Lesson Plan
Curated OER

Creating Parallelogram

For Teachers 9th - 12th Standards
Learning how to define vocabulary words related to solving parallelograms will assist your learners in identifying different parallelograms. They use the navigator to view different shapes created by moving the parallelogram around.
Lesson Plan
Curated OER

The Quirky Quadrilateral

For Teachers 4th
Fourth graders identify and classify different triangles and quadrilaterals. Then they demonstrate an understanding of plane and solid geometric objects and use this knowledge to show relationships and solve specific problems. Students...
Lesson Plan
Curated OER

Angles, Triangles, Quadrilaterals, Circles and Related

For Teachers 6th - 8th
Middle schoolers classify angles. For this angles lesson, students explore the characteristics of angles, triangles, quadrilaterals and circles. They identify polygons and sing a classifying angles song. Middle schoolers participate...
Lesson Plan
Curated OER

Tetrominoes Cover-Up

For Teachers 3rd
Third graders compare and contrast the attributes of two-dimensional shapes. Using a tetrominoes game, they create two-dimensional shapes to cover up a game board. At the conclusion of the game, 3rd graders discuss the patterns they...
Worksheet
Curated OER

Which figure?

For Students 2nd - 4th
In this 2D figure worksheet, students pick which figure they are given. Students choose from 4 figures in each of the 4 problems they are asked.
Lesson Plan
Curated OER

Mondrian, Math, and Amazing Colors

For Teachers K - 2nd
Students study geometric shapes, lines, and the primary colors as they create Mondrian-like art prints.
Lesson Plan
Curated OER

Ovals, Rectangles, Squares, and Triangles

For Teachers 3rd - 5th
Students identify geometrical shapes displayed in photographs of everyday objects in a metropolitan setting.
Unit Plan
CK-12 Foundation

Ck 12: Geometry: Area and Perimeter of Rhombuses and Kites

For Students 9th - 10th
[Free Registration/Login may be required to access all resource tools.] This concept teaches students to calculate the area and perimeter of rhombuses and kites. Students examine guided notes, review guided practice, watch instructional...
Unit Plan
CK-12 Foundation

Ck 12: Geometry: Area and Perimeter of Rhombuses and Kites

For Students 9th - 10th Standards
[Free Registration/Login may be required to access all resource tools.] In this lesson students calculate the area and perimeter of a rhombus or kite. Students examine guided notes, review guided practice, watch instructional videos and...
Activity
Analyze Math

Analyze Math: Rhombus Problems

For Students 9th - 10th Standards
The geometry tutorial explores the definition, area, and properties of a rhombus. The activity has several examples with detailed solutions.
Handout
Geometry Help

Geometry Help: Rhombus

For Students 9th - 10th Standards
Explains the basic concept of a rhombus with step-by-step instructions and methods for solving specific problems on your own relating to this topic.
Lesson Plan
Better Lesson

Better Lesson: Rockin' Rhombuses!

For Teachers K Standards
Rhombus, the mathematically correct term for "diamond" is the focus of this interactive lesson.
Handout
CK-12 Foundation

Ck 12: Geometry: Perimeter and Area Study Guide

For Students 9th - 10th Standards
[Free Registration/Login may be required to access all resource tools.] This study guide looks at the definitions and units for perimeter, area, and circumference, and at the perimeter and area of different shapes, including regular...
PPT
Sophia Learning

Sophia: Coordinate Geometry of Rhombi

For Students 9th - 10th
This lesson will demonstrate how to use slope, midpoint, and distance formulas to determine from the coordinates of the vertices if a quadrilateral is a rhombus in a coordinate plane.
Activity
CK-12 Foundation

Ck 12: Area and Perimeter of Rhombuses and Kites

For Students 5th - 7th
[Free Registration/Login Required] Students are given the two diagonals of a kite of rhombus and are to determine the area and perimeter. Click challenge me to answer practice questions and click learn more to watch a video.
Interactive
Calculator Soup

Calculator Soup: Rhombus Calculator

For Students 9th - 10th
Calculate certain variables of a rhombus depending on the inputs provided. Calculations include side lengths, corner angles, diagonals, height, perimeter, and area of a rhombus.
Handout
National Council of Teachers of Mathematics

The Math Forum: Ask Dr. Math: Rhombus

For Students 9th - 10th Standards
This is a very brief look at the rhombus, which is a quadrilateral shape with four equal sides. Features include a JavaSketchpad that allows you to manipulate the shape.
eBook
Math Planet

Math Planet: Geometry: Parallelogram, Triangles Etc

For Students 9th - 10th Standards
Resource examines the area of geometric solids through examples and a video lesson. [0:39]
Handout
CK-12 Foundation

Ck 12: Geometry: Triangles and Quadrilaterals Study Guide

For Students 9th - 10th Standards
[Free Registration/Login may be required to access all resource tools.] This study guide reviews the formulas for area and perimeter of triangles and different kinds of quadrilaterals.
eBook
CK-12 Foundation

Ck 12: Interactive Geometry: 4.7 Theorems About Quadrilaterals

For Students 9th - 10th Standards
Use quadrilateral properties that are unique to parallelograms to prove that the given shape is a parallelogram.
Unknown Type
That Quiz

That Quiz: Practice Test: Shapes

For Students 3rd - 8th Standards
This resource provides a practice geometry quiz for students to use.
Handout
Geometry Help

Geometry Help: Squares

For Students 9th - 10th Standards
Explains the basic concept of a square with step-by-step instructions and methods for solving specific problems on your own relating to this topic.
Unit Plan
Math Is Fun

Math Is Fun: Interactive Quadrilaterals

For Students 3rd - 8th Standards
Resize and rotate different types of quadrilaterals--square, rectangle, rhombus, trapezoid, and kite--while learning the definitions of these different shapes and labeling the angles and diagonals. CCSS.Math.Content.3.G.A.1 Understand...
Unit Plan
CK-12 Foundation

Ck 12: Geometry: Parallelogram Classification

For Students 9th - 10th
[Free Registration/Login may be required to access all resource tools.] Classify a parallelograms as a rhombus, rectangle, or square.

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