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Congruent Triangles - Unit 4: Triangles & Congruency Bellwork / Do - Nows

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4 MB|72 pages
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Congruent Triangles Unit Four: Triangles and Congruency Bellwork - Bellringers - Station Cards

There are five different documents in this zip file:

The first two are a set of 19 Bellwork ( sometimes called bell ringers, warm-ups, entrance tickets or class starters) questions that are presented in two different ways.

Way one: Full sized 8 1/2 by 11 size pdfs for projection.
Way two: Double printed on 8 1/2 by 11 sheets of paper so that they can be handed out as half sheets of paper to students.

They can also be used as exit tickets or printed and used in stations.

Next you will find a 2 versions of a fully typed and annotated teacher answer key.

Way one: Full sized 8 1/2 by 11 size pdfs for projection.
Way two: Double printed on 8 1/2 by 11 sheets of paper so that they can be handed out as half sheets of paper to students.

I have typed out all of the solutions in text boxes that are easy to read and include notes/explanations when needed.

Finally you will find a weekly student answer/recording sheet if you want to save paper and have students work off of the projected image.

The problems presented are a mixture of diagram based, word problems and writing questions!

Since the thumbnails only give a small idea what is included, please download the preview for a good view of slides and handouts!

Concepts covered:
1. Unit Introduction: Writing About What You Know
2. Double Classifying Triangles
3. Using Triangle Classifications to Find Measures
4. Classifying Triangles in the Coordinate Plane
5. Angles in Triangles (No Algebra)
6. Angles in Triangles (Algebra Based)
7. The Exterior Angle Theorem: No Algebra
8. The Exterior Angle Theorem: Algebra Based
9. Isosceles Triangles (Naming Parts)
10. Solving Isosceles Triangles (No Algebra)
11. Solving Isosceles Triangles (Algebra Based)
12. Congruent Triangles (Naming Parts)
13. Congruent Triangles – Algebra Application
14. Methods of Proving Triangles Congruent (1)
15. Methods of Proving Triangles Congruent (2)
16 Triangle Congruency Proofs (1)
17. Triangle Congruency Proofs (2)
18. Triangle Congruency Proofs (3)
19. Unit Closure: Writing About What You Learned

My students walk in and start working on these immediately while I am taking attendance and walking around to check in homework. It is a great way to get them started and to minimize the wasted time at the start of class.

We go over the answers once they are finished. From start to finish it takes about 10 minutes depending on how much discussion time you wish to take.

I have found it to be incredibly helpful as way for my students to review concepts from prior units and the prior day. Since I have them all done for the entire unit ahead of time I am ready to go and save a GREAT deal of time!

This a great continuation of a unit on Triangles and Congruency. If you are looking for other resources, please check out the entire unit bundle at:

Triangles and Congruency Unit Bundle.
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Total Pages
Answer Key
Teaching Duration
3 Weeks
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