Rational number is one of the most challenging areas of primary school mathematics. When taking it on, learners are asked to move beyond whole number thinking and make sense of multiplicative and ...

A rational number can be written exactly in the form \(\frac{a}{b}\), where 𝑎 and 𝑏 are integers, while an irrational number cannot.

In this chapter, we look beyond the whole numbers at other numbers that are included in school mathematics in grades pre-K to 8, particularly in the upper grades. We first look at the rational numbers ...