In algebra, letters are used when numbers are not known. Algebraic terms, such as \(2s\) or \(8y\), leave the multiplication signs out. So rather than \(2 \times s\), write \(2s\), and rather than \(8 ...
Educational Studies in Mathematics presents new ideas and developments of major importance to those working in the field of mathematical education. It seeks to reflect both the variety of research ...
https://doi.org/10.4169/college.math.j.44.1.016 https://www.jstor.org/stable/10.4169/college.math.j.44.1.016 Building on two centuries' experience, Taylor & Francis ...
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