# Mathcounts Class

Instructors: Reagan Choi, Alex Xu

This course will cover strategies in solving problems in the Mathcounts competition. This class is intended for students in or entering middle school.

Google Classroom Code: laiicrk

### July 27 – Divisibility/Factors

Extra problems (optional homework) are included on slides 13, 23, 24. Answers can be found at the link on slide 25.

### July 29 – Counting #1

Link to Jamboard w/ annotations (note: annotations may be unclear since there are not many words that accompany them)

Homework, Hints, and Solutions

### August 6 – Counting #2 (Probability)

Presentation Download

Homework is at the end of the presentation; we covered enough in class to do questions 1 through 6.

Link to Jamboard w/ annotations (note: annotations may be unclear since there are not many words that accompany them)

Homework, Hints, and Solutions

### August 13 – Algebraic Manipulation

Presentation (homework, including a link to hints and solutions, is at the end.)

### August 20 – Counting #3

Presentation Download

There are many assorted practice problems at the end. Hints and solutions will probably be posted sometime after next week’s class.

Link to Jamboard w/ annotations (some of the material covered in this week’s class are on the Jamboard from two weeks ago) (note: annotations may be unclear since there are not many words that accompany them)

Homework, Hints, and Solutions

### August 27 – Circle Geometry

MATHCOUNTS Geometry

There are many assorted practice problems at the end. Hints and solutions will probably be posted in one or two weeks.

Link to Jamboard w/ annotations (note: annotations may be unclear since there are not many words that accompany them)