# Geometry

05
Jan
Free

Credit Value: 1

Anticipated Grade Level(s): 9th or 10th.

Prerequisites:  Algebra 1 or equivalent.  In exceptional situations, Geometry may be taken simultaneously with Algebra 1 with teacher approval.

Course Description:

In Geometry students develop reasoning and problem-solving skills as they study topics such as congruence and similarity; apply properties of lines, triangles, quadrilaterals, and circles; and use length, perimeter, area, circumference, surface area, and volume to solve real-world problems.  In addition to its geometry content, the course includes numerous examples and exercises involving algebra, data analysis, and probability.

## Course Content

Total learning: 93 lessons Time: 10 weeks
• Lecture1.1
• Lecture1.2
• Lecture1.3
• Lecture1.4
• Lecture1.5
• Lecture1.6
• Lecture1.7
• Lecture2.1
• Lecture2.2
• Lecture2.3
• Lecture2.4
• Lecture2.5
• Lecture2.6
• Lecture2.7
• Lecture2.8
• Lecture3.1
• Lecture3.2
• Lecture3.3
• Lecture3.4
• Lecture3.5
• Lecture3.6
• Lecture3.7
• ##### Chapter 4: Congruent Triangles
• Lecture4.1
• Lecture4.2
• Lecture4.3
• Lecture4.4
• Lecture4.5
• Lecture4.6
• Lecture4.7
• Lecture4.8
• Lecture4.9
• Lecture4.10
• Lecture5.1
• Lecture5.2
• Lecture5.3
• Lecture5.4
• Lecture5.5
• Lecture5.6
• Lecture5.7
• Lecture6.1
• Lecture6.2
• Lecture6.3
• Lecture6.4
• Lecture6.5
• Lecture6.6
• Lecture6.7
• Lecture7.1
• Lecture7.2
• Lecture7.3
• Lecture7.4
• Lecture7.5
• Lecture7.6
• Lecture7.7
• Lecture7.8
• Lecture8.1
• Lecture8.2
• Lecture8.3
• Lecture8.4
• Lecture8.5
• Lecture8.6
• Lecture8.7
• Lecture9.1
• Lecture9.2
• Lecture9.3
• Lecture9.4
• Lecture9.5
• Lecture9.6
• Lecture9.7
• Lecture9.8
• ##### Chapter 10: Properties of Circles
• Lecture10.1
• Lecture10.2
• Lecture10.3
• Lecture10.4
• Lecture10.5
• Lecture10.6
• Lecture10.7
• Lecture10.8
• ##### Chapter 11: Measurement of Figures and Solids
• Lecture11.1
• Lecture11.2
• Lecture11.3
• Lecture11.4
• Lecture11.5
• Lecture11.6
• Lecture11.7
• Lecture11.8
• Lecture11.9
• Lecture11.10
• ##### Chapter 12: Probability
• Lecture12.1
• Lecture12.2
• Lecture12.3
• Lecture12.4
• Lecture12.5
• Lecture12.6

David is a professor of mathematics education at the Aphy School. His research focuses on social and cultural factors as well as educational policies and practices that facilitate mathematics engagement, learning, and performance, especially for underserved students. Alphy School collaborates with teachers, schools, districts, and organizations to promote mathematics excellence and equity for young people.
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