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Computer Science · Grade 2

Puzzles & Patterns 2

Writing and testing algorithms, ScratchJr block programs, events and actions, predicting and fixing programs, and pictures stored as numbers.

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Units

  1. Unit 1 · reading, lab, activity, quick check, quick check, activity

    Algorithms and recipes

    Write exact steps for an everyday job, test them on someone who follows them to the letter, and fix what goes wrong.

  2. Unit 2 · reading, lab, activity, quick check, quick check, activity

    Programs with blocks

    Snap blocks together in order, use a repeat block, and make a character walk along a path.

  3. Unit 3 · reading, lab, activity, quick check, quick check, activity

    Events and actions

    Make a character do something when you tap it, or when two characters touch, by teaching a program to wait.

  4. Unit 4 · reading, lab, activity, quick check, quick check, activity

    Predict, run and fix

    Work out what a block program will do, run it, and use the difference to find and fix the bug.

  5. Unit 5 · reading, lab, activity, quick check, quick check, activity

    Pictures as numbers

    Colour a pixel grid from a list of numbers, then write the numbers for a picture yourself.