Ch 2. Percent

lilijia Posted in SAT math
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Students did a fantastic job explaining the problems in Ch 1 HW pg 13-14 today. See notes here.

In Ch.2 Percent, students need to pay attention to the “original value” when calculating the percent of decrease/increase.

Percent Change (examples, solutions, videos, activities)

We also introduced the two formulas for simple interest and compound interest.

Simple and Compound Interest (examples, videos, solutions, worksheets,  homework, lesson plans)
Comparison Graph Illustration of Compound Interest and Simple Interest  Stock Vector - Illustration of economy, comparison: 211997098

Homework: pg 19-22. (20 problems in total). Next Sunday, we will do name cards and randomly pick students to work on the whiteboard. Get prepared:)

Ch.1 Exponents & Radicals

lilijia Posted in SAT math
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Please check here to see the answers and explanations for our pre-test:)

We learned Ch.1 Exponents & Radicals today. Check the class notes here.

Homework: Pg 13-14, Ex 1-16 (No calculator, please). Please fill in the Google Spreadsheet to claim 2 problems that you are going to explain in class next week. Early come, early pick 😛

See you next week!

Pre-test & Survey 1

lilijia Posted in AOPS_Counting_Probability
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Dear students,


Thank you for taking the pre-test today in class. You have received a grade of ___/116 upon your submission of the Google Form. Divide your grade by 2, and then you can see how many problems out of 58 did you get right. Using the grid below to find your SAT Math Diagnostic Test score.


https://drive.google.com/file/d/1OcdzFdYqvEHGf5DXoZj33EaTQD5Nx9S3/view?usp=sharing
Please do not worry about the score. It is to help us get an idea of our current level:) I have no doubt that by the end of the school year, you will do an excellent job!


Please let me know the problems you would like me to go over next week in this short survey (which can also be found in Google Classroom). Look forward to hearing from you and seeing you soon next week!

Do not forget to bring your textbook, pencil, and calculator to class!


Best, Ms. Li

Day 1, Classroom 220

lilijia Posted in AOPS_Counting_Probability
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Dear all,
Please note that the school has changed our classroom to Rm 220 (not 317)
As we are going to take the pre-test today in class. Please remember to bring your laptop/iPad/Chromebook + a scientific calculator to class. 
If you have not ordered the textbook yet, please do so as soon as possible:) We will use it in our weekly class.
Can’t wait to see you all this afternoon!
Best, Ms. Li