American computer science league

What is American Computer Science League?

American Computer Science League (ACSL) organizes computer programming and computer science contests for K-12 schools, organizations and local groups.  

Why Join ACSL? ACSL gives students a fun way to explore coding and logic puzzles through four short online contests they complete independently from home. It builds confidence, strengthens STEM skills, and lets McNair shine as a leader in computer science education. 

Learn More: https://www.acsl.org/

Elementary Division

Open to students in grades 3 - 6. 

Each contest consists of an online 30-minute, 6-question non-programming test, focused on a single category of content.  A different category will be tested on each contest. 

For any further questions please send an email to acsl@mcnairespta.org. 

What Parents Should Know

• No Prior Coding Needed: Focuses on mathematical logic,   binary numbers, and step-by-step algorithms. 

• Format: 4 online non-programming contests (30 minutes each) taken independently at home. 

• Rules: Scratch paper and pencil only — no calculators or outside assistance permitted.

• Study Materials: Free practice problems and study guides are provided on the ACSL Wiki.

• Contests are taken online at home anytime before the closing deadline.