Finding the area and arc length of sectors following on Perimeter and Area where students first learn about circles. Throughout this unit on sectors students develop their algebra skills by deriving and changing the subject of the arc length and area formulae. This unit takes place in Term 3 of Year 11 for foundation students.
How to teach working out the reciprocal of integers, fractions, decimals and mixed numbers.
How to teach proving geometrical properties using algebra.
How to teach solving 3D problems using trigonometry.