Handout
Free Math Help

Free Math Help: Special Parallelograms: Squares, Rectangles, and Rhombuses!

For Students 9th - 10th Standards
Examines special parallelograms. Students learn about a rectangle, rhombus, and square. Definitions and examples with solutions are included.
Activity
Texas Instruments

Texas Instruments: Special Parallelograms

For Teachers 9th - 10th Standards
In this activity, students will study special types of parallelograms like rhombus and rectangle, and investigate properties related to their diagonals.
Lesson Plan
OER Commons

Oer Commons: Characteristics of Parallelograms

For Teachers 6th - 8th
In this lesson, students learn more about the characteristics of parallelograms by folding paper and measuring the angles in a parallelogram. Students use a ruler and protractor to draw parallelograms with given properties. Then,...
Handout
CK-12 Foundation

Ck 12: Geometry: Parallelograms Study Guide

For Students 7th - 9th Standards
This study guide on parallelograms covers types of quadrilaterals, properties of parallelograms and theorems that describe them, how to identify parallelograms, and special types of parallelograms. It is available for download with free...
eBook
Other

Algebra Lab: Areas and Perimeters of Triangles and Special Quadrilaterals

For Students 6th - 7th Standards
Learn how to find the areas and perimeters of triangles and special quadrilaterals.
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.
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.
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...