Friday 5 June 2015

Barmy Bar Graphs

Today in Room 6 we used our tally charts from last week to make a bar graph.

Last week we walked out near the gates by the road patrol crossing and sat inside near the seniors playground. From there we could watch the cars driving past on the road outside school. We drew up a tally chart for different coloured cars and investigated the probability of different colours.

Today we used that tally chart to make a bar graph in our maths books. We learnt about the axis which are the lines on the graph at the side and at the bottom. Then we added the outcomes (the different colours) and the frequency (the number of cars in each colour).






After that we were able to draw out the bars of the bar graph to show how many cars in each colour drove past us. We had to make sure that we were following the straight lines, using our rulers and folllowing the blue squares in our maths books to keep the bar graph neat and easy to read.

After we drew the bars into the graph, we coloured them in using the car colours!

Here are some excellent bar graphs that some of the boys in Room 6 drew.


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Left - Tristan, middle - Taniela and right - Jazer

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