Lesson 1. Fractions as Parts
The idea of a fraction is developed from everyday language into its mathematical idea as a part of a unit of measure.
Lesson 2. Fractions as Numbers
The idea of a fraction as a part of a unit of measure is developed into the idea of fractions as numbers – fractional numbers – and how they are written in numerals.
Lesson 3. Vocabulary of Fractional Numbers
Essential words which name the numerals making up a fractional number and their origin. The ideas of unit, non-unit, proper, improper and equivalent fractions.