Two- Dimensional Figures

Big Ideas

Patterns exhibit relationships that can be extended, described, and generalized.

Geometric relationships can be described, analyzed, and classified based on spatial reasoning and/or visualization.

Essential Questions

How can patterns be used to describe relationships in mathematical situations?

How can the application of the attributes of geometric shapes support mathematical reasoning and problem solving?

How can geometric properties and theorems be used to describe, model, and analyze situations?

Prefixes in Geometry

Build a chart to ANCHOR concepts and vocabulary while teaching.

An anchor chart is especially useful while teaching 2-dimensional shapes since the whole concept is based on vocabulary knowledge. Teach the definitions of the prefixes (poly, tri, quad, hept, etc.) prior to this chapter and your students will have a much easier time identifying and classifying shapes!

Access the chart below by clicking HERE.

Classify Polygons

Video #1

Classify Polygons

Video #2

Sometimes, Always, Never

Illustrative Mathematics has a neat activity promoting reasoning with two dimensional shapes.

Students are given a list of sentences and are asked to draw examples to identify if the statement is SOMETIMES, ALWAYS, or NEVER true. Check out the example to the right.

Click HERE to access the activity.

Math Salamanders

Still need practice with measurement? Click HERE to access Math Salamanders, This website is filled with resources for 4th grade measurement in metric and standard units and so much more.

Click HERE to watch an instructional video by Learn Zillion. Practice identifying polygons by looking at the number of sides and angles that a shape has.

Click HERE to watch an instructional video by Learn Zillion. Practice identifying quadrilaterals by looking at their attributes.

https://learnzillion

Click HERE to watch an instructional video by Learn Zillion and get practice classifying quadrilaterals by looking at multiple attributes.

All About Geometry

Click HERE to interact with and learn all about Geometry at Math is Fun.com.

Click HERE to play a variety of fun and interactive Geometry Games for fifth graders by Splash Learn.com

conventional-protractor.pdf

Math Tool

Click HERE, print and cut out this protractor to practice measuring angles. Use with the measuring angles task cards.

task-cards-measuring-angles_AJDIF.pdf

CLICK HERE and have fun measuring angles with a protractor with these task cards by Super Teacher worksheets.

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Click HERE and learn all about using a protractor. Then practice how to measure angles with the virtual protractor from Math is Fun.

Click HERE for an interactive quiz on measuring angles with a protractor.

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