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Lamanna, Luca; Gea, María Magdalena; Batanero, Carmen – Canadian Journal of Science, Mathematics and Technology Education, 2022
This work is part of an investigation conducted in Italy, which aims to explore the effects of instruction on secondary school students' combinatorial reasoning. We gave a questionnaire adapted from Navarro-Pelayo's research to two groups of students with and without instruction on combinatorics in order to analyse the students' performances and…
Descriptors: Secondary School Students, Problem Solving, Teaching Methods, Abstract Reasoning
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Tira, Michael D.; Tagliabue, Mariaelena; Vidotto, Giulio – Psicologica: International Journal of Methodology and Experimental Psychology, 2014
In two experiments, participants judged the average numerosity between two sequentially presented dot patterns to perform an approximate arithmetic task. In Experiment 1, the response was given on a 0-20 numerical scale (categorical scaling), and in Experiment 2, the response was given by the production of a dot pattern of the desired numerosity…
Descriptors: Number Concepts, Number Systems, Numbers, Science Experiments