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Y07 Unit 1 Lesson 4: Decomposition

Total questions: 9

Worksheet time: 5mins

Name
Class
Date
1.
An algorithm is the sequence of of instructions or a set of rules to get something done.
a)
True
b)
False
2.
Which of these would not be involved in decomposing a problem?
a)
Thinking about how the problem could be divided into smaller parts
b)
Working out who could help you solve a part of the problem
c)
Adding more parts to the problem so it becomes more complaex
3.

What is decomposition?

a)

Adding detail to make a problem more complex

b)

Breaking down a complex problem or system into smaller, more manageable parts

c)

When you ignore the unnecessary detail in a problem

4.

Which of these is an example of decomposition?

a)

Watching a mechanic repair a car

b)

Finding out how a car works by looking in detail at the different parts that make up the car

c)

Looking at different car models for similarities between them

5.

How often do we decompose problems?

a)

We never decompose them, computers do this for us

b)

Occasionally, but we don't really need to

c)

Every day, often without thinking about it

6.

Which of the following should you identify when decomposing a situation?

a)

Referees

b)

Players

c)

Actors

d)

Spectators

7.

Which of these describes 'get a brush' if asked to decompose 'brushing your teeth'

a)

Clear

b)

Not specific

c)

Its fine

d)

Specific

8.

Which of these best descibes an action when 'brushing your teeth'

a)

Put toothpast on the toothbrush

b)

Squeeze toothpaste on to the toothbrush

c)

Squeeze toothpaste onto the bristles of the toothbrush

d)

Squeeze a pea shaped size of toothpaste onto the bristles of the toothbrush

9.

'Squeeze a peas sized amount of toothpaste onto the bristles of a toothbrush' is a good instruction because (tick all that you think are correct)

a)

It is specific

b)

it gives an idea of size

c)

it talks about the actions the actors should use

d)

All of the above

e)

None of the above