PrepStudioCo

Toronto, Ontario

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AP Computer Science A Flashcards | Java Study Cards for AP Exam PDF

Sale Price CA$8.99

Original Price CA$11.99 (25% off)

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AP Computer Science A Practice Worksheet | 8 Java OOP Problems + Answer Key PDF

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Big O Notation Cheatsheet PDF | Time & Space Complexity Quick Reference

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Java Data Structures Cheatsheet PDF | Arrays, Lists, Maps, Trees Reference

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Ontario ICS4U Computer Science Flashcards | Curriculum-Aligned Study Cards PDF

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Ontario ICS4U Key Definitions Study Sheet | Computer Science Terms & Examples PDF

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Ontario ICS4U Computer Science Study Guide | Grade 12 Curriculum-Aligned PDF

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Python OOP Practice Worksheet | 8 Classes & Inheritance Problems + Answer Key PDF

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Arduino Beginner Practice Worksheet | 8 GPIO & Sensor Problems + Answer Key PDF

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Beginner Python Practice Problems | 10 Exercises with Answer Key | Adult & Teen PDF

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Couples Budget Planner PDF | Joint Finance Tracker for Shared Expenses

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14-Week Semester Study Planner | Countdown Printable | Study Hours + Confidence Tracker PDF

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17-Week Semester Study Planner | Countdown Printable | Study Hours + Confidence Tracker PDF

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Java Loops Practice Worksheet | 8 Beginner Problems + Answer Key PDF

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Java Practice Problems Worksheet | 8 Intermediate Problems + Answer Key PDF

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Python Data Science Cheatsheet PDF | NumPy, Pandas, Matplotlib Quick Reference

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Python Debugging Cheatsheet PDF | Error Types, pdb Commands & Bug Patterns

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Python Debugging Practice Worksheet | 8 Find-the-Bug Problems + Answer Key PDF

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Python Debugging Practice Workbook: Debug & Fix Broken Code Exercises with Solutions

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Python Loops Practice Worksheet | 8 Problems for Beginners + Answer Key PDF

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Python Practice Problems Workbook | Graded Exercises from Beginner to Advanced

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Subject-Specific Study Planner with Progress Tracker & Memory Aids

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Zero-Based Budget Planner PDF | Monthly Spending Plan Printable

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Exam Study Planner | 4-Week Countdown Printable | Study Hours + Confidence Tracker PDF

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Python Cheat Sheet for Beginners | Syntax Quick Reference PDF | Variables Lists Loops Functions | Printable

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ICS4U Exam Practice Quiz | Ontario Grade 12 Computer Science (PDF Download)

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Daniel Edelstein

About PrepStudioCo

Study tools made by a McMaster engineering student

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On Etsy since 2026

Study tools made by a McMaster engineering student

Study tools built by a McMaster engineering student, made from my own exam prep.

PrepStudioCo started from my own study binder. Between AP Computer Science, ICS4U, and every other exam I had to prep for before university, I kept rebuilding the same kind of tools over and over: flashcards that actually match the curriculum, practice sheets with real answer keys, cheat sheets I could glance at the night before a test.

Eventually I figured other students could use the same stuff instead of starting from scratch. Everything here is built the way I'd actually want to study: no filler pages, no padded page counts, just the material that gets you ready.

I'm one person running this shop, so if there's a topic or format you wish existed, message me. I read everything.

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