This book is a "flexed" version of CK-12's Basic Geometry that aligns with College Access Geometry and contains embedded literacy supports. It covers the essentials of geometry for the high school student.

CK-12 Foundation's Geometry FlexBook is a clear presentation of the essentials of geometry for the high school student. Topics include: Proof, Congruent Triangles, Quadrilaterals, Similarity, Perimeter & Area, Volume, and Transformations.

Compare and contrast the properties of quadrilateralsMathematics Instructional Plans (MIPs) help teachers align instruction with the 2016 Mathematics Standards of Learning (SOL) by providing examples of how the knowledge, skills and processes found in the SOL and curriculum framework can be presented to students in the classroom.

The students will visualize how the properties of Quadrilaterals can help them determine the exact shape of the figure. The students will create a model of the properties and compare them to the results the students have from data they have found

Classifying a variety of quadrilaterals based on properties. Mathematics Instructional Plans (MIPs) help teachers align instruction with the 2016 Mathematics Standards of Learning (SOL) by providing examples of how the knowledge, skills and processes found in the SOL and curriculum framework can be presented to students in the classroom.

A structured geometry program teacher edition of daily lesson plans and teacher supports to accompany the College Access Reader: Geometry student edition.

CK-12 Foundation's Geometry FlexBook is a clear presentation of the essentials of geometry for the high school student. Topics include: Proof, Congruent Triangles, Quadrilaterals, Similarity, Perimeter & Area, Volume, and Transformations.

This resource is a series of Google Slides that asks if two attributes of quadrilaterals and triangles can exist together 'Never, Sometimes, or Always.' After posing the question, the following slide will show the an and possible examples of the given polygons.

CK-12's Geometry - Second Edition is a clear presentation of the essentials of geometry for the high school student. Topics include: Proofs, Triangles, Quadrilaterals, Similarity, Perimeter & Area, Volume, and Transformations.

CK-12 Geometry Teacher's Edition covers tips, common errors, enrichment, differentiated instruction and problem solving for teaching CK-12 Geometry Student Edition. The solution and assessment guides are available upon request.

This task provides students a chance to experiment with reflections of the plane and their impact on specific types of quadrilaterals. It is both interesting and important that these types of quadrilaterals can be distinguished by their lines of symmetry.

This classroom task gives students the opportunity to prove a surprising fact about quadrilaterals: that if we join the midpoints of an arbitrary quadrilateral to form a new quadrilateral, then the new quadrilateral is a parallelogram, even if the original quadrilateral was not.

In this first part of a three part series, students will explore the ideas around Brute Force algorithm/programs to further understand the importance of password development, use, safety, and safekeeping while completing several unplugged activities over the course of three class periods (approximately 30-45 minutes each).  These activites can be completed seperately with a few adjustments as well.  Part 1 introduces Brute Force using a playing cards demonstration to sort as desired.  Part 2 introduces Decrease (or Divide) and Conquer to sort Quadrilaterals from Non-Quadrilateral shapes.  Part 3 uses the methods of both Brute Force and Divide and Conquer algorithms to decrypt (unscramble) passwords using commonly recognizable number patterns and words (completed on paper, or unplugged).  These activitess are intended for upper middle school students, but could also be adjusted for lower level highschool or simplified/adjusted for other ages as well with the editable copies provided.

In this second part of a three part series, students will explore the ideas around Decrease, or Divide, and Conquer algorithm/programs to further understand the importance of password development, use, safety, and safekeeping by completing several unplugged activities over the course of three class periods (approximately 30-45 minutes each).  These activites can be completed seperately (stand-alone) with a few adjustments as well. Part 1 introduces Brute Force using a playing cards demonstration to sort as desired.  Part 2 introduces Decrease (or Divide) and Conquer to sort Quadrilaterals from Non-Quadrilateral shapes.  Part 3 uses the methods of both Brute Force and Divide and Conquer algorithms to decrypt (unscramble) passwords using commonly recognizable number patterns and words (completed on paper, or unplugged).  These activitess are intended for upper middle school students, but could also be adjusted for lower level highschool or simplified/adjusted for other ages as well with the editable copies provided.

This geometry lesson is a remix from Illustrative Mathematics.  In this lesson, students identify triangles, quadrilaterals, pentagons and hexagons.  Students are also required to make these shapes using manipulatives.  https://tasks.illustrativemathematics.org/content-standards/tasks/1506

Students are given 6 statements and they are to determine if each statement is always, true, sometimes true, or never true.

Determine unknown side lengths or angle measures of quadrilaterals.Mathematics Instructional Plans (MIPs) help teachers align instruction with the Mathematics Standards of Learning (SOL) by providing examples of how the knowledge, skills and processes found in the SOL and curriculum framework can be presented to students in the classroom.

This activity includes a graphic organize task from the OER commons, a Desmos game, and use of DeltaMath activity. These resources will help students develop an understanding of the properties of quadrilaterals. Students will practice the vocabulary and the similarities/differences between quadrilaterals.