Don't be mean! Week beginning 13th Feb 2023.

I hear your cry, 'Don't be mean! You're giving us learn by hearts AND first term assessments!' Cheer up guys, this week, doing mean is where we're at! 

Mean means average. When you are working with data in tables and charts, you sometimes need to be able to work out the average (or mean) of a set of data. You do this simply by adding the numbers together then dividing by how many there are. Look at this example: 

Kelly got the following scores on her spelling tests over 5 weeks: 

1, 2, 3, 1, 3 (oh dear, not very good at spelling)... to work out the mean... 

1) I add the numbers together 1+2+3+1+3= 10 

2) I divide 10 by how many scores I had... 10 divided by 5 equals 2. My mean score was 2.  

Try these games https://www.bbc.co.uk/bitesize/topics/zm49q6f/articles/z99jpbk

https://www.math-salamanders.com/mean-worksheets.html#Worksheets1- worksheets on here 

https://www.mathsisfun.com/mean.html