Lesson Plan
Curated OER

Designing a Fort

For Teachers 6th - 7th
Students explore the concept of right triangles. In this right triangle instructional activity, students construct a scale model of a tourist attraction similar to Fort Jefferson. Students research aerial photos of Fort Jefferson, then...
Lesson Plan
Curated OER

Plenty of Pythagoras

For Teachers 5th - 8th
Using a twelve foot knotted rope, students form a 3-4-5 right triangle. Following a discussion of observations about the lengths of the sides of the triangle, students use grid paper, scissors and a centimeter ruler to draw and measure...
Worksheet
Curated OER

The Pythagorean Theorem

For Students 9th
In this Pythagorean theorem worksheet, 9th graders solve and complete 8 different problems that include using the Pythagorean theorem to solve. First, they find the missing measure in each right triangle. Then, students make a drawing...
Worksheet
Curated OER

Geometric Mean and the Pythagorean Theorem

For Students 10th
In this geometric mean and Pythagorean Theorem learning exercise, 10th graders solve 9 problems related to determining the geometric mean by applying the Pythagorean Theorem in each problem. First, they find the geometric mean between...
Interactive
Curated OER

Pythagorean Theorem Worksheet

For Students 9th - 12th
In this online math worksheet, students use the Pythagorean Theorem to determine if given triangles are "right" triangles. This excellent resource allows the students to check their answers, and to get "hints" should they run into...
Lesson Plan
Curated OER

Pythagorean Theorem

For Teachers 8th - 12th
Students apply properties of Pythagorean to solve problems. In this geometry lesson, students identify the different parts of a right triangle using ratios. they solve problems using squares and square roots.
Worksheet
Curated OER

Pythagorean Theorem Homework

For Students 9th - 10th
In this Pythagorean theorem worksheet, students determine if given side lengths for right triangles, find the length of the missing side in right triangles, and find the length of the diagonals formed in boxes given side lengths.
Worksheet
Curated OER

Circumference and Area

For Students 10th
In this circumference and area worksheet, 10th graders solve nine problems relating to geometric shapes. They find the circumference of a circle and the perimeter of a triangle and a six-sided figure. Students also find the area of a...
Worksheet
Curated OER

Mean Twisters - Mean Proportional

For Students 9th - 10th
In this mean proportional worksheet, students work in pairs to solve right triangle problems. They use ratios and proportions of similar triangles to determine a missing length. This two-page worksheet contains 16 problems.
Worksheet
Curated OER

The Pythagorean Theorem

For Students 9th
In this Pythagorean theorem worksheet, 9th graders solve and complete 16 different problems that include using the Pythagorean theorem to solve each one. First, they find each missing measure given the hypotenuse of a right triangle....
Worksheet
Curated OER

Triangles

For Students 6th - 8th
In this triangle worksheet, students identify triangles according to the characteristics of their sides. Students identify scalene, isosceles, equilateral and right triangles. Eleven triangle problems are provided in this one-page...
Worksheet
Curated OER

Using the Pythagorean Theorem

For Students 7th - 8th
In this using the Pythagorean Theorem worksheet, students use the Pythagorean Theorem to find the missing information for ten right triangles.
Worksheet
Curated OER

Geometric Mean and the Pythagorean Theorem

For Students 10th
In this geometric mean and the Pythagorean Theorem instructional activity, 10th graders solve 16 different problems that determine the geometric mean of numbers by applying the Pythagorean Theorem. First, they find the geometric mean...
Worksheet
Curated OER

Geometry Worksheet: Pythagoras' Theorem

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

Special Right Triangles Multiple Choice

For Students 9th - 11th
In this length activity, students answer five multiple choice questions concerning lengths using rules of various figures including, triangles, rhombus, diamonds, and circles.
Worksheet
Raytheon

Understanding Triangles

For Students 6th - 8th
In this understanding triangles instructional activity, students read 6 pages of examples and explanations about identifying triangles, determining length of sides and degrees of angles, including the hypotenuse, then answer 28...
Lesson Plan
Curated OER

Triangles

For Teachers 4th
Fourth graders participate in three experiments to gain understanding of triangles. In this triangles lesson, 4th graders use pipe cleaners to create bubble pipes, basketball hoops and bingo cards to display the characteristics of...
Worksheet
Curated OER

Perimeter of Triangle Worksheet

For Students 7th - 8th
In this perimeter learning exercise, students find the perimeter of given triangles.  This two-page learning exercise contains 6 problems.  Answers are provided on the last page.
Lesson Plan
Curated OER

Geometry Regents Questions: Isosceles Triangle Theorem

For Teachers 9th - 12th
In this isosceles triangle worksheet, students solve 19 multiple choice and short answer problems.  Students use the isosceles triangle theorem to determine unknown angle measures.
Assessment
Mathematics Assessment Project

Pythagorean Triples

For Students 8th - 10th Standards
What special relationships exist in right triangles? In the high school performance task, learners investigate Pythagorean triples. They then determine rules for the perimeter and area of right triangles given the shortest side.
Lesson Plan
Curated OER

Geometric Applications

For Teachers 8th - 9th
In this geometry worksheet, students solve 5 word problems. Each of the problems involves finding one side of a right triangle. Story problems relate the Pythagorean Theorem to building ramps, shadows, and the length of a banner.
Worksheet
Curated OER

Geometry Problem

For Students 10th
In this geometry worksheet, 10th graders analyze an equilateral triangle which is divided into right triangles and determine missing lengths.  The one page worksheet contains one problem.  Answer is provided.
Worksheet
Curated OER

The Law of Cosines

For Students 11th - 12th
In this Law of Cosines worksheet, learners are asked to demonstrate the ability to apply the Trigonometric Law of Cosines and the Inverse Law of Cosines to solve for sides and angles of right triangles. 
Worksheet
Curated OER

Sixteen Angle Pre-calculus Trig Problems

For Students 11th - Higher Ed
For this angle worksheet, students solve ten multiple choice and six free response questions.  These precalculus questions cover angles, radians, and right triangles.

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