Schoolhouse.world: peer tutoring, for free.
Schoolhouse.world: peer tutoring, for free.

Math

Algebra 2 Learning Labs
Pre-Calculus Learning Labs
Pre-Algebra
Algebra 1
Algebra 2
Geometry
Pre-Calculus
Calculus
Statistics

Science

Biology
Chemistry
Physics

More

College Admissions Workshops
SAT Bootcamp
SAT Prep
College Prep
Enrichment
Computer Science
Reading and Writing
History
Free SAT® Prep, as part of a research study.
SAT® Bootcamps
Free SAT® Prep, as part of a research study.
Get free help applying to college.
College Admissions Workshops
Get free help applying to college.
1-on-1 conversations on global topics
Dialogues
1-on-1 conversations on global topics
A global network of volunteers.
Explore Tutors
A global network of volunteers.
Why get tutored by other students?
Benefits of Peer Tutoring
Why get tutored by other students?
Prove your mastery and get ready to tutor.
About Certifications
Prove your mastery and get ready to tutor.
Learn, grow, and give back through tutoring.
Become a Tutor
Learn, grow, and give back through tutoring.
How we keep virtual tutoring safe.
Session Safety Measures
How we keep virtual tutoring safe.
Have questions? Search our FAQ.
Help Desk
Have questions? Search our FAQ.
Game nights, product updates, and more.
Community Events
Game nights, product updates, and more.
Stay motivated in virtual study rooms.
Study Spaces
Stay motivated in virtual study rooms.
Check out the community's impact.
Leaderboards
Check out the community's impact.
Testimonials from the Schoolhouse community.
Stories
Testimonials from the Schoolhouse community.
Keep up with our volunteer-run blog.
Blog
Keep up with our volunteer-run blog.
Combinatorics until early AIME

SAT Score Range

•

8 sessions

•

+3

This series ended on July 27, 2025. All 1:1 and group chats related to this series are disabled 7 days after the last session.

About

In this course we will go from the start of combo and learn concepts until learners can solve early AIME problems.

Tutored by

Andrew C 🇺🇸

Certified in 1 topic

View Profile

High Schooler from California

Schedule

✋ ATTENDANCE POLICY

Although heavily discouraged due to a steeper learning curve students do not need to be present at all meetings and can leave and join as they wish.

SESSION 1

15

Jun

SESSION 1

Other Topics

Other Topics

Sun 9:00 PM - 10:30 PM UTCJun 15, 9:00 PM - 10:30 PM UTC

Introductions to combinatorics covering combinations and permutations
SESSION 2

22

Jun

SESSION 2

Other Topics

Other Topics

Sun 8:00 PM - 9:30 PM UTCJun 22, 8:00 PM - 9:30 PM UTC

Complementary counting PIE/Principle of Inclusion and Exclusion and Symmetry
SESSION 3

29

Jun

SESSION 3

Other Topics

Other Topics

Sun 8:00 PM - 9:30 PM UTCJun 29, 8:00 PM - 9:30 PM UTC

tbd
SESSION 4

6

Jul

SESSION 4

Other Topics

Other Topics

Sun 8:00 PM - 9:30 PM UTCJul 6, 8:00 PM - 9:30 PM UTC

tbd
SESSION 5

13

Jul

SESSION 5

Other Topics

Other Topics

Sun 8:00 PM - 9:30 PM UTCJul 13, 8:00 PM - 9:30 PM UTC

tbd
SESSION 6

19

Jul

SESSION 6

Other

Other

Sat 10:00 PM - 11:00 PM UTCJul 19, 10:00 PM - 11:00 PM UTC

makeup session
SESSION 7

20

Jul

SESSION 7

Other Topics

Other Topics

Sun 8:00 PM - 9:30 PM UTCJul 20, 8:00 PM - 9:30 PM UTC

tbd
SESSION 8

27

Jul

SESSION 8

Other Topics

Other Topics

Sun 8:00 PM - 9:30 PM UTCJul 27, 8:00 PM - 9:30 PM UTC

tbd

Public Discussion

Please log in to see discussion on this series.

Jun 15 - Jul 27

7 weeks

60 - 90 mins

/ session

SCHEDULE

Sundays

8:00PM