Give your AP Computer Science A students the recursive thinking practice they need to succeed on the exam. Recursion is guaranteed to appear on the AP CS A exam every year — this worksheet builds the tracing skills to handle any recursive problem confidently.

⭐ WHAT'S INCLUDED:

• 20 code tracing exercises across 4 sections
• Section A — Base Cases & Simple Recursion
• Section B — Power, GCD & String Recursion
• Section C — Digit Operations & Reversals
• Section D — Classic Algorithms & AP Challenges
• Full answer key with explanations — teacher use only

⭐ SKILLS COVERED:

• Identifying and tracing base cases
• Call stack tracing
• Factorial, sum, and Fibonacci
• String recursion (palindrome, reverse)
• Recursive power and GCD (Euclidean algorithm)
• Digit sum and binary conversion
• Binary search (recursive)
• Tower of Hanoi
• Recursive patterns and tribonacci

⭐ PERFECT FOR:

• AP CS A Unit 10 practice
• FRQ preparation
• Bell ringers and warm-up activities
• Test and quiz review
• Sub plans

⭐ DETAILS:

• Grade level: 9–12
• Time: 40–60 minutes
• Format: Printable PDF — works digitally too
• Language: Java
• Answer key included on a separate page

This is Pack 10 of the AP CS A Code Tracing Series. Collect all 10 packs or grab the complete bundle!