The aim of this study was to investigate the effect of DokunSay number tablets on the development of arithmetic skills of pre-school children aged 48-60 months. The participants of the study consisted of 19 preschool children attending a private kindergarten. The study utilized a quasi-experimental design without a control group with pre-test post-test. The data were collected by a test consisting of 21 questions. In the analysis of the data, t-test results and percentage calculations were used. There was a significant difference [t (19) = -6.994, p
Key words: DokunSay, Perceptual and conceptual subitizing, Teaching arithmetic, Preschool education
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