Students learn how to rationalise the denominator of fractions, starting with simple cases like 1/√2.
Later, as learning progress students consider more complex fractions that require expansion of brackets and problem solving with areas.
Related Blog: How to Simplify Surds
Scheme of Work Link
Indices and Standard Form Higher
Differentiated Learning Objectives
- All students should be able to rationalise a denominator with an integer term as the numerator.
- Most students should be able to rationalise a denominator with a surd as the numerator.
- Some students should be able to rationalise a denominator with an integer and surd in the numerator.
