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# Statistical investigations

Although the focus of student learning in investigations may be on a particular statistical concept, they also provide the opportunity for students to gain skills in the four proficiencies of the *Australian Curriculum*:

- Fluency
- Understanding
- Problem solving
- Reasoning.

Assessment of the proficiencies can be included as criteria when evaluating the student work generated from a statistical investigation.

The *Statistical Investigations: Rubric* has four criteria that relate to the proficiencies:

- Knowledge
- Method
- Purposes
- Forms.

This rubric can be adapted to focus on the particular statistical learning outcomes targeted in an investigation.

**Fluency** is demonstrated through choosing and applying statistical tools, such as graphical representations to organise data (**Knowledge**).

**Understanding** is demonstrated through the way in which statistical concepts are expressed in the analysis of the data and the conclusions drawn (**Purposes**).

**Problem Solving** is demonstrated through organising an investigation, choosing appropriate data collection methods and evaluating proposed solutions (**Method**).

**Reasoning** is demonstrated through making comparisons, explaining decisions and justifying conclusions (**Knowledge**, **Forms**).

## Assessing statistical investigations

Advice on assessment is included in this year 8 unit of work about statistical investigations. The assessment modes reflect the digital curriculum resources and other ICT materials included in this series of lessons.