CRES Before and After School Activities 

** REGISTRATION OPENS on Sept 10th **




  Monday Tuesday Wednesday Thursday Friday

8:00 -

9:00 AM



 Design Squad (3-6) 


 Crocheting (3-6)


 Coder Kids (3-6)

 Design Squad Jr. (1-2)

 Run Club - starts at 8:15 AM (3-6)



4:15 -

5:15 PM

 Lego Robotics (K-2, 3-6)


 Chess - ends at    5:45 PM (2-6)


 Art – Watercolors (3-6)

 Coder Kids Intro (K-3)

 Stemtree Science (1-6)

 Art – Watercolors (3-6)

 MathCounts (6th only, Oct start)

Chinese - ends at 5pm 



See below for Fall Class Descriptions  



Register Here 



Fall registration runs Sept 10-23 (Classes run between Sept 24 - Dec. 1*)

*Actual end dates depend on the length of the session (6-, 8-, and 10-class sessions are offered) 



Other questions? Email:


FALL Class Descriptions


Art - Watercolors                                                                                  

Wednesdays -or- Thursdays 4:15-5:15p 

Instructor: Ms. Katerina Perfilieva

$195 for 10 sessions (materials included)  

This class will give the students an opportunity to compare two wonderful media: watercolor and acrylic paints. Kids will be introduced to the media, their techniques and applications, while creating original work based upon themes each week. Students will have the opportunity to improve their skills in a small group (10 kids is maximum capacity for this class) and enhance their appreciation for various elements of art and the art world (e.g. color, texture, perspective, etc.). Max 10 students.


Grades 3-6 

Location: Art POD

*Wed. Dates:  9/26, 10/3, 10/10, 10/17, 10/24, 10/31, 11/7, 11/14, 11/28, 12/5

*Thurs. Dates: 9/27, 10/4, 10/11, 10/18, 10/25, 11/1, 11/8, 11/15, 11/29, 12/6




Every Tuesdays 4:15-5:15p 

Instructor: Coach Mehler

$210 for 16 sessions (materials included)  

Coach Mehler returns to coach the CRES Chess Club.  This club is offered in two 16-class sessions, every Tuesday that school is in session.  Students move from learning the basics of chess to a variety of competition levels with their peers.  Several tournaments will be offered throughout the year.  All levels of experience welcome.  Please note that this class runs until 5:45pm and for two 16-class sessions.  Registration is off cycle but opens with the fall and winter registrations.  Max 60 students.


Grades 2-6.

Location: Cafeteria

*Tues. Dates:  “If there is school on a Tuesday, there is Chess” – Coach Mehler


Session I (16): 9/25, 10/2, 10/9, 10/16, 10/23, 10/30, 11/13, 11/20, 11/27, 12/4, 12/11, 12/18, 1/8, 1/15, 1/22, 1/29 (Registration in the fall)

Session II (16): 2/5, 2/12, 2/19, 2/26, 3/5, 3/12, 3/19, 3/26, 4/2, 4/9, 4/23, 4/30, 5/7, 5/14, 5/21, 5/28 (Registration opens with the winter BASA registration, open until 2/1)



Fridays 4:15-5:00 PM  (Note End time of 5 PM)

 Instructor: Dr. Qi Xing  

$105 for 6 sessions (materials included) 


Last Spring's popular Chinese language, arts and crafts is back.  Would your like to learn Chinese language, to know Chinese culture, to taste Chinese food and to meet new friends?  Come and join us for the BASA Chinese class!  This six-session class will offer an enjoyable way to cover topics such as greetings, family, animals, numbers, colors, etc.  Students will learn Chinese songs, make crafts, practice eating with chopsticks and write some simple characters!

Location: Library. Max 12 students.  

K-2nd grade.

6 Classes: 10/5, 10/12, 10/26, 11/2, 11/9, 11/16 (NO CLASS ON OCT. 19)


Coder Kids                                                                        

Wednesdays 4:15-5:15p (Intro Coder Kids) or Thursdays 8:00-9:00a (Coder Kids)

Instructor: Coder Kids

$165 for 8 sessions (materials included)  


Coder Kids is back with some new and advanced offerings for returning students.  Coder Kids lays the foundation for exploratory learning in computer science and has a core CRES offering of 3 platforms based on experience and interest.  


On Wednesdays, in Coder Kids Intro, students will learn basic principles of algorithmic thinking and problem solving through Kodable (platform #1), a fun visual programming app that helps children build a strong foundation for their coding journey.  Kids with some coding exposure, but still interested in the Intro Coder Kids class on Wednesday, can opt to explore Scratch (platform #2), a program designed by MIT and Harvard, where students will learn to design, implement and test their own animations, stories and games.  


Suggested for Grades K-3 (no coding experience needed); Max 16 students

Location: 2nd Floor Computer Lab

*Wed. Dates:  9/26, 10/3, 10/10, 10/17, 10/24, 10/31, 11/7, 11/14 


On Thursdays, in Coder Kids, kids with some coding experience can choose to deepen their experience with Scratch, learn to design Minecraft Mods using Java (platform #3) to personalize their Minecraft worlds, or chose from one of the new offerings:


*NEW* this year based on interest: Coder Kids has expanded offerings for our most experienced coders.  Kids can choose to explore (a) Web Master, to create your own website, (b) Roblox Coding, to create your own Roblox game while learning Lua, the coding language used in many popular video games, or (c) Python Coding, to learn the coding language used by data scientists and cyber security specialists.  IMPORTANT: Please note we are limited to 2-3 programs on Thursday so will only be able to accommodate 2-3 platforms in a single session. Enrolled students will be polled prior to the beginning of the course so that we can staff the appropriate Coder Kids instructors based on interest.


Suggested for Grades 3-6 (Scratch, Minecraft/Java, Web Master, Roblox/Lua, Python).  Max 30 students.

Location: 2nd Floor Computer Lab

*Thurs. Dates: 9/27, 10/4, 10/11, 10/18, 10/25, 11/1, 11/8, 11/15




Wednesdays 8:00-9:00a 

CRES Instructor: Ms. Matthews

$120 for 8 sessions (materials included)   

Mix learning a lifelong skill with service learning!  Students select a personal project of interest (scarf, blanket, etc.) while also participating in a community donation of blankets. Students will learn basic crochet stitches, common motifs and patterns as they plan their own creations.  Max 12 students.


Grades 3-6.  

Location: Ms. Matthew's 2nd floor room.  

*Wed. Dates:  9/26, 10/3, 10/10, 10/17, 10/24, 10/31, 11/7, 11/14



Design Squad Global                                       

Tuesdays (DSG) or Thursdays 8:00-9:00a (DSG Jr.)

CRES Instructors:  Ms. Blackwell, Ms. Allen, Ms. Ruffner

$95 for 6 sessions, materials included 


Design Squad is back with 6 NEW hands-on challenges for each season!  This STEM inspired program sparks the inventive spirit of kids to think about how creative inventions can address problems and help build a better world.  In the Fall, students will tackle six hands-on challenges from “On the Moon,” a NASA and Design Squad® program to get your kids thinking like engineers and excited about NASA’s missions to the moon.  The challenges include: Launch it, Touchdown, Roving the Moon, Heavy Lifting, On Target and Feel the Heat.  Winter and Spring seasons of CRES’s Design Squad will include challenges from (1) ‘Inventing Green,’ which will focus on engineering and environmental sustainability and (2) ‘Adaptive Technologies,’ which will focus on how science, technology, engineering, and math can help people overcome various kinds of physical or environmental limitations. 


Tuesday AM in STEAM lab (DSG) for Grades 3-6; Max 12 students

Thursday AM in the 3rd Grade POD/outside STEAM lab (DSG Jr) for Grades 1-2, K upon request.  Max 10 students.

*Tues. Dates: 9/25, 10/2, 10/9, 10/16, 10/23, 10/30

*Thurs. Dates: 9/27, 10/4, 10/11, 10/18, 10/25, 11/1



Lego Robotics                                                                                                         

Mondays 4:15-5:15p

Instructor: Fairfax Collegiate 

$195 for 8 sessions, materials included


WeDo Robotics introduces young students to simple robotics systems. Students will build Lego models with functional motors and sensors, and learn how to control them with basic programming skills. Through a variety of tasks and activities, students get a chance to learn and gain confidence with simple robotics skills before moving on to more advanced concepts. Grades K-2. Max 20 students.


In Fairfax Collegiate's LEGO EV3 Robotics platform, students design, construct, and program their robots to perform in sensor-based challenges, as well as robotic competitions. Initial student projects include hill climbing, beacon retrieval, color sensor navigation, and robot combat. Advanced programming and more complex robotics tasks are available for students ready for additional challenges. Students with any level of robotics experience are welcome to join. Students with prior EV3 experience, at Colvin Run or elsewhere, will be given the option of an advanced program.  Grades 3-6. Max 20 students. 


Location: Cafeteria. 

*Mon. Dates:  9/24, 10/1, 10/15, 10/22, 10/29, 11/12, 11/19, 11/26




Thursdays 4:15-5:15p

Instructors: T. Bhatia

$160 for 15 sessions

MATHCOUNTS at CRES is a math enrichment program for 6th graders that provides the opportunity to compete in live, in-person contests against and alongside their peers. Mathcounts Competition Series is a national program that promotes middle school mathematics achievement and provides exposure to competition math. Coaches cover concepts ranging from: arithmetic, algebra, geometry, probability, quadratics, number theory and more. Students will also imitate the 4 levels of competition through Sprint, Target, Team and Countdown rounds. Note: Registration only in Fall (classes continue into Winter Session).  Max 25 students.


Grade 6 Only.

Location: Ms. Ellenbogen's Room  

*Thurs. Dates: TBD - Starts in October AFTER Academic Team night



Run Club                                                                                                                

Thursdays 8:15-9:00a  

CRES Instructors: K. Bunch, J. Seiler, T. Abernathy

$150 for 8 sessions (tee-shirts included, registration for the extra 5K is not included)  

Come Thursday mornings this Fall to train as part of the Colvin Runners.  Students build endurance and confidence, and learn to push themselves further than they thought possible, while having fun with their friends.  The students will build towards a timed 5K by the end of the session, where the students can wear their well-earned Colvin Runners shirts as a team.  Please note 8:15 am start time.  Max 50 students


Grades 3-6.

Location: Check-in front lobby and move to CRES fields.  

*Thurs. Dates: 9/27, 10/4, 10/11, 10/18, 10/25, 11/1, 11/8, 11/15


Stemtree Science Club 

Wednesdays 4:15-5:15p

Instructors: Stemtree Science Center

$195 for 8 sessions, materials included

Come explore science with Stemtree!  In this class, students will learn the fundamental concepts behind scientific theories and apply them through hands-on activities and experiments.  Students will take an initial assessment in the first class so that instructors can create a customized learning program for every child.  Each class will be divided equally between individual Instruction and hands-on activities.  Concepts covered include: scientific investigation, physical sciences (matter, sounds, magnets), and life sciences (life processes and living systems).  Experiments will be conducted in groups based on age. Max 18 students.


Grades 1-6.  

Location: TBD (Tentative: Art Room)

*Wed. Dates: 9/26, 10/3, 10/10, 10/17, 10/24, 10/31, 11/7, 11/14