- Teachers work 55.7 hours/week total1, and spend 9.4 hours/week marking2. That’s 17%.
- The average teacher salary is £28,9513, but we have to add the employer’s NI contribution of 13.8% to give an employer cost of £32,946, ignoring all overheads.
- 17% of £32,946 of is £5,601. That’s what we spend on marking per teacher, per year.
- The average secondary school employs 654 qualified teachers, so the total cost per school is £364,053.
Chalkface Blog
The best teaching materials in the most practical format.
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I have yet to meet a single head or senior teacher who can answer this off the top of their heads, but it is easy to work out using government-published figures.I’ll repeat that. The average state secondary school spends well over a third of a (more…)
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Quick Assignments are a way to quickly assign, collect and grade written work. Unlike quizzes they won’t do the marking for you, but they will save you a lot of time and temper.Now we have made them even quicker, by copying the Assign Again feature from quiz assignments.Once you have created a Quick Assignment for one student sets, it is the work of seconds to assign it to more sets. In the assignments list:Actions ->Assign again
Select the new student set and (more…) -
When students misspell a common word, what is driving the error? I analysed 35,000 Peer Feedback entries in which the student had intended to write “wrong” and found 1614 instances of misspellings – about 5% of the total.

Of the misspellings,
- 62% entered “rong”, a phonetic error
- 27% entered “worng”, a typographical error.
My own spelling changed from atrocious to moderately good overnight, when a psychologist colleague taught me the visual spelling strategy. It looks like a good proportion of these students could still benefit from the same thing. The rest just need to learn touch typing.
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If you want to deliver a traditional summative test, use Exam Mode.
Exam Mode excludes
- multiple attempts
- right or wrong notification after each question
- formative feedback after each question
but is otherwise (more…)

