# Ch 1: Common Core Math Grade 7 - Geometry: Geometric Construction

Use the video lessons and practice quizzes in this geometric construction collection to help your seventh grade students meet the Common Core State Standards for math. There are also tips and suggestions on how to use the lessons and to recognize when your students have grasped these concepts.

Standard: Solve problems involving scale drawings of geometric figures, including computing actual lengths and areas from a scale drawing and reproducing a scale drawing at a different scale. (CCSS.MATH.CONTENT.7.G.A.1)

Standard: Draw (freehand, with ruler and protractor, and with technology) geometric shapes with given conditions. Focus on constructing triangles from three measures of angles or sides, noticing when the conditions determine a unique triangle, more than one triangle, or no triangle. (CCSS.MATH.CONTENT.7.G.A.2)

Standard: Describe the two-dimensional figures that result from slicing three-dimensional figures, as in plane sections of right rectangular prisms and right rectangular pyramids. (CCSS.MATH.CONTENT.7.G.A.3)

Students who have grasped these Common Core standards will be able to draw, describe and construct geometrical figures, as well as describe the relationships between them. Use the lessons in this collection to teach your students the following skills:

• Applying scale factors to the area, volume and perimeter of similar figures
• Reading and interpreting scale drawings
• Making geometric constructions
• Constructing types of triangles
• Identifying top, side and front view of 3-D figures

You'll know when your students have mastered these standards when they are able to solve problems that involve scale drawings of geometric figures, draw or construct geometric shapes using specified conditions and describe the 2-D shapes that come from slicing 3-D figures.

### How to Use These Lessons in Your Classroom

Here are some suggestions for incorporating the collection materials into your lesson plans:

#### Construct Geometric Figures

For a classroom activity, try making some of the constructions described in the 'Practice Making Geometric Constructions with Tools' video. Have students work in small groups so that they can share tools and advise each other. Afterwards, ask each student to write down the name of their constructions and the measurements they used.

#### Make a Scale Model of the Great Pyramid of Giza

Watch the lessons on scale factors and constructing geometric figures. Then, create a scale replica of the Pyramid of Giza using cardboard or construction paper, scissors and tape. Pyramid measurements are easily obtainable online. Have students use the knowledge they've acquired to scale down the measurements. Use a ruler to measure and draw the sides of the pyramid, and then cut out and assemble the shapes.

#### Assign Lessons and Quizzes as Homework

Supplement regular assignments with the videos and quizzes in this collection. Students can watch the videos as a refresher before completing the practice questions that correspond with each lesson. As a bonus activity, challenge students to create and answer their own questions based on the questions in the practice quizzes.

5 Lessons in Chapter 1: Common Core Math Grade 7 - Geometry: Geometric Construction
Test your knowledge with a 30-question chapter practice test
Chapter Practice Exam
Test your knowledge of this chapter with a 30 question practice chapter exam.
Not Taken
Practice Final Exam
Test your knowledge of the entire course with a 50 question practice final exam.
Not Taken

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