While many organizations offer these, here are the gold standards for computational thinking:
The single most effective tool in your arsenal? Here is why they are essential and how to use them to sharpen your edge. Why Past Papers Are the Ultimate Resource computational and algorithmic thinking past papers
Most past papers provide sample input/output. Use assert statements to verify your code passes the official samples. While many organizations offer these, here are the
In computational thinking, the answer is often less important than the used to get there. If a past paper asks you to find the quickest way to sort a stack of cards, don't just find the answer for that stack. Try to write down a set of rules (an algorithm) that would work for any stack of cards. Use assert statements to verify your code passes
For those at a more advanced level, their past problems focus heavily on complex algorithmic implementation. Top Tip: Focus on the "Why," Not the "What"
Don't just rush through the questions. To truly improve, follow this structured approach: Step 1: The "Blind" Attempt
Working through past examination papers is the most effective way to prepare for competitions (such as the Oxford University Computing Challenge or the Bebras Challenge) or university entrance exams. Benefits include: