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Clubs & Activities

Winter Clubs

Based both on teacher interest and on student interest, the winter clubs program takes place during the lunch and recess period during the winter term. Open to all Upper School students (grades 4-6), the program provides a welcome connection between students and staff who may not necessarily get a chance to interact. Recent activities have included such popular options as chess, robotics, yoga, debate, board games, power walking, snowshoeing, drama, improvisation, and photography. With clubs offered twice a week (Tuesdays and Thursdays), all Upper School children participate in at least one special activity.

*For more information on these programs contact Carrie Danforth (


Math Olympiads

The Math Olympiads program has been in place for many years and provides competition and fellowship for those students who welcome additional challenge. Following a curriculum that is used by schools around the world, students attend practices on a weekly basis and participate in monthly tests. In preparation for the reality of the 21st-century workplace, students compete as a team and are compared against teams from across the country and around the world. At the end of the year, achievement is recognized both on an individual and also on a team basis. CHS teams have scored consistently in the top 10% of schools nationwide. 

*for more information about Math Olympiads click here



The LEGO Robotics Team was established in 2013 and serves as a capstone experience exclusively for our 6th graders. Sponsored by the First LEGO League (FLL) of Massachusetts, competitions are held during the winter in various locations across the state. 


Practices are held throughout the fall on Wednesdays, either before or after school (depending on student availability), and during the lunch/recess period on Thursdays. 


In addition to weekly practices, students who join the team commit to participating in a state qualifier competition. The date of the competition has yet to be assigned by FLL, but it will likely be either November 23rd or December 7th and will take all day. If the team advances to the State Championships, they will also compete on December 14th.


Sign-ups for the Robotics Team takes place during the first week of school, at school.

For more information on this program, visit the CHS website or contact Ian Myers ( or Sarah Fortino (


Student Affinity Groups

CHS offers a number of optional Student Activity Groups for Upper School students at no cost. These meet before school or at lunch/recess throughout the school year. These include:

Students of Color Lunch Group
Students in the 4th-, 5th- and 6th-grade who identify as people of color are invited in the winter to participate in our Students of Color lunch group.

This group was developed to provide an opportunity for students of color to be in a space where they are not the demographic minority, where they can be in the company of students who share a social identity that is too often targeted for discrimination, and where they can interact with adults who reflect their identities.

We will provide information and explanation about the Student of Color group to all students in the Upper School. For more information on this program, please contact Dylan Gallegos ( or Eric Edwards (


Friends in Our Community (FIOC)
FIOC is an extracurricular student group for Upper Schools students focused on community service and supporting our school and larger community. Some of the projects we work on include the Winter Toy Drive, MLK Cereal Drive, and Spring Toiletry Collection. We also work to find ways to thank our community.

Occasionally, FIOC will take field trips after school to deliver collected donations. A form will be distributed in October to sign up for FIOC.
The group will meet in the Upper Science room at 7:25 a.m. on the following Thursday mornings: November 7th, December 5th, January 9th, February 6th, March 5th, and April 2nd.

​If you have any additional questions, please reach out to the FIOC facilitators, Ms. Rudek ( or Ms. Barnhart (