KS3 Level 
Handling Data 
Projected KS4 Grades 

5 
I can decide on the type of data appropriate for data collection. 
I can construct a frequency table for discrete data including quantitative and qualitative data. You understand the reasoning between using grouped and ungrouped data and the advantages and drawbacks of grouping data in particular ranges. 
9 
4 
I can draw and produce stem and leaf diagrams. 
I understand the differences between the three averages and can determine which one is appropriate to use with discrete data. 
8 
3 
• You can find and justify probabilities for outcomes of an event, based on equally likely outcomes 
You can calculate experimental probabilities by collecting data from a simple experiment and recording it in a table. 
7 
2 
I can decide on the type of data appropriate for data collection 
• I can construct bar charts for discrete data, include grouped data. 
6 
1 
I can compare differing sets of data using the range, median and mode 
I can identify that the mode is represented by the largest section/tallest bar. I can interpret and/or compare bar graphs and frequency diagrams which are misleading (with false origins, different scales etc.) 
5 
WT+ 
I can describe the likelihood of familiar events using the language of probability (e.g. even, unlikely, etc.). I can use the key probability words and know how these apply to the probability scale from 0 to 1. I can use probability vocabulary when interpreting results from and experiment 
I can identify all of the mutually exclusive outcomes of a single event and list them in a systematic way. I can then extend to exploring and recording outcomes for two or more successive events in a systematic way eg. a two way table or a frequency table 
4 
WT 
I can determine the difference between a statement and a question and know the meaning of the term ‘hypothesis’ 
I can construct pictograms where each diagram represents one unit or more than one unit 
3 
WT 
1/2 
Each KS3 level can be subdivided into:
Heaton Manor School & Sixth Form
Jesmond Park West
Newcastle Upon Tyne
NE7 7DP
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