Showing posts with label rays. Show all posts
Showing posts with label rays. Show all posts

Wednesday, June 26, 2013

Geometry: Angle Relationships

Pg 15. Angle Addition Postulate

The bottom half is a manipulative used to physically demonstrate the Angle Addition Postulate. The yellow rectangle was glued down 'like a pocket' for angles 1 and 2.
Pg 16. Angle Relationships
 
 

I use the layered flip book quite a bit.

 

Tuesday, June 25, 2013

Geometry: Types of Lines and Relationships

Pg. 7. Lines, Line Segments, and Rules

Original Foldable: Pocket Book


This foldable takes a looooonnnnggg time to complete. I suggest finding another strategy. Suggestions?

QUICK CHECK FOR UNDERSTANDINGS: Book foldables may be time consuming, but they can be reusable. I had my students pull out all cards from the books, mix them up, and match them back to the correct pocket. It is easier to have them compare to a neighbor and monitor their results closely. I really like the disscussions that arise from who's right and wrong.


QUICK AND EASY: 'Types of Lines' foldable:

Line

Segment

 
Ray
Perpendicular

Haven't figured out how to work parallel into this.

This is one of my favorites. I had a student struggling with this concept at Sylvan. We created this foldable in under two minutes, had a one to two minute reteach, and she mastered the concept. She still has this in her folder and enjoys teaching other students that struggle.

This is paired with another trifold foldable in my journal.


 

Pg. 8. Relationships of Segments and Distance

 

Pg. 9. Segment Bisector (this is a trifold)