Worksheet
Curated OER

Trigonometric Word Problems

For Students 10th
In this trigonometric word problems learning exercise, 10th graders solve 16 different problems that include various trigonometric situations. First, they determine at what angle a ladder makes with the ground. Then, students determine...
Worksheet
Curated OER

Law of Cosines

For Students 10th
In this Law of Cosines worksheet, 10th graders solve 10 different problems related to applying the Laws of Cosine. First, they determine the length of a side rounded to the nearest integer. Then, students determine the largest angle of a...
Worksheet
Curated OER

Tangrams

For Students 6th - 8th
In this tangram worksheet, middle schoolers form a square using tangrams.  Afterwards, they form additional shapes with tangrams.  This one-page worksheet contains 180 tangram shapes for students to create  by placing...
Lesson Plan
Curated OER

Discovering Perimeter

For Teachers 12th
Twelfth graders apply perimeter measurement to items found in newspapers and calculate the cost in terms of feet or yards. They share answers and explanations with classmates.
Worksheet
Curated OER

Different Shapes

For Students Pre-K - K
For this shapes worksheet, learners color all the big shapes blue, the middle sized shapes yellow and the small sized shapes red. Then they cut out all the shapes and sort them from big to small.
Learning
Curated OER

Shape Bingo

For Teachers 1st - 2nd
In this shapes worksheet, students cut out 6 bingo cards, color the call cards with 4 different colors and then participate in playing a bingo game with 6 different shapes.
Unit Plan
PBS

Accessible Shapes

For Teachers 6th - 8th Standards
All the 2-D and 3-D measurement work you need is in one location. Divided into three sections, the geometry lesson plans consist of visualization of three dimensions, classifying geometric figures, and finding surface area and volume....
Worksheet
2
2
K12 Reader

Geometric Shape Names

For Students 3rd - 4th Standards
Combine math and language arts in the same lesson with a reading passage about number prefixes in geometric shapes. After reading several short paragraphs about the different prefixes used in shape names, kids answer five comprehension...
App
iMagine Machine

The Land of Venn - Geometric Defense

For Students 2nd - 5th Standards
Young mathematicians use their geometry skills to save the Land of Venn in an engaging math game. A fun way to reinforce children's understanding of basic geometric figures and shapes.
Lesson Plan
Curated OER

Tile Patterns I: Octagons and Squares

For Teachers 7th - 9th Standards
This can be used as a critical thinking exercise in congruence or as a teaching tool when first introducing the concept. Four octagons are arranged in such a way that a square is formed in the middle. With this information, geometry...
Lesson Plan
Mathematics Assessment Project

Optimizing Coverage: Security Cameras

For Teachers 6th - 7th Standards
Are you being watched? Class members determine where to place security cameras protecting a shop. They then evaluate their own and several provided solutions.
Lesson Plan
Alabama Learning Exchange

Twisted Tangrams

For Teachers K - 4th Standards
Primary geometers create a picture using tangrams. In this geometry lesson, young scholars read Grandfather Tang: A Tale Told with Tangrams, cut out their own tangrams, and choose a character from the story to make using their tangram...
Worksheet
Curated OER

Angles in Polygons

For Students 10th
For this geometry worksheet, 10th graders solve problems involving quadrilaterals using the angle sum of quadrilaterals. They solve for linear pairs, opposite angle theorem and triangular angles. There are 5 questions.
Lesson Plan
Curated OER

Areas of Polygons

For Teachers 9th - 12th Standards
Young mathematicians calculate the area of polygons in this algebra lesson. They find the determinant as they calculate the areas for triangles and quadrilaterals. They also use scalar multiplication to find the determinant.
Lesson Plan
Texas Instruments

The Determinant of a Matrix

For Teachers 9th - 12th Standards
High schoolers calculate the determinant. In this algebra lesson, students find the determinant and use to calculate the area of a triangle. They calculate the area of a quadrilateral in a plane.
Lesson Plan
Curated OER

Using R&R to Teach Mathematics

For Teachers 2nd
Second graders create a shape garden. In this polygons lesson plan, 2nd graders practice making shapes using a geoboard and read the book The Greedy Triangle by Marilyn Burns.  Students also design a shape garden using...
Worksheet
Curated OER

Similar Figures

For Students 10th
For this geometry worksheet students explore similar polygons and determine measure of missing sides and angles. Students use indirect measurement with similar triangles and determine the area and volume of similar figures. The...
Lesson Plan
Curated OER

Area Unit

For Teachers 9th - 11th
Students solve the area for parallelograms,squares, rectangles, trapezoids, and triangles. For this geometry lesson, students compare and contrast two dimensional shapes and apply their properties to solving real life scenarios. This is...
Worksheet
Curated OER

Geometric Shapes and Angles

For Students 10th
In this geometry learning exercise, 10th graders review polygons and solve for the missing angles of trapezoids and isosceles triangles. There are 10 questions on this learning exercise with an answer key.
Lesson Plan
Curated OER

What Shape Am I?

For Teachers 1st
First graders analyze characteristics of geometric shapes. They identify, describe, and create simple geometric figures. They analyze characteristics of geometric shapes and determine the defining attributes of a circle,...
Lesson Plan
Curated OER

The Value of Volume

For Teachers 9th - 11th
Young scholars measure the perimeter and area of their polygons. In this geometry lesson, students calculate the volume and area using the correct tools. They calculate the time and temperature and the perimeter and side lengths of...
Worksheet
Curated OER

Forming Equations

For Students 8th - 9th
In this math worksheet, students write the equations for the interior angles of triangles and quadrilaterals. Students are given the total number of degrees in each shape and a variable value for the angles.
Worksheet
Curated OER

Make Shapes and Describe Their Features

For Students 3rd - 4th
In this shapes and their features activity, learners construct triangles, quadrilaterals, pentagons, hexagons, and heptagons using four designated shapes. In this problem solving activity, students create as many of the types of shapes...
Worksheet
Curated OER

Midpoints and Bisectors

For Students 9th - 10th
In this geometry worksheet, students calculate the midpoints of polygons using coordinate pairs. They find the  angle bisector, altitude and median of the given triangles. There are 33 questions.

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