Tuesday, 9 April 2013

Reflection - 6 April 2013

Today we learnt about graphing. Graphing helps us to collate, group, present  and analyze data.

To make graphing more meaningful for children, we need to reflect real things and get them personally involved. I have come to realise that  the objectives on doing graphs should be focused on analysis and communication rather than the technique. (pg 441).

In the graph that we did in class, we collated information of our various ages. We created a picture graph, using tiles with  a range of ages, made up of the following:
a) between the ages of 20 -29 = 14 students
b) between the ages of 30-39  = 10 students   
c) between the ages of 40-49  = 16 students
d) between the ages of 50-59  =   5 students

Here I learnt that continuous data is converted to discreet data. An example of this is the range of the ages of people.
The limitation in deriving this kind of information is that although a majority of us fall under the 40-49 age group, we could not tell for certain which was the average age amongst us and which is the exact number of people for each age.

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