Math 9, Lesson 14, Spring 2019, 6/2/2019

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We study interest and mortgage.

 

Homework:

Page1Page 2, Page 3, Page 4

Workbook Page 41, #3 – #6,  #15 – #16, #24,  #30, #31

Math 9, Lesson 13, Spring 2019, 5/19/2019

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We further practice solving logarithm and exponential problems. This is to get students more familiar with using different tools/ways to solve problems.

Homework: Page

13.5.1 – 13.5.5

Math 9, Lesson 12, Spring 2019, 5/12/2019

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We continue to study logarithms and we practice using the identities we learned last week.

Homework: Page 1

13.4.1 – 13.4.8

Math 9, Lesson 11, Spring 2019, 5/5/2019

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We study the identities of Logarithms. The set of identities will help to simplify many problems. It is important for students to get familiar with them, by practicing them.

Homework: Page 1

13.3.1 – 13.3.6

Math 9, Lesson 10, Spring 2019, 4/28/2019

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For the next 4 lessons, we will study extra content about exponents and logarithms.

Today we go over the basic exponential functions and introduce logarithms.

For homework, get these two pages: Page 1Page 2

From Page 1, 13.1.1 – 13.1.5; From Page 2, 13.2.1 – 13.2.4

Math 9, Lesson 9, Spring 2019, 4/21/2019

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We review measuration, with the focus on:

  • Areas of parallelogram and trapezium;
  • Volume and surface area of a prism;
  • Volume and surface area of a cylinder;
  • Volume and surface area of a pyramid;
  • Volume and surface area of a cone;
  • Volume and surface area of a sphere;
  • Length of an arc, area of a sector in a circle

Homework: from Page1Page2Page3:

#5- #18

Math 9, Lesson 6, Spring 2019, 3/24/2019

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We focus on speed-time graphs, how to read a speed-time graph, how to calculate the distance, how to draw a distance-time graph from a speed-graph, etc.

We will have a review class next time. We will have our mid exam on 4/7.

Here are some more homework:

Page 7Page 8Page 9Page 10Page 11

#18, #19, #20, #22, #23, #24, #25.

Math 9, Lesson 5, Spring 2019, 3/17/2019

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We study distance-time graphs.

With a distance-time graph, we can calculate speed.

Homework:

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

From the workbook, Page 50: #5- #10, #15 – #17.

Math 9, Lesson 4, Spring 2019, 3/10/2019

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We go over the application of vectors, particularly in geometry.

Notice when vector AB = vector DC, it means line AB is parallel to line DC and AB = DC.

If you have not done your homework last week because you have some questions on certain problems, please do them now:

Homework: Page 1Page 2Page 3Page 4Page 5Page 6

Workbook Page 33: # 8, #9, #13, #19 – #26

Math 9, Spring 2019, Lesson 3, 3/3/2019

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We continue our study of vectors.

We can simplify the position of a point P on a plane by the vector OP where O is a reference point on the plane. The vector OP is called the position vector of P with respect to the reference point O. That is, every point on the plane can be represented by its position vector wrt the reference point O.

Then vector PQ = vector OQ – vector OP.

Furthermore, when we look at the coordinate plane for a point P (x, y), we can use its coordinates x and y to represent its position vector with respect to the origin O. We introduce column vector notation. A column vector is like a special form of a matrix (2 rows, 1 column). All matrix operations apply to column vectors.

We can apply what we have learned about vectors to help us solve geometry problems.

Notice when vector AB = vector DC, it means line AB is parallel to line DC and AB = DC.

Homework: Page 1Page 2Page 3Page 4Page 5Page 6

Workbook Page 33: # 8, #9, #13, #19 – #26