Lesson review

Lesson Review:

1. Ch. 18 Complex Number + Ch. 19 Absolute Value HW review

2. Ch. 20 Angles

• Exterior Angle Theorem: x = a+b
• Parallel lines
  • Vertical angles (congruent)
  • Alternate interior angles (congruent)
  • Corresponding angles (congruent)
  • Same side interior angles (supplementary)
• Polygons
  • the sum of interior angles = 180°(n-2)
  • the sum of exterior angles = 360°

Homework:

1. Chapter 20 Exercise (Page 166-169)

2. In Google Classroom – Classwork, please type the # of questions in the Chapter Exercise that you made mistakes, or the ones that you would love Ms. Li to explain in our next class. Due 4/4 Saturday 11:59 pm.

Other Resources:

• https://www.mathsisfun.com/geometry/parallel-lines.html
• https://www.khanacademy.org/math/geometry/hs-geo-foundations/hs-geo-polygons/v/sum-of-interior-angles-of-a-polygon
• https://www.khanacademy.org/math/geometry/hs-geo-foundations/hs-geo-polygons/v/sum-of-the-exterior-angles-of-convex-polygon

We played the Kahoot! game today in class. It’s great fun! And I am so happy to see someone used “I love math” as her nickname 😛  Yes, I believe passion can lead you to learn math well!

Due to the property of the online class, I have decided to cancel our Midterm Exam (but we will keep our Final Exam at the end of the semester). Next week we are going to learn Ch. 21 Triangles. See you then!

Lesson Review:

1. Chapter 18 Complex Number

2. Chapter 19 Absolute Value

Homework:

1. Join Google Classroom (Class code: yzdaetx)

2. Chapter 18+19 Exercise (Page 154-155, 159-161)

Please type the # of questions in the Chapter Exercise that you made mistakes, or the ones that you would love Ms. Li to explain in our next class. Due 3/28 Saturday 11:59 pm.

Other Resources:

• https://www.khanacademy.org/math/algebra2/x2ec2f6f830c9fb89:complex/x2ec2f6f830c9fb89:complex-num/a/intro-to-complex-numbers
• https://www.khanacademy.org/math/arithmetic/arith-review-negative-numbers/arith-review-abs-value/a/intro-to-absolute-value
• https://www.khanacademy.org/math/algebra-home/alg-absolute-value/alg-absolute-value-equations/v/absolute-value-equations

It’s great working with all of you today. I appreciate everyone’s participation in the Zoom activities! Next week we are going to learn Ch. 20 Angles. See you then!

Lesson Review:

1. Chapter 16 HW review (see pictures attached)

2. Chapter 17 Synthetic Division(see pictures attached)

Homework:

1. Corrections of Chapter 16 Exercise

2. Chapter 17 Exercise (Page 150-151)

Other Resources:

https://www.khanacademy.org/math/algebra-home/alg-polynomials/alg-synthetic-division-of-polynomials/v/synthetic-division

https://www.khanacademy.org/math/algebra-home/alg-polynomials/alg-synthetic-division-of-polynomials/v/synthetic-division-example-2

https://www.khanacademy.org/math/algebra2/x2ec2f6f830c9fb89:poly-div/x2ec2f6f830c9fb89:remainder-theorem/v/polynomial-remainder-theorem

https://www.khanacademy.org/math/algebra2/x2ec2f6f830c9fb89:poly-div/x2ec2f6f830c9fb89:remainder-theorem/v/polynomial-remainder-theorem-example

Thank you for everyone doing a fantastic job in the online-lesson! Hope you are having fun with the annotations on the whiteboard:)

SAT-Math Chapter 16:  Quadratics

Lesson Review:

1. Chapter 15 HW review (see pictures attached)

2. Quadratic functions (see pictures attached, and textbook Page 139)

Homework:

1. Corrections of Chapter 15 Exercise

2. Chapter 16 Exercise (Page 140-142)

Other Resources:

https://www.mathsisfun.com/algebra/quadratic-equation-graph.html

https://www.mathsisfun.com/algebra/quadratic-equation.html

https://www.desmos.com/calculator

Take care and look forward to meeting you next week!

Lesson Review:

1. Function (vertical line test)

domain (x), range (y)

vertical asymptotes, horizontal asymptotes

input (x), output (y)

2. A function is undefined when:

a. the denominator is 0

b. the radicand of an even power radical (e.g: square root) is negative

3.  Composite function (a function of other functions): such as f(g(x)) : start from the inside and work your way out.

4. maximum and minimum value of y (the highest and lowest point in the graph)

5. zeros, roots, or solutions of f(x): the x value(s) when f(x)=0.

6. use special points in the graph (vertex, y-intercept, x-intercepts)

Homework:

1. Corrections of Chapter 14 Exercise (Page 113-116)
2. Chapter 15 Exercise (Page 123-127)

Other Resources:

1. https://www.khanacademy.org/math/algebra/x2f8bb11595b61c86:functions/x2f8bb11595b61c86:evaluating-functions/v/what-is-a-function
2. https://www.khanacademy.org/math/precalculus/x9e81a4f98389efdf:composite/x9e81a4f98389efdf:composing/v/evaluating-composite-functions

Take care in this special season and stay safe!

Dear all,

In the email please find the answer key to SAT Math Practice 3. Please do not hesitate to reach out if you have any questions. Have a nice weekend and see you on 3/1/2020!

Best regards,

Lijia

Dear all,

In the parents’ email please find SAT Math Practice Test 3 if you need some more practice during the spring break. I will email the answer key next weekend.

There is no school for the following two weeks. Please feel free to contact me if you have any questions regarding our previous exercises. I will be very glad to help.

Enjoy a safe and lovely spring break, and I look forward to meeting you on 3/1!

Best,

Lijia

Thank you for attending the online class and bringing the math questions to the class discussion today! I enjoyed working with you all.

Here are the questions that we went through:

Please try to finish the two practice tests that I shared last week and this week. Look forward to seeing you all soon.

Take care,

Lijia

Dear parents,

In your email please find the practice test for your kids this month. Our next on-site class will be on 3/1/2020. 
Again, welcome to the online class this Sunday afternoon. Please let me know if your kids will attend. 

Topic: SAT Math
Time: Feb 9, 2020 03:30 PM Eastern Time (US and Canada)

Join Zoom Meeting
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Meeting ID: 497 792 0611

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Best regards,

Lijia