2020 Math Field Day

Saturday, May 16 at Capistrano Vallley High School, Mission Viejo

Coaches' Corner


Math Field Day is an opportunity for Orange County Elementary Schools to join together in promoting excellence in mathematics, team work, achieving goals, and school spirit. 

Math Field Day is an all-day math competition for students in Grade 4, 5, and 6 sponsored by the Orange County Math Council (OCMC).  A school can have only one team (4 team members) per grade level participating.  Most schools hold try-outs and have practice sessions for their teams. 

The Math Field Day competition categories are:

Algebraic Thinking
Number and Operations
Data Analysis


To find out more, please visit the Competition Categories page. Olympic-style medals are awarded to the top 5 teams for each grade level for each category.  All kids get "goodie bags" of prizes from community donations. 

Orange County Math Council has now sponsored the OC Math Field Day for 28 years!

Questions? Send an email to:

Dave Chamberlain, Math Field Day Coordinator at This email address is being protected from spambots. You need JavaScript enabled to view it. 



Register your team(s) and make the registration payment at the registration page: 

All registrants will receive an invoice and reciept.
Payments accepted: 
1) Credit Card via PayPal link
2) Mail in your registration fee

Mail to:
Cara Pettite
OCMC Treasurer
ATTN: MFD Registration (School Name)
PO Box 162
Anaheim, CA 92815

To register, please identify an OCMC member from your campus or become a member (see registration).
Note: The member does not have to be the coach and does not need to be in attendance at Math Field Day.
Members can volunteer for an assignment and submit Team Info.



The many team building activites that take place at Math Field Day Include: 

Team Posters (see Poster Guidelines). A prize will be given to the best poster. Poster winners are selected by our Sponsors. Click here for competition guidelines.

Theme Idea Submission for 2020 Math Field Day

Team Design for Math Field Day Button 

Designing Team T-shirts (optional)

Examples of Themes and Designs from past years can be found here.



Use the resources listed below to start practicing! 

Sample Questions

-During the competition, participants MAY NOT remove the staples from the test packets. Participants are encouraged to work together with one sheet at a time.
-ALL work MUST be completed on the test packets. Scratch paper WILL NOT be provided and will not be collected as part of the "show your work" portion of the tests.

Sample Mental Math PowerPoint

-Each Mental Math expression is shown for 5 seconds followed by a blank "thinking" screen for 5 seconds. 
-Participants MUST do all work in their heads. Any work done on the answer sheet will result in disqualification from that test. 
-The actual Mental Math test is 40 questions. The SAMPLE is only 20 questions. Coaches can modify the PowerPoint to create additional Mental Math practices for their teams. 

Sample Mental Math Answer Sheet

-Participants are encouraged to make a strikethrough line or X on an answer line if they are unable to answer within the allotted 10 seconds. This ensures that the subsequent answers are placed on the correct answer line. Test judges will grade the tests exactly as they are submitted. 
-This answer sheet is nearly identical to the official test answer sheet. 

Please also visit our FAQ page for more information on Math Field Day.