CK-12 Foundation
Ck 12: Geometry: Parallel Lines and Transversals
[Free Registration/Login may be required to access all resource tools.] Apply the fact that transversals cut parallel lines proportionally.
Common Core Sheets
Common Core Sheets: Expressions & Equations 8.ee.6 Worksheets
Print or create worksheets to assess students' understanding of the connections between proportional relationships, lines, and linear equations.
Sophia Learning
Sophia: Scale Factors: Lesson 2
This lesson defines the phrase scale factor. It is 2 of 5 in the series titled "Scale Factors."
ClassFlow
Class Flow: Ratio and Proportion Geometry Review
[Free Registration/Login Required] This flipchart is a Jeopardy style review for Ratio and Proportion. Comes form the McDougal Littell Geometry book.
Alabama Learning Exchange
Alex: "Tan"
The Chinese character mark formerly known as "Tan" is the first of two lessons to introduce first grade students to geometry using tangrams. This instructional activity incorporates history, math, and language arts. In this instructional...
Purple Math
Purplemath: Ratios
Explains the basic terminology and formatting of ratios, and demonstrates how to solve typical exercises.
State Library of North Carolina
N Cpedia: Concervation Movement: Programs and Initiatives
A phenomenal growth of land trusts or conservancies, similar in focus to the Nature Conservancy began to occur statewide beginning in the mid-1980s. For instance, the Triangle Land Conservancy was established in 1983 to support native...
Purple Math
Purplemath: Proportions: Introduction
Explains the basics and terminology of proportions.
National Council of Teachers of Mathematics
Nctm: Figure This: Nctm Math Challenge Three Squares (Pdf)
If you think you can handle the Pythagorean Theorem, then this is a math challenge you should try. Explore geometric relationships and measurement in this one page activity from the NCTM Math Challenges for Families series.
Sophia Learning
Sophia: Corresponding Parts: Lesson 5
This lesson will define the phrase corresponding parts (e.g. angles, sides, etc.). It is 5 of 5 in the series titled "Corresponding Parts."
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