Math 9, Lesson 9, Spring 2018, 4/8/2018

Weidong Posted in Homework, Math 9, Spring 2018, Teaching info
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We study tables, charts, and graph, in particular we study distance-time graphs and speed-time graphs.

In our earlier classes (Math 7), students should have learned the basics of reading, interpreting and graphing of tables, charts, and graphs, as well as working with distance-time graphs.

So we focus on study speed-time graphs which can contain more information about the motion of an object than that of a distance-time graph.

With a speed-time graph, we can calculate acceleration, as well as calculating distance traveled, which is the area under the speed time graph.

Homework:

Page 1Page 2Page 3Page 4Page 5Page 6Page 7

From the workbook, Page 50: #5- #13, #15 – #18.

Algebra 2, Lesson 9, Spring 2018, 4/8/2018

Weidong Posted in Algebra 2, Spring 2018, Teaching info
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We continue to study finding roots for polynomials. Today we study how to find rational roots, which are those that can be expressed as a fraction p/q, where p and q are relative prime.

We also study how to find certain bound for roots to help reducing the search space.