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Thursday 7th May

Hi Year 6!


Welcome to the final maths of the week, and the last one that is about grouped data.


First, thanks for your "Hello" videos, they are making me smile!


Second, thank you if you sent me your birthday bar chart yesterday. Take a look at them below. It's interesting to see the difference it makes when you choose a particular type of grouping. The graphs that use 3 months for each group look rather different from those that use 4 months per group, even though the data is exactly the same. There's a lesson to be learned there about how sometimes graphs and charts can be misleading, and I think we will investigate this idea later in the topic. Here are the graphs:

Josh B
Josh Hill
Josh Hughes

For today's lesson, you can use the same online graph website that you have used for the last two days, but this time using different data, which offers you more choice.


Below is a file containing the final Premier League table from last season. I know not all of you follow football, but you don't need to be a football fan to do this task! The table has got lots of lists of numbers which tell you how well all the teams did in their matches last season.


Each column has a heading; here's what they mean:


#: this shows you the position of the team in the league.
Team: Team name
Pl: Number of games played (all the same, because this is the end of the season)
W: Number of games won
D: Number of games drawn
L: Number of games lost
F: Goals scored (for)
A: Goals let in (against)
GD: Goal difference; this is the difference between the number scored and number let in
Pts: Points


Here's the file with the league table:

Premier League table 2018-19

Your task is to choose one of the columns, and construct a grouped bar chart based on that set of numbers. For example, you could base your graph on the number of goals scored by each team, which is the "F" column. When you choose your grouping, think carefully about what range to use in each group; finding the lowest and highest number in your column could help with this. For example, you could have a group for the teams that won 1-7 matches, then 8-14 etc. But it's your decision which column to use, and how to group the data. Don't use the played column though; your graph would be very boring!


Optional: if you enjoy this activity and want to do more than one bar chart, then you can choose another column and do a second one. But only one is required!


Here's a link to the web app to construct your grouped bar chart:


As always I'd be pleased to have pictures of your finished work. The usual email address is:


Thank you for doing this lesson, and enjoy the bank holiday weekend. See you Monday!


Mr M