Pupil Teacher Ratios (PTRs): An update

The publication last week by the DfE of the school census discussed in the previous post on this blog means that a time series analysis of changes in PTRs can be undertaken using the DfE’s new ‘construct your own table’ tool.

PTRs are useful as a guide because they can provide evidence of changes in the trends of school funding, especially when most of that funding comes from pupil numbers. The measure is not perfect. Older teachers cost more than younger one, so schools where staff stay put after being employed at NQTs cost schools more each year until they reach the top of their scale. This extra cost isn’t recognised in the funding formula.

When schools are gaining pupils, you might expect PTRs to improve, and when rolls start falling then PTRs might worsen, although there is likely to be a time lag to that effect as schools come to terms with lower numbers of pupils going forward. After all, no school likes to make staff redundant.

Incidentally, the fall in the birth rate and the exodus of overseas citizens will mean some tough decisions on ITT numbers may need to be made, possibly as early as this autumn for 2022 entry.

An analysis of changes in PTRs between 2016/17 and 2020/21 for the secondary sector shows only seven authorities, including the Isles of Scilly, where PTRs improved. In 13 local authorities the secondary PTR for schools across the Authority worsened by at least two pupils per teacher, with Slough unitary authority and the City of Nottingham having the largest changes in PTRS for the worse in the secondary sector. Most local authorities witnessed overall secondary PTRS deteriorate by between one and two teachers per pupil during this five year period. Historically that is quite a significant level of change for so many authorities. Now, some of that deterioration might have been due to keeping option groups going in the sixth form as pupil numbers in that age-group continued to fall but some could well be down to funding pressures across the sector.

In the primary sector, the position is more complex. Schools tend to be smaller and areas with new housing may be gaining pupils, even as other areas are being affected by the fall in the birth rate. Changes in PTRS have generally been in the range of plus one to minus one across most authorities, although during the five year period there are some outliers, notably, the City of Derby, where it is possible that the 2016/17 data point in the DfE database is a mistake. Such mistakes do happen from time to time.

It may also be a coincidence that both North Yorkshire and York unitary authority have recorded significant improvements during the five year period. A number of London boroughs south of the Thames also appear to have done relatively well during this five year period.

The longer that the National Funding Formula is in existence, it will be interesting to see what, if any effect it has on PTRs across the different authorities. Of course, if boundaries continue to be redrawn it will be impossible to tell. Happily, Outer London boroughs have had the same boundaries for more than half a century now.

Leave a comment