Picture used for illustrative purposes only.

A 'perfect' teacher could produce a set of online videos for use by any and all students. The extension of this is that teachers in these subjects would no longer be needed and governments could proudly proclaim that there are now no shortages.

As a retired Specialist Maths/Physics teacher I could make myself available at a reasonable cost. My smiling face could then be seen by millions of students over the next decades and maybe finally some student might laugh at my maths jokes.

Of course, someone could listen to teachers and find out why there are leaving and what could be done to get teachers into these areas.

Dennis Fitzgerald,

Melbourne, Australia