Singapore Math 8th Online Class, Lesson 20, 03/15/2020

Today, students continued to study the applications of angle systems in parallel lines, triangle, quadrilateral to the different types of the multiple sides figures. In addition, polygons were introduced, primarily the convex polygons, including the sum of interior angles of n-sided polygons, and the sum of exterior angles of polygons.

Students need to focus on the analysis of the questions and find the approaches to reach the solutions. Especially in geometry study, statements/reasons are critical for students to practice their logical thinking and presentations of their ideas.

Here is today’s homework assignment:

Workbook 8A
Ch. 7:
5.(b), 8.(a), 9.(a)(b)(e), 10, 11, 16, 18, 19, 20, 21.

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