Algorithms
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Thinking Like a Computer: Algorithms Basics

Build the core idea from scratch with gentle steps and lots of hints.

Computer Science · Beginner

5

questions · ~4 min · 3 hints each (−5 pts)

Confidence tracking, 3-tier hints and instant feedback.

What you'll learn

Each question helps you build key knowledge and skills.

  • 1An algorithm is a precise set of steps written in order to solve a problem or complete a task.
  • 2Computational thinking breaks a big problem into smaller parts, spots patterns, ignores unimportant detail and designs a step by step solution.
  • 3Flowcharts use standard shapes such as ovals for start and end, rectangles for steps and diamonds for decisions to show an algorithm visually.
  • 4Pseudocode is a way of writing an algorithm using simple English like structure instead of a real programming language, so it is easy to read and plan with.
  • 5Searching and sorting algorithms, such as linear search and bubble sort, are common algorithms that follow clear repeatable steps.

Question mix

A mix of question types to build your skills.

  • Multiple choice×4
  • True / False×1

Different question types help you think in different ways.

How it works

A simple 3-step process

  1. 1

    Rate your confidence

    Tell us how sure you feel before answering. It helps us understand your starting point.

  2. 2

    Use hints if stuck

    Get up to 3 helpful hints per question. Each hint costs 5 Treasure Points.

  3. 3

    See what went wrong

    Get instant feedback with clear explanations, so you can learn and improve.

Ready when you are

This takes about 4 minutes.