Lesson Plan
Curated OER

Constructing Quadrilaterals

For Teachers 9th - 12th Standards
High schoolers investigate quadrilateral construction in this geometry lesson. They use Cabri Jr. to construct the different quadrilaterals from the quadrilateral hierarchy given minimal definitions. The lesson reinforces the difference...
Lesson Plan
Curated OER

Understanding Fractions

For Teachers 5th - 8th
Students add and subtract fractions and multiply and divide fractions using pattern blocks.
Handout
Quia

Ixl Learning: Area of Rhombuses

For Students 6th - 7th Standards
Brush up on your math skills relating to the area of rhombuses then try some practice problems to test your understanding.
Activity
Varsity Tutors

Varsity Tutors: Hotmath: Practice Problems: Polygons and Areas of Plane Figures

For Students 9th - 10th Standards
Twenty-five problems cover the topics of polygons and finding the area for various plane figures. They are given with each step to the solution cleverly revealed one at a time. You can work each step of the problem then click the "View...
Unit Plan
Khan Academy

Khan Academy: Area of Trapezoids

For Students 5th - 7th Standards
Practice finding the areas of trapezoids. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Activity
BBC

Bbc: Area in General

For Students 4th - 7th Standards
You can pick up some valuable pointers on how to find the area of a triangle, rectangle, and other quadrilaterals. When you finish working your way through the pages you can take an on-line "Test Bite," and check your understanding.
Handout
Math Open Reference

Math Open Reference: Area of a Rhombus

For Students 9th - 10th
Learn about the area of a rhombus with this handy reference guide. Provides a detailed definition, formulas, and an interactive activity that enhances further explanation. Includes links to related topics.
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...
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.
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...
Activity
Ministry of Education and Universities of the Region of Murcia (Spain)

Ministerio De Educacion Y Ciencia: Figuras Geometricas en El Plano

For Students 9th - 10th Standards
Interactive activities dealing with the areas of quadrilaterals figures.
Unit Plan
Wolfram Research

Wolfram Math World: Rhombus

For Students 9th - 10th
This math site explains properties of the rhombus, gives a visual aid to help with the formula given for it's area.
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...
Handout
Quia

Ixl Learning: Rhombuses

For Students 3rd - 5th Standards
Brush up on your math skills relating to rhombuses then try some practice problems to test your understanding.
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
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.
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.
Unit Plan
Cuemath

Cuemath: Quadrilaterals

For Students 5th - 8th
Explore the world of quadrilaterals and their properties. Find answers to questions like what are quadrilaterals, how they are formed, easy ways to identify them, and commonly seen quadrilaterals around us.
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
Varsity Tutors

Varsity Tutors: Hotmath: Algebra Review: Rhombus

For Students 9th - 10th Standards
Find a quick, concise explanation of a rhombus. An example is given and clearly explained.
Handout
Wolfram Research

Wolfram Math World: Squares

For Students 9th - 10th Standards
MathWorld provides multiple definitions and formulas for the mathematical term, square.
Handout
Quia

Ixl Learning: Parallelograms

For Students 3rd - 5th Standards
Brush up on your math skills pertaining to parallelograms then try some practice problems to test your understanding.
Interactive
Calculator Soup

Calculator Soup: Parallelogram Calculator

For Students 9th - 10th Standards
Calculate certain variables of a parallelogram depending on the inputs provided. Calculations include side lengths, corner angles, diagonals, height, perimeter, and area of parallelograms.
Unit Plan
BBC

Bbc: Bitesize: Maths: 2 D Shapes

For Students 2nd - 8th Standards
Learn about the properties of 2-D shapes: circles, triangles, polygons, and quadrilaterals. Includes information, video, and examples about each, with games and quizzes for reinforcement.

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