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Marisa Laks

Geometry

The Global Learning Collaborative

New York, NY

Urban Environment

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View all Master TeachersGeometry

(14 Units, 97 Lessons)

Unit 9 - Proofs about Parallelograms(10 Lessons)

Unit 1 - Preparing for the Geometry Course(2 Lessons)

Unit 2 - Geometric Constructions(13 Lessons)

Unit 3 - Transformational Geometry(10 Lessons)

Unit 4 - Rigid Motions(3 Lessons)

Unit 5 - Fall Interim Assessment: Geometry Intro, Constructions and Rigid Motion(5 Lessons)

Unit 6 - Introduction to Geometric Proofs(10 Lessons)

Unit 7 - Proofs about Triangles(11 Lessons)

Unit 8 - Common Core Geometry Midcourse Assessment(5 Lessons)

Unit 9 - Proofs about Parallelograms(10 Lessons)

Unit 10 - Similarity in Triangles(10 Lessons)

Unit 11 - Geometric Trigonometry(3 Lessons)

Unit 12 - The Third Dimension(5 Lessons)

Unit 13 - Geometric Modeling(3 Lessons)

Unit 14 - Final Assessment(7 Lessons)

Quadrilateral Tangram Investigations

Geometry

Â» Unit:

Proofs about Parallelograms

Big Idea:This lesson is a pre-assessment to identify what the students know about the properties of quadrilaterals. They use tangrams to form shapes and write about what they discover.

16 Resources

3 Favorites

16 Resources

3 Favorites

Quadrilateral Investigations using Geometer's Sketchpad

Geometry

Â» Unit:

Proofs about Parallelograms

Big Idea:Students work in groups to investigate properties of parallelograms and rectangles using dynamic geometry software.

21 Resources

1 Favorite

21 Resources

1 Favorite

Sorting Quadrilaterals

Geometry

Â» Unit:

Proofs about Parallelograms

Big Idea:Students sort quadrilateral cards into piles based on the common properties in order to identify the specific type of quadrilateral.

20 Resources

7 Favorites

20 Resources

7 Favorites

Attributes of Quadrilaterals

Geometry

Â» Unit:

Proofs about Parallelograms

Big Idea:Students review vocabulary associated with quadrilaterals and create a graphic organizer showing the properties of quadrilaterals.

14 Resources

4 Favorites

14 Resources

4 Favorites

Origami Cranes and Geometric Definitions

Geometry

Â» Unit:

Proofs about Parallelograms

Big Idea:Students explore theorems about parallelograms through a hands-on activity. By the end of the activity, students will have made an Origami Crane!

14 Resources

9 Favorites

14 Resources

9 Favorites

Theorems about Sides of Parallelograms

Geometry

Â» Unit:

Proofs about Parallelograms

Big Idea:In this lesson, students use their prior knowledge to prove theorems about the sides of parallelograms.

14 Resources

0 Favorites

14 Resources

0 Favorites

Theorems about Angles of Parallelograms

Geometry

Â» Unit:

Proofs about Parallelograms

Big Idea:Students use parallel lines, linear pairs and supplementary angles to prove theorems about the angles of parallelograms.

17 Resources

0 Favorites

17 Resources

0 Favorites

Theorems about Diagonals of Parallelograms

Geometry

Â» Unit:

Proofs about Parallelograms

Big Idea:Students use prior knowledge to write formal proofs about the diagonals of a parallelogram.

15 Resources

0 Favorites

15 Resources

0 Favorites

Proofs about Parallelogram Assessment Review

Geometry

Â» Unit:

Proofs about Parallelograms

Big Idea:This is a one-day review for the summative assessment for this unit. Students will identify and describe properties of parallelograms and apply the properties to answer questions involving parallelograms.

13 Resources

2 Favorites

13 Resources

2 Favorites

Proofs about Parallelogram Summative Assessment

Geometry

Â» Unit:

Proofs about Parallelograms

Big Idea:This is a summative assessment for the unit, "Proofs about Parallelograms." The assessment consists of ten multiple choice questions, eight true/false questions, four short answer questions, and one proof.

4 Resources

2 Favorites

4 Resources

2 Favorites