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 ...

The method to divide fractions is to keep the first fraction the same, turn the divide sign into a multiply and turn the second fraction upside down. This is known as multiplying by the reciprocal.

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 ...