Probabilistic Thinking pp 417-439 | Cite as

# Developing a Modelling Approach to Probability Using Computer-Based Simulations

## Abstract

The introduction of digital technology into secondary schools is ideally suited for supporting students as they manipulate and portray data in a range of different representations to draw inferences from it without relying on a classical understanding of probability theory. As a result, probability is overlooked from school curricula and is gradually becoming almost a non-existent topic. The aim of recent curricula (e.g. ACARA 2010) to support the parallel development of statistics and probability and then progressively build the links between them seems utopic since statistics prevails over probability in mathematics curricula. In this chapter, it is argued that it is worthwhile to consider an alternative approach for teaching probability—presenting probability as a modelling tool, which reflects the mindset of an expert when using probability to model random behaviour in real-world contexts.

- (1)
How students articulated fundamental probabilistic concepts associated with the construction of univariate probability models when using probability to model random behaviour.

- (2)
Students’ discussion as they engaged in exploring recently developed computer-based simulations which treat probability as a modelling tool.

In this chapter, references will be limited to students in Grades 6 to 9. Prodromou’s research studies address four research questions as follows: (1) How do middle school students use probability to model random behaviour in real-world contexts? (2) What connections do they build among fundamental probabilistic concepts when treating probability as a modelling tool? (3) How do they synthesize the modelling approach to probability with the use of distributions while concurrently making inferences about data? (4) What activities can be designed to support the proposed alternative approach for teaching probability?

The results of this study provide answers to the aforementioned research questions and suggest that the way students express the relationship between signal and noise is of importance while building models from the observation of a real situation. This relationship seems to have a particular importance in students’ abilities to build comprehensive models that link observed data with modelling distributions.

## Keywords

Modelling Probability Middle school Computer-based simulations Random behaviour Signal Noise Data## References

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