Math 9, Lesson 5, Spring 2017, 3/19/2017

Weidong Posted in Homework, Math 9, Spring 2017，
19 March 2017
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We review Pythagoras’ Theorem and basic trigonometry. We talk about the Sine Rule and Cosine Rule and how to use them to help solve some geometry problems.

We talk about terminologies like Angel of Elevation, Angle of Depression, the Bearing.

For homework, download: Page 1, Page 2, Page 3

#4 – #17.

Answers to last week’s homework: answers1, answers2

 

Algebra 2A, Lesson 5, Spring 2017, 3/19/2017

Weidong Posted in Algebra 2, Spring 2017, Teaching info，
19 March 2017
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We start the new chapter (Ch. 6) on Polynomial Division.

We go over polynomial review, talk about long division and start talking about synthetic division, which is a quicker and more compact way of dividing a binomial in the form of x-a.