Grade 9 Students Study Statistics

In this final quarter our Grade 9 Mathematics students have undertaken the study of statistics. Students began by looking at a fun video reminding them of mean, median and mode and then they practiced calculating these measures of central tendency using exercises in their textbook and IXL.


The "stem" values are listed down, and the "leaf" values go right (or left) from the stem values.

The "stem" is used to group the scores and each "leaf" shows the individual scores within each group. 

In addition, to study the 'stem and leaf' and 'box and whisker' diagrams to display data, students engaged in stations where they collaborated, in breakout rooms, with peers to complete guided activities. They had productive but fun sessions working in these groups and then we gathered as a class to summarize findings.  

A special type of diagram showing Quartiles 1, 2 and 3 (where the data can be split into quarters) in a box, with lines extending to the lowest and highest values, like this:

Students are reminded that they should take notes during activities as we prepare for Grade 10. I have also been reinforcing the need for them to reflect on their learning and to this end they make an entry to their Jamboard at the end of most class sessions. 

Kelly Johnson