This study investigates how mathematical activities based on mathematical communication and representation can improve children`s mathematical concepts. Subjects were forty-six 4-year-old children at ``S`` kindergarten and ``H`` kindergarten in Seoul,...
This study investigates how mathematical activities based on mathematical communication and representation can improve children`s mathematical concepts. Subjects were forty-six 4-year-old children at ``S`` kindergarten and ``H`` kindergarten in Seoul, divided into an experimental group of 25 children at ``S`` kindergarten and a comparative group of 21 children at ``H`` kindergarten. In order to test the premise, I designed a mathematical program consisting of three steps in which, for 16 weeks, the experimental group engaged in 1) exploring mathematical concepts, 2) representing those concepts, and 3) communicating with others about them. Post-tests given to both groups, show a significant positive statistical difference between the experimental group and the comparative group in the scores of children`s mathematical concepts: numbers, geometry, measurement, pattern, and probability and statistics. These results demonstrate that mathematical activities based on mathematical communication and representation improves and deepens children`s mathematical concepts.