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Class 6 · Computational Thinking and AI worksheet

Simple Pattern Recognition and Decision Making

CBSE Computational Thinking and AI. Patterns in routines and data, rule-based sorting, which rule fits the examples, nearest-neighbour labels. Every sheet has 20 questions in three sections and an answer key, and the questions change every time.

Open a printable sample sheet

Sample questions

Real questions from this chapter, as the app sets them. Tap Answer to see the answer and working.

Section A · multiple choice

  1. 1.

    Using what we have seen before to decide what to do is:

    1. debugging
    2. decomposing
    3. guessing at random
    4. making a decision from observations
    Answer

    (d) making a decision from observations

  2. 2.

    A parcel sorter uses: Rule 1: if weight > 15 kg, label "Heavy". Rule 2: otherwise, if length > 60 cm, label "Long". Rule 3: otherwise, label "Small". (Check the rules in order.) A parcel weighs 26 kg and is 100 cm long. Which label does it get?

    1. Small
    2. Long
    3. Heavy and Long
    4. Heavy
    Answer

    (d) Heavy

    26 > 15, so Rule 1

  3. 3.

    A parcel sorter uses: Rule 1: if weight > 10 kg, label "Heavy". Rule 2: otherwise, if length > 60 cm, label "Long". Rule 3: otherwise, label "Small". (Check the rules in order.) Parcels (weight, length): (1 kg, 115 cm), (16 kg, 115 cm), (11 kg, 40 cm), (13 kg, 50 cm), (12 kg, 65 cm). How many are labelled "Long"?

    1. 3
    2. 0
    3. 2
    4. 1
    Answer

    (d) 1

    Long, Heavy, Heavy, Heavy, Heavy

Section B · short answer

  1. 4.

    What is a decision tree?

    Answer

    A diagram of yes/no questions (rules) where each answer leads down a branch to a decision.

  2. 5.

    A parcel sorter uses: Rule 1: if weight > 30 kg, label "Heavy". Rule 2: otherwise, if length > 60 cm, label "Long". Rule 3: otherwise, label "Small". (Check the rules in order.) A parcel weighs 24 kg and is 40 cm long. Which label does it get?

    Answer

    Small

    24 is not more than 30; 40 is not more than 60, so Rule 3

Section C · long answer

  1. 6.

    Draw (in words) a decision tree to decide what to wear: Is it raining? Is it cold? Give the four possible decisions.

    Answer

    Raining? Yes → Cold? Yes: raincoat and sweater; No: raincoat. Raining? No → Cold? Yes: sweater; No: light clothes.

Fresh sheets for your child

In the app, every Simple Pattern Recognition and Decision Making sheet is new: the app remembers the questions your child has already had and leaves them out. Print the sheet as a PDF, or use notebook mode and write the answers in a notebook.

Coming soon for Android and iPhone.

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