Summary
Contents
The author focuses especially on weaknesses in numeracy often observed in adults, and in teacher-trainees in particular.
Check-up 37: Simplifying Ratios
Check-up 37: Simplifying Ratios
- A primary school has 405 pupils and 18 teachers. Fill in the missing numbers, without using a calculator: ‘In this school there are __ pupils for every 2 teachers, which gives a pupil-teacher ratio (PTR) of __:1.’
- Use a calculator to find, to one decimal place, the PTR in a school with 790 pupils and 38 teachers, writing the ratio in the form __:1.
- In a year's Ofsted inspections of primary schools, the arrangements for professional development of staff in 17% of schools were judged to be unsatisfactory. What was the ratio of schools judged unsatisfactory to those judged satisfactory or better in this respect? Use a calculator to express the ratio in the form 1:__, to ...