These Proving Lines Parallel lesson notes and worksheets cover:

• 5 ways to prove lines are parallel
• Identifying whether lines are parallel given information about angles
• Finding values of variables that make lines parallel
• 2-column proofs - proving lines are parallel

I have included 2 versions: version 1 uses the terminology "same-side interior" and version 2 uses the terminology "consecutive interior", depending on what best fits your needs.

This resource includes:

• 2 pages of guided notes with examples (including 2 proofs)
• 2 practice worksheets (one page with 10 problems, and one page with 2 proofs)

The practice worksheets would be perfect for in class practice or for homework!

Answer keys are included.

Terms of Use:

This resource should only be used by the teacher who purchased it. The proper number of licenses should be bought if used by multiple teachers.

Don’t Forget!

You can earn TPT store credits by leaving feedback on products you buy! Credits can be applied to future TPT purchases. You can leave feedback by clicking “My purchases” and the “Leave a review”.