements for two sides. They use the Pythagorean Theorem to calculate the third side and complete the garden.
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Lesson Plan
Curated OER

You Can't Go Wrong with a Right Triangle 2

For Teachers 3rd - 5th
Upper graders use the properties of right angle trignonmetry to measure objects such as the school flagpole. They solve real world problems using these properties.
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Lesson Plan
Curated OER

Pythagorean Theorem Word Problems

For Teachers 6th - 8th
Middle schoolers investigate the concept of the Pythagorean Theorem for geometry by using word problems. The challenge is for them to translate the words into the right measurements for a triangle looking for the longest side known as...
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Worksheet
Curated OER

Finding the Missing Length of the Right Triangle and Determining if a Right Triangle

For Students 7th - 10th
In this Pythagorean theorem worksheet, students determine if the six sets of given lengths form right triangles.  Next. students find the missing length for sixteen right triangles.  The solutions are provided.
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Lesson Plan
Curated OER

Pythagoras's Theorem

For Teachers 5th - 6th
Pupils explore Pythagoras' Theorem. For this geometry lesson, students complete 4 pages of equations using Pythagoras's Theorem. Pupils complete 14 problems.
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Lesson Plan
Curated OER

SuperShapes, Part 1; "Tri"ing Triangles

For Teachers 5th - 6th
An outstanding instructional activity on triangles awaits your math scholars. Learners focus on the triangle, which is the strongest of all polygons. They see the role that triangles play in the design of buildings, and learn about...
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Activity
1
1
Curated OER

Task: Grain Storage

For Teachers 7th - 10th Standards
Farming is full of mathematics, and it provides numerous real-world examples for young mathematicians to study. Here, we look at a cylinder-shaped storage silo that has one flat side. Given certain dimensions, students need to determine...
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Worksheet
Curated OER

Geometry Worksheet: Pythagoras' Theorem

For Students 6th - 8th Standards
In this Pythagorean Theorem activity, students use the Pythagorean Theorem to find the length of the unlabeled side of the right triangle. There are 8 problems all together.
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Lesson Plan
Curated OER

Diagonal Lengths

For Teachers 6th - 8th
Learners collect, organize, and analyze data while studying the Pythagorean Theorem, measure length and width of several rectangular objects, and compare the measured results to the calculated results.
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Lesson Plan
Curated OER

Tangram Perimeters

For Teachers 6th - 8th
Students work together to make figures out of tangram squares. In groups, they calculate the measurements they need and apply the Pythagorean Theorem. They complete a worksheet solving equations using the theorem and review their answers.
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Lesson Plan
Curated OER

Play Ball

For Teachers 7th - 8th
Students calculate baseball statistics and ball field dimensions. In this Pythagorean Theorem, percentages and metric conversion lesson, students are given formulas to find earned run and batting averages for White Sox baseball players....
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Lesson Plan
Curated OER

2 x 2

For Teachers 6th - 8th
Students work together to grid a 2 x 2 meter unit using the formula for the Pythagorean Theorem. After creating the grid, they identify the location of artifacts and create a map of their location. They develop a graph and table of their...