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YEAR 9 (ma4)

Specifying a problem, planning and collecting data

Processing and representing data

Interpreting and discussing results

Probability


Specifying a problem, planning and collecting data        Top

Y9 Objectives

Resources

Suggest a problem and identify questions/conjectures

 

Discuss how data relates to problem and sources of data

 

Identify possible sources of bias and how to minimise

 

Plan/design survey/experiment to capture data

 

Design, trial and refine data collection sheets

 

Construct tables for large sets of raw data 

 

Design and use two-way tables

 

Gather data from specified secondary sources

 

Identify extra info. needed to pursue further enquiry

 


Processing and representing data                                  Top

Y9 Objectives

Resources

Calculate and select appropriate summary values

 

Find the median for large data sets

 

Estimate the mean for large sets of grouped data

 

Construct frequency polygons (ICT)

 

Use bar charts and frequency diagrams (ICT)

P  pie charts

Construct simple line graphs (ICT)

 

Construct scatter diagrams and discuss correlation (ICT)

W  Correlation

Identify the most appropriate representation of data

 

Identify the key features present in the data

 


Interpreting and discussing results                                  Top

Y9 Objectives

Resources

Interpret tables, diagrams and graphs - relate to problem

P    scatter diagrams

Analyse data to find patterns and exceptions

 

Look for cause and effect and try to explain anomalies

 

Compare 2+ distributions using shape, range and average

 

Communicate interpretations/results of a statistical enquiry

 

Examine critically the results of a statistical enquiry

 


Probability                                                                          Top

Y9 Objectives

Resources

Use vocabulary of probability

W  bags   W  probability words

Know sum of probabilities of m.e. outcomes is 1 or 100%

W  P  P  P  W  probability line

Identify all mutually exclusive outcomes of an experiment

 

W  Probability cards

Estimate probabilities from experimental data

Understand relative frequency as an estimate of probability

 

Compare experimental and theoretical probabilities

 

Appreciate difference between explanation and evidence

 

 

SMARTIES - data handling project

 

GOALS - data handling project

 

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