The study focuses on the cognitive level of Mathematical Working Space (MWS) and the component of the epistemological level related to semiotic representations in two mathematical domains of rational ...

Educational Studies in Mathematics, Vol. 60, No. 1 (2005), pp. 37-69 (33 pages) This study examined changes in 26 fourth-grade students' early conceptions of rational number representations as a ...

Although few of us think of numbers in spatial terms 5, psychophysical evidence suggests that the mental representation of numbers has a spatial nature, possibly with a left–right orientation 6. First ...

The ancient Greeks wanted to believe that the universe could be described in its entirety using only whole numbers and the ratios between them — fractions, or what we now call rational numbers. But ...

Real numbers are, in fact, pretty much any number that you can think of. This can include whole numbers or integers, fractions, rational numbers and irrational numbers. Real numbers can be positive or ...

Fundamental Theorem of Arithmetic - statements after reviewing work done earlier and after illustrating and motivating through examples. Decimal representation of ...