Y8 Homework Weeks 3-4

What is the definition of Decomposition?

• breaking down a complex problem into smaller, more manageable parts

• looking for similarities among and within problems

• focusing on the important information only

• developing a step-by-step solution to the problem

Answer explanation

In Computational Thinking / Problem Solving decomposition means to break down a problem.

If 1 is equal to 3 and 2 is equal to 3, what is 3 equal to?

• 4

• 5

• 6

• 7

Answer explanation

One & two = three because there are 3 letters in the words. So in the word three there are 5 letters!

What is the definition of algorithm?

• Breaking down a complex problem into smaller, more manageable parts

• Looking for similarities among and within problems

• Focusing on the important information only

• Developing a step-by-step solution to the problem

Answer explanation

An algorithm is a set of instructions (step by step), you follow to solve a problem.

What is the definition of pattern recognition?

• Breaking down a complex problem into smaller, more manageable parts

• Looking for similarities among and within problems

• Focusing on the important information only

• Developing a step-by-step solution to the problem

Answer explanation

Pattern Recognition is where you need to look for similarities in the problem to help you solve it.

What letter is next in the sequence: JJAS

• O

• F

• J

• D

Answer explanation

This is where you need to use Pattern Recognition: June, July, August, September and...

Odd one out: green, yellow, red, blue?

• Green

• Yellow

• Red

• Blue

Answer explanation

Primary colours?

What is the next letter in the sequence: bcdfgh__?

• H

• I

• J

• K

Answer explanation

This is a tough question BUT again you all know this! The given list is a sequential list of CONSONANTS. The next is J.

What is the result of computing +3 in the Caesar Cipher for the given text?

• Erpsxwlqj

• Fspsxwlqj

• Frpsxwlqj

• Frqsxwlqj

Answer explanation

This is the Caesar Cipher where there is a shift of three! So C becomes...

Missing in sequence: u i e

• O A

• A I

• I O

• U E

Answer explanation

The hint is VOWELS!

What is the definition of abstraction?

• breaking down a complex problem into smaller, more manageable parts

• looking for similarities among and within problems

• focusing on the important information only

• developing a step-by-step solution to the problem

Answer explanation

Abstraction is when we are problem solving we are focusing on the important information only and ignoring the irrelevant information.