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Class size reduction: who wants to be a teacher?

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Everyone loves a small class. In Australia, the student-teacher ratios fell from 25-to-1 in 1964 to 14-to-1 in 2015. Most of the fall occurred in the 1960s and 1970s as and school reformers pushed for smaller classes.

Did the fall in the student-teacher ratios in Australia schools lead to the expected improvement in students’ performance?

A costly mistake

A 2009 research paper by economists Andrew Leigh and Chris Ryan found that even as class sizes fell, the hoped-for improvement in student performance did not happen. Their paper, Long-Run Trends in School Productivity: Evidence from Australia, found that academic results went down.

In particular, students’ performance has shown a steady decline in math and science. In 2017, Australian science students were seven months behind where they were in 2006, and Australian maths students a year behind where they were in 2003.

A 2016 report in the Financial Review described the drive to reduce class size in Australia as a ‘costly mistake’. It drove up the cost of schooling by over 25 per cent to $50 billion a year and failed to improve education.

Does class size matter?

In Singapore, WP Jamus Lim has also called for smaller classes. This is despite the fact that class size has been gradually reduced over the years. It used to be 40+ students per class. Now, it’s much smaller than that.

Does class size matter? Of course it does. The question is: how small is small enough? There is no consensus anywhere on the ideal ratio or class size.

Currently here in Singapore, the average primary school class has about 30+ students.

Let’s say we halve the size of the class. This means the number of will have to be doubled. Similarly the number of classrooms will have to be doubled.

Currently, there are more than 15000 primary school according to Education Statistics Digest from MOE.

Hire another 15000 to halve primary school classes?

To double the number of primary school means hiring another 15,000+ teachers.

It goes without saying that there will be trade-off in teacher quality when numbers are ramped up significantly.

And where will you find another 15,000+ new to hire? There are finite manpower resources and competing demands in other sectors as birth rates fall and smaller cohorts enter the workforce.

Will still be paid the same salary?

With double the number of teachers, cost of salaries will double also. There will be less money for other developments – professional development, special programmes, student development etc.

What about the physical space?

Doubling the number of classrooms means building more primary schools. There are currently 177 primary schools. How many more primary schools must be built? Another 177 primary schools? Or will every existing classroom be divided into 2 and children put into smaller rooms with less space to move around?

The education system is not better than the quality of its

Everyone loves a small class. BUT the quality of a teacher matters more than the size of the class. Don’t believe? Just ask any student or parent which they prefer, a small class taught by a less-qualified teacher or a bigger class taught by a competent teacher.

It is better to have a quality teacher teaching a bigger class than 2 lousy teaching 2 small classes.

An education system is only as good as the quality of its teachers.

It is easy to make a popular proposal. More than making a proposal, a politician must imagine himself implementing his own proposal so that he will understand the trade-offs and the cost. For example, Jamus has also suggested that funding for popular primary schools be reduced. Think about the implications for the students in these schools when class size is reduced together with reduced funding.

The OECD which has studied many education systems concluded that reducing class size is not, on its own, a sufficient guarantee to improve the quality of education systems. Increasing the quality of teaching is often a more efficient policy lever to improve student performance than reducing class size. Indeed, countries with high-performing education system prioritise teacher quality and professional development over class size. The countries referred to by Jamus (Austria, Denmark, Luxembourg) are not among the high-performing countries despite having small classes.

An optimum class size

Class size matters and this is why our class size has been reduced over the years, from as big as 45 or 46 per class to 30+ today.

Class sizes also vary based on subject and students’ learning needs.

For example, classes for weaker students in the Learning Support Programme and Dyslexia Remediation Programme are conducted in classes of 8 to 10, and four to six respectively.

Primary 1 and 2 pupils have smaller classes so that they can better ease into formal schooling from pre-school education. In the secondary schools, with subject banding, students can belong to more than one class depending on the subjects they take, with some classes smaller than others.

It is more meaningful to talk about an optimum class size that benefits students according to their needs, rather than a big or small class size.

Political barriers to increasing class size

In Australia, educational experts have found it difficult to increase class size for political reasons.

Education expert Ben Jensen said there was a good case for a small increase in class sizes to free-up time for to allow them to teach better and improve their skills. Such a move, however, would face political barriers because it would be strongly opposed by parents, who wrongly believe that smaller class sizes are important for a quality education.

“I don’t think any government is going to get elected with a policy to increase class sizes,” said Dr Jensen, a former OECD economist, and previously the Grattan Institute’s school education specialist.

“If you look at all the high-fee independent schools virtually all of them would advertise the fact they have lower class sizes. It appeals to parents, we know that,” he was quoted by the Financial Review as saying.

This is what happens when politics rule.

Meanwhile in Singapore…

Class size in Singapore has not hindered students’ ability to collaborate on problem-solving. In the first ever PISA test on collaborative problem-solving skill, Singapore emerged as the top performing country.

Its score of 561 puts it significantly above all other education systems, says the OECD report on Singapore. Singapore is followed by Japan with 552 points, Hong Kong with 541 points and South Korea with 538 points. Students from 177 schools in Singapore completed the assessment of collaborative problem solving.

Here’s what the OECD has to say about what successful countries have in common.

They share the policies of high and universal expectations for all students; a strong focus on great teaching; resources targeted at struggling students and schools; and a commitment to coherent, long-term strategies.

Read also  Jamus Lim suggests reduced funding for primary schools that are popular

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