Suggestions for Follow-up Actions (KS3-DH3-1)
Possible problems in students' learning (for reference only)
- Students fail to take into account the corresponding frequencies of data when calculating the mean.
- Students forget to sequence the data before finding the median.
- Students have difficulty in finding the median when the number of data is even.
- Students fail to distinguish between the mean and the median.
- Students mistook the frequency as the mode.
- Students are uncertain of the concepts of mean, median and mode.
Suggestions for Follow-up Actions
| Name | Emphasis | Description | Problem addressed (see above) | Suggested duration (minutes) | Available for self - learning? |
|---|---|---|---|---|---|
Understanding Measures of Central Tendency - Mean |
Finding mean, median and mode from a set of ungrouped data | "Understanding Measures of Central Tendency - Mean" is a classroom activity in which students can acquire an understanding of the concept of mean and its calculation. | 
|
20 |  |
Understanding Measures of Central Tendency - Median |
"Understanding Measures of Central Tendency - Median" is a classroom activity in which students can acquire an understanding of the concept of median and its calculation. | 
|
20 | |
|
Understanding Measures of Central Tendency -Mode |
"Understanding Measures of Central Tendency - Mode" is a classroom activity in which students can acquire an understanding of the concept of mode and its calculation. | 
|
20 | |
|
Finding the Mean |
Finding mean, median and mode from a set of ungrouped data | "Finding the Mean" is a classroom activity in which students learn how to use software to draw statistical charts in order to find out mean, median and mode. | 
|
20 | |
Finding the Mean, Median and Mode |
"Finding the Mean, Median and Mode" is a classroom activity which helps consolidate students' knowledge. | 15 | |
* The list of possible problems is for teachers' reference only and is not meant to be exhaustive or prescriptive. Teachers can always adapt the activities/materials in order to cater for students' needs.
Other Resources
-
Education Bureau - Mathematics Education
http://www.edb.gov.hk/index.aspx?nodeid=2403&langno=1 -
Hong Kong Education City - Resources Library : Resources Bank > Junior Secondary > Mathematics Education > Mathematics > Secondary One > Analysis and Interpretation of data > Measures of Central Tendency
http://www.hkedcity.net/resources/ires/ires_browse.phtml?type=list&res_cat_id=2596 -
Hong Kong Education City - Resources Library : Resources Bank > Junior Secondary > Mathematics Education > Mathematics > Secondary Two > Analysis and Interpretation of data > Measures of Central Tendency
http://www.hkedcity.net/resources/ires/ires_browse.phtml?type=list&res_cat_id=2640 -
Hong Kong Education City - Resources Library : Resources Bank > Junior Secondary > Mathematics Education > Mathematics > Secondary Three > Analysis and Interpretation of data > Measures of Central Tendency
http://www.hkedcity.net/resources/ires/ires_browse.phtml?type=list&res_cat_id=2684 -
Education Bureau - Stat.Net
http://www.hked-stat.net/common/index.htm -
Census and Statistics Department
http://www.censtatd.gov.hk/ -
Hong Kong Observatory
http://www.weather.gov.hk -
Environmental Protection Department
http://www.epd.gov.hk/epd/ -
Website on Climate Change
http://resources.edb.gov.hk/envir-ed/globalissue/c_m2_1_1.htm -
The Royal Statistical Society
http://www.rss.org.uk/ -
Statistics Canada - Education Resources
http://www.statcan.ca/english/edu/index.htm
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