Parallelograms Proofs Part 1 Lesson Materials (Guided Notes, Classwork, HW):
These 6 student worksheets will help your students learn how to prove that the opposite sides of a parallelogram are congruent and that the opposite angles of a parallelogram are congruent. Students should have some knowledge of CPCTC proofs before attempting these assignments. These lesson materials include a 2-page set of guided notes, a 2-page classwork assignment, and a 2-page homework assignment, for a total of 6 student worksheets!
The guided notes include a vocabulary section, an example of each of the two proofs, and a practice proof for students to try on their own.
The classwork assignment includes proofs where students have to fill in only the reasons, proofs where students have to fill in a mixture of statements and reasons, and proofs where students have to fill in the entire proof. The classwork assignment has 6 proofs. All of the proofs are 6 or 7 steps long.
The homework assignment includes the same types of proofs as the classwork assignment. There are 6 proofs on the homework assignment. The homework assignment includes proofs where students have to fill in a mixture of statements and reasons and proofs where students have to fill in the entire proof.
The “Reasons” used in these proofs are: Given, Definition of Parallelogram, If two parallel lines are cut by a transversal, then alternate interior angles are congruent, Reflexive Property of Congruence, ASA, and CPCTC.
This set of lesson materials comes with 2 pages of guided notes and 4 pages of proofs practice (1 classwork assignment and 1 homework assignment), answer keys, and a PowerPoint file containing pictures of the worksheets and keys. The worksheets in the PowerPoint are NOT editable. When you purchase this set of lesson materials, you will receive a pdf containing the guided notes, worksheets, and answer keys, and you will receive a PowerPoint file. Before purchasing this product, please review the preview file closely to make sure that these proofs are appropriate for your students.
If you would like to purchase the practice worksheets without the guided notes, you may also like:
Parallelograms Proofs Part 1 Practice Worksheets (Classwork & Homework)
This product is intended for use by one teacher. Do not share this resource with other teachers in your school building, district, etc. Do not post this resource or any part of this resource on the internet, on school websites or on network drives. The appropriate number of licenses should be purchased if you wish to use this resource for multiple teachers in a school, district, or organization. Do not share, transmit, or reproduce any part of this resource without the permission of the author. Thank You!
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