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...