Starter quiz
- 48 ÷ 6 = ______
- '8' ✓
- 360 ÷ 10 = ______
- '36' ✓
- 432 ÷ 10 = ______
- '43.2' ✓
- 45 + 34 + 24 + 19 + 29 + 67 = ______
- '218' ✓
- The mean average is calculated by finding the total of the set of data and ______ by how many values there are.
- 'dividing ' ✓
- Here are the scores from Pine class’ spelling test: 10 9 3 10 What is the mean average score?
- 7
- 8 ✓
- 9
-
Exit quiz
Use the table to calculate Jacob’s mean average number of pages read. The mean average is ______- '12' ✓
Laura says: ‘Complete the table by working out how many pages I read on Friday.’ What is the missing value?- 10
- 19
- 20 ✓
- 21
-
Calculate the mean average of the number of pages Jacob reads over four days. The mean average is ______- '45' ✓
Calculate the mean average of the number of pages Sofia reads over ten days. The mean average is ______- '44' ✓
Look at the table. How many pages does Alex read on average?- Between 20 and 21 pages
- Between 21 and 22 pages ✓
-
Lucas and Laura are looking at the amount read by Sam. Lucas says Sam had read a mean average of 10 pages per day. Laura says Sam has read a mean average of 13.3 pages per day. Who is correct?- Lucas ✓
- Laura
-
Worksheet
Loading worksheet ...
Presentation
Loading presentation ...
Video
Lesson Details
Key learning points
- The mean value of a set of data is the total of the numbers divided by how many numbers there are.
- If a value in the set is zero it is still included in the calculation of the mean.
Common misconception
Some pupils may think that zero values do not need to be included when dividing by how many values there are in the set of data.
Show that even if a value is zero, it is still a value in the set of data. It doesn't affect the total of the set but does need to be included in the total number of values in the set.
Keywords
Mean average - The mean average is a single number expressing the typical value in a set of data. It is calculated by finding the total of the set of data and dividing by how many values there are.
Set of data - A set of data is a collection of facts, such as numbers, words, measurements, observations or even just descriptions of things.
+