Monday, February 4, 2013

Angles Formed by Parallel Lines Cut by a Transversal Foldable for Geometry or Middle School Math

I've taught angles formed by parallel lines cut by a transversal in geometry and in my on-grade level 8th grade classes.  Students generally catch on without much trouble, but there are often a few students who have trouble matching the vocabulary to the diagram. 

Here's a foldable I'm going to use with my students in Algebra I and Intermediate Algebra this year to practice the vocabulary prior to our state testing next month.  (Eep!  Next month is March already?)  Our students need to know corresponding angles, alternate interior angles, and alternate exterior angles.  I generally include same side interior and same side exterior for means of comparison and because they're going to need them for geometry anyway, so it makes sense to introduce the vocabulary at the same time. 

Would you like to use this with your class?  Download the PDF here and enjoy.  Let me know how it works with your students. 

Mathematically yours,
Miss B


  1. I teach 10th graders and I used it today. They got it. It seemed to pull it all together for them. Thanks. I will use it again next y ear.

  2. Thanks for your feedback, Preston. I always love to hear when things work (or if they don't).

  3. I can't wait to use this with my ESL students

  4. Used this today in WI. The kids were relieved to have a hands on activity after our DRY lesson on the topic yesterday. I felt so badly for how boring it was I searched to find something that would help. Thank you for a great resource!

  5. Thanks for sharing this. I used it today and students really seemed to understand the concepts and which angles were congruent and which were supplementary (and more importantly, why!).

    1. Glad to hear it worked for your students!

  6. Going to use tomorrow in Geometry class!!! Thanks!!!

  7. Just used this today in my geometry class (10th and 11th graders). The kids really got it! Having them color the interior and exterior sections really helped them... so did putting "ALTERNATE" around the transversal as you have shown! Brilliant! Thanks so much!!