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Demetra Pitta-Pantazi; Maria Chimoni; Constantinos Christou – International Journal of Science and Mathematics Education, 2025
This article reports on an empirical study that investigates the way students' performance in solving arithmetical tasks may be related to their performance in solving algebraic tasks. The sample consisted of 203 Grade 6 students. The arithmetical tasks involved arithmetical expressions with known quantities, whereas the algebraic tasks involved…
Descriptors: Thinking Skills, Arithmetic, Mathematics Instruction, Algebra
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Tânia Fernandes; Sofia Velasco; Isabel Leite – Developmental Science, 2024
Discrimination of reversible mirrored letters (e.g., d and b) poses a challenge when learning to read as it requires overcoming "mirror invariance," an evolutionary-old perceptual tendency of processing mirror images as equivalent. The present study investigated "when," in reading development, mirror-image discrimination…
Descriptors: Grade 2, Grade 3, Grade 4, Grade 5