During the internship I recently finished, I came to realise how important it is to have a good and structured use of the blackboard when teaching mathematics to 12-14 year pupils. Circumstances forced me to only use the blackboard, a pretty classic chalkboard. My writing on that blackboard can definitely use some improvement. I was hoping for some tips, besides exercise, on how to improve the writing itself and make the total scheme more structured, neat and orderly.
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3$\begingroup$ Recommend Steven Krantz's "How to Teach Mathematics", which spends some space on this issue. $\endgroup$– Daniel R. CollinsMay 24, 2016 at 16:20
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$\begingroup$ Vaguely related mathoverflow.net/q/5853/45 $\endgroup$– Andrew StaceyMay 26, 2016 at 5:26
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$\begingroup$ Related: matheducators.stackexchange.com/q/41/77 $\endgroup$– JRNMay 27, 2016 at 4:35
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3 Answers
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There are probably many tips on this; I remember some discussions of font choice happening here. Let me give only one: take your time.
One easily feels that writing on the board is too slow, and is thus inclined to deform letter, take shortcuts in sentences, and use abbreviations. Most of the time, these are mistakes because it makes the meaning intrinsically more obscure, and it also gives less time for students to understand what is on the board. In most circumstances, teachers should find the writing on board painfuly slow for it to be acceptable for student. Writing full sentences (except at your envelop-back/draft zone as mentioned in Jessica B's answer), taking time to form and space letters will make it easier to have a clean board.
answered May 24, 2016 at 14:18
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Blackboard writing 101: always break the chalk (to reduce the likelihood of squeaking)
Other points will depend on how much space you have available. Working consistently from left to right helps, although an alternative is working right to left (assuming you are right-handed and have a fair amount of space) to keep your body away from what you've most recently written.
On a whiteboard I use different colours for different blocks of ideas, to provide more of a visual divide. That might not work so well on a blackboard, depending on the chalk available.
Often at undergraduate level there are places where you need to do rough working separately from your main solution. I like to do that on the other side of the board, in a different colour. One of my lecturers would draw the back of an envelope on the board. I guess this is less applicable for 12-14 year olds.
A personal pet-peeve is the smudge marks on a blackboard once it's been erased. I try to be sure to wipe the board using horizontal strokes, so at least the backdrop to the next set of writing is not too chaotic.
You probably need to write bigger than you think you do (although I had one lecturer who wrote way too large). I also took to a completely different style of handwriting to what I use for myself - I think of it as 'baby writing'. Don't be afraid to change your letters if you need to. I've recently started crossing my zs on the board, even though I've never liked that, after confusing one of my own for a 2.
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$\begingroup$ The problem is that my writing often changes direction and i start tilting downwards nearing the end of my scentences. Also i keep misjudging the size of my board and keep thinking i can write more in the space than what proves to be realistic. That aside from changing letters (from b to B to a looped b , ...) and general punctuation seem to be the hardest to focus on $\endgroup$ May 24, 2016 at 11:36
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2$\begingroup$ another thing that i found that really helped me when I was first learning how to write on a chalkboard was to use a plastic chalk holder, keeps the chalk from breaking and is more comfortable for your hand IMHO $\endgroup$– celerikoMay 24, 2016 at 12:21
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6$\begingroup$ Instead of breaking the chalk, how about just finding a small piece? I myself strongly prefer larger pieces of chalk, and am able to avoid "squeaking". The people who compulsively break whole pieces into smaller, and then use the smaller bits only briefly, are being wasteful. (The way to avoid "squeaking" is to keep the chalk at a low angle to the board, as opposed to perpendicular. It's not a secret.) $\endgroup$ May 24, 2016 at 22:10
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$\begingroup$ In fact breaking the chalk is not really necessary to prevent squeaking, a proper, not too tight, grip at the right position will also do. $\endgroup$– DirkMay 24, 2016 at 22:55
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$\begingroup$ Personally, I had to get an anodized aluminum chalk-holder because I'd always get over-excited and shatter the chalk in my fist at some point. $\endgroup$ May 25, 2016 at 3:25
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Let students see what you're writing as you're writing. Otherwise, they're bored while you write and must hurry to read when you finish. Instead of facing the board, stand with your side to the board and your chalk hand in plain view, sort of like a "Wheel of Fortune" host. This posture also makes it much easier to talk to your students and not to the chalkboard, which is good policy as well.
