Unit Plan
Cuemath

Cuemath: Perpendicuar

For Students 3rd - 8th Standards
A comprehensive guide for learning all about perpendicular lines with definitions, how to draw them, solved examples, and practice questions
Website
University of Regina (Canada)

University of Regina: Math Central: Angle of Intersection of Two Lines

For Students 9th - 10th
Use this question response site from the University of Regina about finding the acute angle of intersection between the two given lines. The response contains a visual aide and commentary to help.
Interactive
Quia

Quia: Geometric Terms Flash Cards

For Students 2nd - 8th Standards
Do you need practice remembering or learning different geometry vocabulary words and definitions? The flash cards at this web site are for you! There is a link to a list of terms with definitions you can click if you want to see if you...
eBook
Math Planet

Math Planet: Pre Algebra: Geometry Fundamental Statements

For Students 9th - 10th Standards
Provides examples and a video lesson that introduce fundamental statements of geometry.
Whiteboard
ClassFlow

Class Flow: Blast Off With Geometry

For Teachers 3rd - 8th Standards
[Free Registration/Login Required] Learn about polygons, angles, parallel, intersecting and perpendicular lines as you journey into space. Included is an activote quiz.
Handout
CK-12 Foundation

Ck 12: Geometry: Proportionality Relationships Study Guide

For Students 9th - 10th Standards
[Free Registration/Login may be required to access all resource tools.] This study guide looks at proportionality theorems for triangles and parallel lines intersected by transversals.