Geometry Proofs Task Cards

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5.77 MB   |   25 plus answer keys & instructions pages

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Proof Writing in High School Geometry (Two-Column Proofs):

This versatile set of 12 geometry proof problems can be used in many ways.

You get the set of 12 proof problems in two formats : one with a two-column table set up for recording, and one without. A student recording sheet is included as well. Answer keys are included, but there may be other possible approaches to some proofs.

Option 1: Print one set of task cards and laminate them. Print a “recording sheet” for each student. They can work in small teams or rotate through stations to complete tasks.

Option 2: Print multiple cards per page to create worksheets for student practice.

Option 3: One proof at a time can be projected for full-class practice.

Option 4: Use an assortment of proofs to create an assessment.

Concepts Used in Justifications for Proofs in this set (prior knowledge required):
Bisectors
Supplementary angles
Linear pairs
Vertical angles
Reflexive property
Symmetric property
Transitive property
Angle Addition Postulate
Segment Addition Postulate
Corresponding angles Postulate
Alternate interior angles Theorem
Alternate exterior angles Theorem
Same-side interior angles Theorem
Same-side exterior angles Theorem
“Right angles are congruent”
“Base angles of Isosceles triangles are congruent”
SAS
SSS
AAS
ASA
HL
CPCTC
(+ converses of any of the above where applicable)

See preview for views of the two formats of task cards and some samples. The zip file contains PDF files.


Check out a full unit - teaching proofs from the very beginning:

Proofs: Full Unit


For more task cards, try:

Algebra In Geometry Task Cards: Finding Missing Angle Measures

Task Cards: Slopes of Parallel and Perpendicular Lines


For more great high school Geometry resources, try:

Lesson Pack: Transversals

Quadrilaterals Proofs


Total Pages
25 plus answer keys & instructions
Answer Key
Included
Teaching Duration
2 Days

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Geometry Proofs Task Cards
Geometry Proofs Task Cards
Geometry Proofs Task Cards