# Teaching Proofs with Proof Cut-Out Activities

So you want to know how to rock teaching proofs?  Proofs cut-out activities are hands down my favorite activity for teaching proofs.

I’ve found that at the very beginning, students need lots of modeling to see how to solve proofs.  Then, when I release them to practice on their own, they often stare at the page.  That’s where cut-out activities come in.  Basically, they are a low stress way for students to practice.  Students kind of have a “word bank” with options to choose from and if they make a mistake they don’t have to erase a million times.

Here’s how they work:

• I give my students three or four proofs with all the statements and reasons needed for the proofs, jumbled together.
• The students cut all of them out and sort them into proofs.  Since they’re not writing anything, they can move the statements and reasons around quickly and easily.
• If students are struggling, I give them a sheet with hints (included in every proofs cut-out).  Usually, the hints page is enough to help them figure everything out themselves.
• While students are working, I walk around, check their work, and try to clear up misconceptions.

Proofs cut-outs make it easier for students to make mistakes.  There’s no writing and erasing and writing and erasing and erasing while they’re learning.  Students can easily manipulate the statements and reasons with no record of mistakes.  In my classes, this has totally eliminated students staring off into space and feeling overwhelmed.

I have a few proof cut-out activities in my Teachers pay Teachers store.  Try one out; it will help your students!

 Introductory Geometry Proofs Cut-Out Activity

 Parallel Lines with Transversals Proofs Cut-Out Activity

 Parallel and Perpendicular Lines Proofs Cut-Out Activity

 Triangle Congruence Proofs Cut-Out Activity

 Triangle Congruence and CPCTC Proofs Cut-Out Activity

 Geometry Proofs Cut-Out Activity Bundle