Topic Five (1.5): Significant figures
Introduction
You are now going to learn about significant figures.
Warm Up
First complete the skill checker on page 42.
If you need a refresher on rounding to decimal places, try watching this video:
Working through your course book
- Start by watching this video, which introduces the topic nicely:
- Read and make notes on pages 42-43, copying out the worked examples, if you think it will help you.
- Now see if you can answer the Band 2 questions on page 44.
- COMPLETE - 3.1 worksheet Significant figures
- If you would like more practice, then work through these lessons on the MyMaths website:
EXPLORE – Significant figures (MyMaths) Links to an external site. [Not available on sample course]
- You may also want to watch the following Corbettmaths video:
Plenary
You have a choice: you can end this lesson by playing a maths game, or watching a video (or even both, if you have time!)
Game-time!
Can you Beat the Clock with this rounding to significant figures game? The game is on slide 9:
PLAY – Significant figures (MyMaths) Links to an external site. [Not available on sample course]
Video
This video looks at how the accuracy that a speed is measured to will depend upon the situation:
WATCH – Rounding: Snails vs Rockets (Twig) [Not available on sample course]
Support activities for this topic
The Band 1 questions on page 43 will help build your skills on this topic.
Extension activities for this topic
If you would like more of a challenge on this topic, go to page 44 and attempt the Band 3 questions.
Check Your Answers
CHECK - 3.1 worksheet answers Significant figures