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After-School Coding and 3D Printing


Coding, with many applications including robotics, is rapidly revolutionizing the fields of technology, medicine, education, and more! Boys and girls in grades 4 – 8 are invited to join us after school to experiment with and learn these cutting-edge skills. Master coding basics through animations and games, learning the languages of Python and Java- Levels 1 or 2. Separate classes for boys and girls.

3D Printing

Explore the world of 3-D modeling and printing, including inventions, art, and toys with engineering and CAD design.

Girls Coding – Level 1 & 2 Tuesdays & Thursdays 4:45 – 5:45 PM
Girls 3-D Printing – Beginners Tuesdays & Thursdays 4:45 – 5:45 PM
Girls 3-D Printing – Advanced Mondays & Wednesdays 4:45 – 5:45 PM
Boys Coding – Level 1 Tuesdays & Thursdays 4:45 – 5:45 PM*
Boys Coding – Level 2 Tuesdays & Thursdays 6:00 – 7:00 PM
Boys 3-D Printing – Beginners Mondays & Wednesdays 6:00 – 7:00 PM
Boys 3-D Printing – Advanced Tuesdays & Thursdays 6:00 – 7:00 PM
* This class takes place via Zoom.
Spring: March 11 – June 6 (10 weeks). No class April 15 – May 2 for Pesach.


$180 for 10 weeks twice per week, siblings join for $135. $20 late registration fee applies if registering after February 25. Need-based scholarships are available upon request. Students are welcome to try the first class at no charge.

Programs are included for Walder Science members. Visit our membership page for details.


Transportation option is now available! $80 per student for 10 weeks, twice per week.

Sign Up

Pre-registration is required so that we can be prepared with staff and supplies for the right amount of students. For more information, please email us at programs@walderlab.org or give us a call at 773-649-5360.