Hexadecimal

Lesson Instructions

Watch and follow the YouTube video, the lesson contains three parts:

Key Information and content - all you need to do here is watch and listen
Learning activity - there are two activities, both are quizzes. One quiz is converting between hexadecimal and binary, the second quiz is converting between hexadecimal and denary, you may want to do your working on paper.
Consolidation - these are past exam question and are for deliberate practice to check your understanding.

Hexadecimal Full Lesson Video.mp4

Task - Hex to Binary Quiz

Task - Hex to Denary Quiz

Task - Exam Questions - Deliberate Practice

Exam Questions - Hexadecimal Conversions

Mark Scheme

Question 1 (a)

Green = 3A
Blue = 9C

1 mark for each correct

Question 1 (b)

1 mark per bullet max 1

Easier to remember / to enter / to read
Faster to enter / read
Fewer digits to remember / to enter / to read
Less prone to error when entering / reading / communicating
Quick to convert into binary

Do not accept "easier to understand"

Question 2 (a)

8F

1 mark per nibble

Question 2 (b)

1110 0010

1 mark per nibble

Question 2 (c)

1 mark per bullet to max 2

Easy / fast to convert to / from binary....
....4 bits represented by one hex character
Faster / more reliable to communicate / enter / write down / read.

Do not accept "hex is smaller" without further clarification of why this is a benefit.

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