YEAR 9 (ma4)
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 twoway 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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