Time Lines
A time line is a great way to visually show what has happened over a period of time. It lets you see how the events relate to each other, the sequencing of them.
Obviously this is a very useful technique for subjects like History where dates are essential, but it can also be useful for visualising things like tenses and verb forms in French, storylines in English Literature and maybe even when parts of a program or algorithm run, or the stages in converting to Hexadecimal in Computer Science - although we also have flow charts for that.
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