Lesson Plan
Curated OER

Pythagorean Theorem and Problem Solving

For Teachers 9th - 10th
Students use the Pythagorean Theorem to solve problems. In this geometry lesson plan, students identify the properties of a right triangle. They find the missing side and angles of a right triangle.
Lesson Plan
Curated OER

Compass Designs

For Teachers 8th - 10th
Students investigate the properties of two and three dimensional objects. In this geometry lesson, students differentiate polygons based on similarity and congruence. They make observation and interpret the data.
Lesson Plan
Curated OER

CSI Investigation of Congruence and Similarity

For Teachers 9th - 12th
Students differentiate between similarity and congruence using polygons. For this geometry lesson, students label triangles based on their properties. They find missing sides and angles using the interior sum theorem.
Lesson Plan
Curated OER

Make a Box

For Teachers 10th - 12th
Learners use specific dimensions to create a box. In this geometry lesson, students analyze the different properties of two and three dimensional shapes. They make conjectures and use it to solve problems.
Lesson Plan
Curated OER

Triangles in Architecture

For Teachers 10th - 12th
Students find triangles in the real world. In this geometry activity, students analyze and identify properties of two and three-dimensional objects. They differentiate between similarity and congruence.
Lesson Plan
Curated OER

The Search for Pythagoras' Treasure

For Teachers 8th - 10th
Students identify and define properties of triangles. For this geometry lesson, students identify the missing sides and angles of right triangles. They use the rules of the Pythagorean Theorem to solve their problems.
Lesson Plan
Curated OER

Watts Up Doc?

For Teachers 9th - 12th
Students examine the wattage of a light bulb using math. In this algebra lesson, students find the inverse square of given parameter. They work in groups collecting and analyzing data.
Lesson Plan
Curated OER

Geometric Figures and the Coordinate Plane

For Teachers 6th
Sixth graders explore geometric figures. In this geometry lesson, 6th graders manipulate properties and relationships of geometric figures to identify objects on the coordinate planes and describe where figures sit on the planes.
Lesson Plan
Curated OER

Triangle Classification

For Teachers 9th - 12th
Students classify different types of triangles. In this geometry instructional activity, students identify and use properties of triangles. They differentiate between isosceles and equilateral triangles.
Lesson Plan
Curated OER

Half Angle

For Teachers 9th - 12th
Students calculate the solution using half angles formulas. For this calculus lesson, students identify the different properties of a triangle using trigonometric properties. They identify the mean, altitude and angles of a triangle.
Lesson Plan
Curated OER

Light Bounce

For Teachers 9th - 11th
Learners solve problems involving triangles. In this geometry lesson plan, students apply properties of triangles to find the missing angles and sides. They identify angles of parallel lines cut by a transversal.
Lesson Plan
Curated OER

Diagonals to Quadrilaterals II

For Teachers 8th - 10th
Students identify the properties of different polygons. In this geometry instructional activity, students find the slope of a line and calculate the distance between two lines. They differentiate between similar and congruent polygons.
Lesson Plan
Curated OER

Mirror Tool

For Teachers 9th - 12th
High schoolers define properties of polygons. In this geometry lesson, students differentiate between similar and congruent polygons. They identify and use the properties of solids to solve problems.
Lesson Plan
Curated OER

Combining Foods

For Teachers Pre-K - 2nd
Students explore addition. For this math lesson, students discover how addition and subtraction are related. Students model related addition and subtraction facts.
Lesson Plan
Pennsylvania Department of Education

Practice Makes Perfect

For Teachers Pre-K - 2nd
Learners study fact families. In this math instructional activity, students use fact families to play a game of concentration. Learners identify subtraction facts they need to learn.
Lesson Plan
Curated OER

Geo-Critters (Geometry Critters)

For Teachers 2nd - 5th
Young scholars read the book The Math Curse by Jon Scieszka and study geometry. In this geometry lesson, students identify geometric shapes and their properties. Young scholars create a geo-critter.
Lesson Plan
Curated OER

Why We Study Trigonometry

For Teachers 10th - 11th
Students investigate the different properties of trigonometry. In this precalculus lesson, students find the six different identities of trigonometric ratios. They relate the ratios to that of a right triangle and apply it to real life...
Lesson Plan
Curated OER

Exploring Areas of Irregular Polygons

For Teachers 9th - 12th Standards
Young scholars solve for the area of different polygons. In this geometry lesson, students identify and differentiate between regular and irregular polygons. They use properties of irregular polygons to solve problems.
Lesson Plan
Curated OER

Law of Sines and Cosines

For Teachers 10th - 11th
Students solve problems using sine and cosine. In this precalculus activity, students apply the properties of sine and cosine to solve non-right triangle problems. They use Heron's Law to find the area of a shape.
Lesson Plan
Curated OER

Investigation - Who is Right?

For Teachers 3rd
Third graders explore mathematics by solving problems in groups. In this math functions lesson, 3rd graders demonstrate their understanding of addition and subtraction by completing two digit math problems. Students define a list of math...
Lesson Plan
Curated OER

The Entrepreneur's Game

For Teachers 12th
Twelfth graders explore the basic principles of the US free enterprise system. They examine the basic principles of the US free enterprise system including profit motive, voluntary exchange, private property rights, and competition.
Lesson Plan
Curated OER

Magical Shapes

For Teachers 1st
First graders practice manipulating shapes into different locations. They see that even though shapes may look different when they are moved into different locations, the shape remains the same with the same properties. They make...
Lesson Plan
Curated OER

Mathematics: Prime and Composite Numbers

For Teachers 6th
Sixth graders explore how to apply the commutative property and the rules of divisibility. They examine the difference between prime and composite numbers.
Lesson Plan
Curated OER

Inequalities Involving Absolute Value

For Teachers 9th - 12th
Young scholars solve and graph inequalities involving absolute value. They discuss and identify the basic properties of inequalities, and solve basic examples.

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