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.
Whiteboard
ClassFlow

Class Flow: Quadrilaterals

For Teachers 9th - 10th Standards
[Free Registration/Login Required] This lesson goes deep into properties of parallelograms and special quadrilaterals. It has class interaction, student interaction, student practice, and whole class assessment.
Unit Plan
Khan Academy

Khan Academy: Quadrilateral Types

For Students 3rd - 5th Standards
Identify quadrilaterals based on pictures or attributes. Quadrilaterals included are parallelograms, rhombuses, rectangles, and squares. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a...
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.
Lesson Plan
OER Commons

Oer Commons: Diagonals of a Rhombus

For Teachers 6th - 8th
In this instructional activity, young scholars learn how the diagonals of a rhombus are related. They use interactive sketches to learn about the properties of the angles and diagonals of squares, rectangles, rhombuses, 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.
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.
Lesson Plan
Alabama Learning Exchange

Alex: "Tan"

For Teachers K - 1st Standards
The Chinese character mark formerly known as "Tan" is the first of two lessons to introduce first grade students to geometry using tangrams. This lesson plan incorporates history, math, and language arts. In this lesson plan students...
eBook
CK-12 Foundation

Ck 12: Interactive Geometry: 4.8 Applications of Quadrilateral Theorems

For Students 9th - 10th Standards
Explore quadrilateral properties and threorems.
Graphic
Curated OER

Ic Teachers: Shapes Quadrilaterals

For Students 3rd - 8th
Are you looking for a very basic website that will explain the basic properties of a quadrilateral? Use this site to learn about the properties of a square, rhombus, rectangle, parallelogram, trapezoid, and kite. There are also some...
Interactive
Quia

Quia: Geometric Terms Matching

For Students 3rd - 8th Standards
Do you need practice remembering or learning different geometry vocabulary words and definitions? This matching game is the web site for you! There is a link to a list of terms with definitions you can click if you want to see if you are...
Lesson Plan
Alabama Learning Exchange

Alex: Geometrica Fights Back!

For Teachers 9th - 10th Standards
This activity is designed to give students practice with the properties of special quadrilaterals (parallelograms, rectangles, rhombuses, squares, trapezoids, and kites). The students are provided with a "murder mystery" sheet with...
Handout
Math Open Reference

Math Open Reference: Rhombus

For Students 9th - 10th Standards
A complete reference guide to the rhombus. It provides definitions and an interactive activity that enhances further explanation. Includes links to related topics.
Handout
Math Open Reference

Math Open Reference: Rectangle

For Students 9th - 10th
Learn about rectangles with this helpful reference tool. Provides a detailed definition, examples, and interactive activities that enhance further explanation. Includes links to related topics.
Whiteboard
ClassFlow

Class Flow: Two Dimensional Shapes Identify and Match

For Teachers Pre-K - 1st Standards
[Free Registration/Login Required] This flipchart helps students to analyze and compare various two-dimensional shapes according to the vertices, sides and parallel lines. It features "containers" created in Version 3 (can be used with...
Graphic
Curated OER

Ic Teachers: Shapes Quadrilaterals

For Students 3rd - 8th
Are you looking for a very basic website that will explain the basic properties of a quadrilateral? Use this site to learn about the properties of a square, rhombus, rectangle, parallelogram, trapezoid, and kite. There are also some...
Graphic
Curated OER

Ic Teachers: Shapes Quadrilaterals

For Students 3rd - 8th
Are you looking for a very basic website that will explain the basic properties of a quadrilateral? Use this site to learn about the properties of a square, rhombus, rectangle, parallelogram, trapezoid, and kite. There are also some...
Graphic
Curated OER

Ic Teachers: Shapes Quadrilaterals

For Students 3rd - 8th
Are you looking for a very basic website that will explain the basic properties of a quadrilateral? Use this site to learn about the properties of a square, rhombus, rectangle, parallelogram, trapezoid, and kite. There are also some...
Graphic
Curated OER

Ic Teachers: Shapes Quadrilaterals

For Students 3rd - 8th
Are you looking for a very basic website that will explain the basic properties of a quadrilateral? Use this site to learn about the properties of a square, rhombus, rectangle, parallelogram, trapezoid, and kite. There are also some...