We need to teach sets in mathematics teaching, so how to insert set symbols in the courseware?
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1. Click Insert - WordArt - select the red wordart type - enter the content of the collection: a belongs to collection A.
2. Enter a and then press the space, enter A, place the mouse between a and A—and then click Insert—Symbol.
3. Font Selection (Asian Language Text) - Subset Selection: Mathematical Operators.
4. Click to select the mathematical set symbol ∈ - click Insert - close the dialog box.
5. Click Start - set the font to 54, bold.
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