Considering that the average spending in the UK is around £3,700 per primary student per year (about $5,800 US). Perhaps people should be looking more into where that money is going. There is no way that is not enough to pay for all the necessary teachers, buildings, utilities, new books, computers and other gadgets needed for education. With average class sizes of 26 pupils that is £96,200 (about $150,850 US).
This is even worse in the US where they get $7,750 on average per student with an average of 24 students per class or $186,000 per class per year. Yet they keep saying they need more money for education.
While Finland takes the top ranks in education in the world. While they get $5,650 per student and an average class size of 20 so and $113,000 per class.
There is just tons of money being wasted somewhere. It certainly is not the teachers salary, books, classroom materials, utilities, &c. Assuming you bought new books (and they costs as much as college textbooks), new computers for every student every year and all other devices each year all expenses shouldn't go to much more than $100,000 per classroom. In reality this number is much less as they use computers for several years, other equipment for years if not decades and books for five to ten years.
The Finnish number of $113,000 sounds just about perfect when you factor in a minimal office, janitorial and maintenance staff. Even they must have some inefficient spending though since there teachers make less money per year and I doubt they replace all education material and equipment every year.