Irrational numbers are numbers that cannot be expressed as the ratio of two whole numbers. This is opposed to rational numbers, like 2, 7, one-fifth and -13/9, which can be, and are, expressed as the ...

This is a preview. Log in through your library . Abstract We present data from a two-year teaching experiment involving 8- and 9-year-old children. The purpose of the teaching experiment was to ...

The study sought to trace the emergence and differentiation of partitioning as a process that leads young children to construct ideas of rational numbers. The method involved clinical sessions with ...