Schedule and Materials for School Year 2022-2023

Free Mathcounts Training

Schedule and Materials for School Year 2022-2023

All lectures at 3:30-4:30 pm PST / 6:30-7:30 pm EST on Sundays (dates subject to change)

Here is the FAQ for this project.

We use YouTube Live Streaming to deliver live lectures, and the channel is here:

https://www.youtube.com/channel/UCkm3aZgjxLuBzF9DxXseikw

A continuously updated playback video list for 2022-23 is here:

https://www.youtube.com/playlist?list=PLJyJulVSy505lxB--y1ZMLy6bixu05Qnl

The Mathcounts Minis, a series of Mathcounts training materials including problem sets, solutions, and short-lecture videos, was jointly developed by Mathcounts and Art of Problem Solving (AoPS). Those materials have been posted into the public domain on the Internet.

As we will use Mathcounts Minis extensively as our primary source for training materials, we want to extend our sincere gratitude to the folks at Mathcounts and AoPS, especially Mr. Richard Rusczyk, for their dedication to quality math education.

Schedule and Materials for School Year 2022-2023

School Year Begins

Week 1 (9/5-9/11, Algebra)

Week 2 (9/12-9/18, Algebra)

Week 3 (9/19-9/25, Geometry)

Week 4 (9/26-10/2, Combinatorics)

Week 5 (10/3-10/9, Algebra)

Week 6 (10/10-10/16, Algebra)

Week 7 (10/17-10/23, Geometry)

Week 8 (10/24-10/30, Combinatorics)

Week 9 (10/31-11/6, Algebra)

Week 10 (11/7-11/13, Number Theory / Algebra)

Week 11 (11/14-11/20, Geometry)

Thanksgiving Break (11/21-11/27)

Week 12 (11/28-12/4, Combinatorics)

Week 13 (12/5-12/11, Algebra)

Week 14 (12/12-12/18, Geometry)

Christmas Break (12/19-1/8)

Week 15 (1/9-1/15, Geometry)

Week 16 (1/16-1/22, Combinatorics)

Week 17 (1/23-1/29, Algebra)

Week 18 (1/30-2/5, Algebra)

Week 19 (2/6-2/12, Combinatorics)

Week 20 (2/13-2/19, Geometry)

Week 21 (2/20-2/26, Algebra)

Week 22 (2/27-3/5, Problem Solving)

Week 23 (3/6-3/12, Combinatorics)

Week 24 (3/13-3/19, Analytic Geometry)

Spring Break (3/20-4/2)

Week 25 (4/3-4/9, Problem Solving)

Week 26 (4/10-4/16, Algebra)

Week 27 (4/17-4/23, Combinatorics)

Week 28 (4/24-4/30, Problem Solving)

Week 29 (5/1-5/7, Geometry)

Week 30 (5/8-5/14, Algebra)

School Year Begins

Week 1 (9/5-9/11, Algebra)

Lecture on 9/11, Sunday. Topic(s): word problems; number sense; remainders

AoPS/Mathcounts Minis #19, #55, #82, and #14; YouTube Mini videos #19, #55, #82, and #14; and corresponding solutions #19, #55, #82, and #14.

Week 2 (9/12-9/18, Algebra)

Lecture on 9/18, Sunday. Topic(s): speed problems; rate and ratio; symmetry in equations.

AoPS/Mathcounts Minis #28, #37, #59, and #65; YouTube Mini videos #28, #37, #59, and #65; and corresponding solutions #28, #37, #59, and #65.

Week 3 (9/19-9/25, Geometry)

Lecture on 9/25, Sunday. Topic(s): right triangles; 30-60-90 right triangles

AoPS/Mathcounts Minis #22, #88, and #95; YouTube Mini videos #22, #88, and #95; and corresponding solutions #22, #88, and #95.

Week 4 (9/26-10/2, Combinatorics)

Lecture on 10/2, Sunday. Topic(s): casework in counting

AoPS/Mathcounts Minis #62, #69 and #77; YouTube Mini videos #62, #69 and #77; and corresponding solutions #62, #69 and #77.

Week 5 (10/3-10/9, Algebra)

Lecture on 10/9, Sunday. Topic(s): arithmetic and geometric sequences

AoPS/Mathcounts Minis #3, #12, #25, and #29; YouTube Mini videos #3, #12, #25, and #29; and corresponding solutions #3, #12, #25, and #29.

Week 6 (10/10-10/16, Algebra)

Lecture on 10/16, Sunday. Topic(s): number sense and algebra; algebra strategies

AoPS/Mathcounts Minis #32, #51, and #61; YouTube Mini videos #32, #51, and #61; and corresponding solutions #32, #51, and #61.

Week 7 (10/17-10/23, Geometry)

Lecture on 10/23, Sunday. Topic(s): auxiliary lines; areas and volumes

AoPS/Mathcounts Minis #8, #16, and #18; YouTube Mini videos #8, #16, and #18; and corresponding solutions #8, #16, and #18.

Week 8 (10/24-10/30, Combinatorics)

Lecture on 10/30, Sunday. Topic(s): constructive counting

AoPS/Mathcounts Minis #31, #33, and #42; YouTube Mini videos #31, #33, and #42; and corresponding solutions #31, #33, and #42.

Week 9 (10/31-11/6, Algebra)

Lecture on 11/6, Sunday. Topic(s): equation manipulation; square of binomials; repeating decimals and radical expressions; polynomials

AoPS/Mathcounts Minis #4, #10, and #53; YouTube Mini videos #4(1), #4 (2), #10, and #53; and corresponding solutions #4, #10, and #53.

Week 10 (11/7-11/13, Number Theory / Algebra)

Lecture on 11/13, Sunday. Topic(s): squares; difference of squares

AoPS/Mathcounts Minis #20, #24, and #44; YouTube Mini videos #20, #24, and #44; and corresponding solutions #20, #24, and #44.

Week 11 (11/14-11/20, Geometry)

Lecture on 11/20, Sunday. Topic(s): similar triangles and proportional reasoning

AoPS/Mathcounts Minis #30, #35, #43, and #54; YouTube Mini videos #30, #35, #43, and #54; and corresponding solutions #30, #35, #43, and #54.

Thanksgiving Break (11/21-11/27)

Have a great Thanksgiving week, everyone!

Week 12 (11/28-12/4, Combinatorics)

Lecture on 12/4, Sunday. Topic(s): paths on a grid; number of subsets of a set

AoPS/Mathcounts Minis #7, #13, and #85; YouTube Mini videos #7, #13, and #85; and corresponding solutions #7, #13, and #85.

Week 13 (12/5-12/11, Algebra)

Lecture on 12/11, Sunday. Topic(s): sequences; series; patterns

AoPS/Mathcounts Minis #46, #83, and #89; YouTube Mini videos #46, #83, and #89; and corresponding solutions #46, #83, and #89.

Week 14 (12/12-12/18, Geometry)

Lecture on 12/18, Sunday. Topic(s): circles, areas, and volumes

AoPS/Mathcounts Minis #27, #39, and #47; YouTube Mini videos #27, #39, and #47; and corresponding solutions #27, #39, and #47.

Christmas Break (12/19-1/8)

Week 15 (1/9-1/15, Geometry)

Lecture on 1/15, Sunday. Topic(s): tangent segments and similar triangles; circles and right triangles

AoPS/Mathcounts Minis #11, #34, #52, and #80; YouTube Mini videos #11, #34, #52, and #80; and corresponding solutions #11, #34, #52, and #80.

Week 16 (1/16-1/22, Combinatorics)

Lecture on 1/22, Sunday. Topic(s): probabilities in dice-rolling; Pascal's Triangle; counting strategies

AoPS/Mathcounts Minis #1, #36, and #60; YouTube Mini videos #1(1), #1(2), #36, and #60; and corresponding solutions #1, #36, and #60.

Week 17 (1/23-1/29, Algebra)

Lecture on 1/29, Sunday. Topic(s): factorials; bases; powers

AoPS/Mathcounts Minis #49, #79, and #91; YouTube Mini videos #49, #79, and #91; and corresponding solutions #49, #79, and #91.

Week 18 (1/30-2/5, Algebra)

Lecture on 2/5, Sunday. Topic(s): perfect squares; difference of squares

AoPS/Mathcounts Minis #5, #23, and #96; YouTube Mini videos #5, #23, #96, and #100; and corresponding solutions #5, #23, and #96.

Week 19 (2/6-2/12, Combinatorics)

Lecture on 2/12, Sunday. Topic(s): counting methods; number of arrangements; counting rectangles in a grid; counting possibilities

AoPS/Mathcounts Minis #2, #21, and #50; YouTube Mini videos #2, #21, and #50; and corresponding solutions #2, #21, and #50.

Week 20 (2/13-2/19, Geometry)

Lecture on 2/19, Sunday. Topic(s): composed/decomposed area/volume; triangles; similarity and proportional reasoning; trapezoids.

AoPS/Mathcounts Minis #58, #63, #66, and #84; YouTube Mini videos #58, #63, #66, and #84; and corresponding solutions #58, #63, #66, and #84.

Week 21 (2/20-2/26, Algebra)

Lecture on 2/26, Sunday. Topic(s): quadratic and complex equations

AoPS/Mathcounts Minis #38, #68, and #81; YouTube Mini videos #38, #68, and #81; and corresponding solutions #38, #68, and #81.

Week 22 (2/27-3/5, Problem Solving)

Lecture on 3/5, Sunday. Topic(s): searching for patterns

AoPS/Mathcounts Minis #9, #57, and #71; YouTube Mini videos #9(1), #9(2), #57, and #71; and corresponding solutions #9, #57, and #71.

Week 23 (3/6-3/12, Combinatorics)

Lecture on 3/12, Sunday. Topic(s): geometric methods for probabilities; probability problem solving

AoPS/Mathcounts Minis #15, #87, and #92; YouTube Mini videos #15, #87, and #92; and corresponding solutions #15, #87, and #92.

Week 24 (3/13-3/19, Analytic Geometry)

Lecture on 3/19, Sunday. Topic(s): analytic geometry

AoPS/Mathcounts Minis #41, #78, and #90; YouTube Mini videos #41, #78, and #90; and corresponding solutions #41, #78, and #90.

Spring Break (3/20-4/2)

Week 25 (4/3-4/9, Problem Solving)

Lecture on 4/9, Sunday. Topic(s): drawing a picture; making a sketch; more than one method

AoPS/Mathcounts Minis #6, #64, #76, and #94; YouTube Mini videos #6, #64, #76, and #94; and corresponding solutions #6 (unavailable), #64, #76, and #94.

Week 26 (4/10-4/16, Algebra)

Lecture on 4/16, Sunday. Topic(s): sequences; series; patterns

AoPS/Mathcounts Minis #70, #74, and #98; YouTube Mini videos #70, #74, and #98; and corresponding solutions #70, #74, and #98.

Week 27 (4/17-4/23, Combinatorics)

Lecture on 4/23, Sunday. Topic(s): probability and counting; conditional probability

AoPS/Mathcounts Minis #26, #48, and #99; YouTube Mini videos #26, #48, and #99; and corresponding solutions #26, #48, and #99.

Week 28 (4/24-4/30, Problem Solving)

Lecture on 4/30, Sunday. Topic(s): optimization; strategic guessing & checking; more than one method; non-standard operators in algebraic expressions

AoPS/Mathcounts Minis #67, #73, #75, and #86; YouTube Mini videos #67, #73, #75, and #86; and corresponding solutions #67, #73, #75, and #86.

Week 29 (5/1-5/7, Geometry)

Lecture on 5/7, Sunday. Topic(s): inscribed rectangle in triangle; 3D-geometry.

AoPS/Mathcounts Minis #45, #72, and #97; YouTube Mini videos #45, #72, and #97; and corresponding solutions #45, #72, and #97.

Week 30 (5/8-5/14, Algebra)

Lecture on 5/14, Sunday. Topic(s): arithmetic sequences; sequences and central tendency

AoPS/Mathcounts Minis #17, #40, #56, and #93; YouTube Mini videos #17, #40, #56, and #93; and corresponding solutions #17, #40, #56, and #93.