Welcome to the Riverside School's Math Marathon 2026! 

Math Marathon is a week-long event where we celebrate the study of math in our school community. 

Monday, March 9, 2026 – Sunday, March 15, 2026

This year’s Math Marathon includes:

• A week-long Math Marathon Game Board Challenge featuring at-home math enrichment activities that students can complete to earn chances to win fun prizes! And,
• Daily Math Games with the Riverside Math Team!  Monday through Friday - before the start of school - we will host 4 separate tables - one for K only (by the side door), and three others in front of the school for K - 1, Grades 2 - 3 and Grades 4 - 5.  Students at each table will have the chance to win a different prize each day!

See below for details and join us for these fun math opportunities!

Math Marathon Game Board Challenge

Each at-home game board features fun grade-level math enrichment activities your child can complete during Math Marathon week March 9 - March 15, 2026. Click below to download and print the level-appropriate Math Marathon game board packet for your student! 

• Kindergarten Game Board Packet 
• Kindergarten Game Board Answer Key
• First Grade Game Board Packet
• First Grade Game Board Answer Key
• Second Grade Game Board Packet
• Second Grade Game Board Answer Key
• Third Grade Game Board Packet
• Third Grade Game Board Answer Key
• Fourth Grade Game Board Packet
• Fourth Grade Game Board Answer Key
• Fifth Grade Game Board Packet
• Fifth Grade Game Board Answer Key 

Each activity completed earns your child a chance to win in two ways: 

• Win as an individual! Each game board activity students complete earns them a chance to win a $50 gift certificate to Athena Books in Old Greenwich. (1 winner per grade). 
• Win with your class! The class in each grade with the highest percentage of participating students will win an EXTRA RECESS! 

Submit a picture of your student’s Game Board(s) and enter the total number of activities completed on My Page (under “Quick Links”) by Sunday, March 15 at 5pm for a chance to win. 

The PTA will track submissions and determine the winners. 

Last year we had over 200 game board submissions - we hope you will join us this year!

Daily Math Games

Come to school at 8:30am starting Monday, March 9 through Friday, March 13 for Math Games with the Riverside Math Team!  Each day we will host 4 separate tables - one for K only (by the side door), and three others in front of the school for K - 1, Grades 2 - 3 and Grades 4 - 5 - each of which include age-appropriate games of counting, calculating and sleuthing.  Students at each table will have the chance to win a different prize each day!

With any questions or help accessing a game board, please email Math Marathon PTA volunteers.  Here is more information on the GPS Elementary Math Curriculum.