Unsolved Problems


*This course is intended for lower elementary students


Class Schedule

1:00-1:50 pm PST

August 5th, August 6th, August 7th, August 8th, August 9th

*Note: This is a weeklong course meeting each day from Monday-Friday


Note: Classes are listed in PST, click below to convert time to your time zone.

Course Overview

Did you know that some of the most vexing unsolved problems in mathematics can be understood, and even attempted, by kids?!

In this course, you will be introduced to famous unsolved problems involving jumping frogs, Mondrian art, and hailstone numbers (to name just a few!).

We will work together to make sense of these challenges, learning new math skills and testing our perseverance along the way. Perhaps you will even make a new mathematical discovery!

Student Outcomes:

  • Learn about famous unsolved problems in the history of mathematics
  • Build problem-solving skills and perseverance
  • Find patterns and structure in novel problems

Student Experience

Pattern Seeker




Your Teacher: Emily Lenhart

Emily Lenhart has worked in education for 10 years with a broad range of experience in elementary and middle school settings at both independent and public schools across the US. During her 5 years at the Nueva School in Hillsborough, CA, she enjoyed learning to meet the diverse needs of gifted learners while earning a Master of Education from the University of the Pacific. Emily currently serves as the math specialist at a public school in rural Iowa, where she strives to support students as they find patterns, make connections, and ask questions. Emily also runs an online tutoring business for gifted students who struggle in math.