Ruize Sun

Community

Events I run or help run, and free resources I've put together.

Events

2

Math events I run or help run.

Saturday, November 14

BSU Math Invitational

A large on-campus event at Boise State where teams of students in grades 8 to 12, along with parents and volunteers, celebrate the joy of math and problem solving.

 Days
 Hours
 Minutes
 Seconds

until the event

When
Saturday, November 14, 2026
Where
Jordan D Ballroom, Westmark Student Union Building, Boise State
What I do
I help plan it and write problems for it, and I helped bring Po-Shen Loh to the event.

Keynote speaker

Po-Shen Loh

Prof. Po-Shen Loh of Carnegie Mellon University will give a talk to everyone between the individual competition and the awards, and speak to parents during the team competition.

Sign up (opens in a new tab)Learn more
Math circleOngoing

BSU Math Circles

Sessions at Boise State that explore topics with deep roots in mathematics that school courses don't usually cover, open to students of all backgrounds. They're geared toward upper-middle and early-high school students, and I help plan and run them.

When
Once or twice a month during the school year
Where
Boise State University and the Treasure Valley Math and Science Center
Learn more

Resources

2

Free practice material and tutorials that anyone can use.

Practice material

MATHCOUNTS Resources

Past MATHCOUNTS competitions, answer keys, solutions, and handbooks, all in one place where you can search, preview, download, and print them, and check off each round as you practice it.

Browse the resources
Tutorials

Scratch Coding Tutorials

Tutorials and projects for learning to code with Scratch, from my YouTube channel and my Scratch page.

See the tutorials