For a presentation that uses one of the most popular cool-colors, use the Math Project free Powerpoint Template. This cleverly designed presentation template is visually appealing with its subtle background of classroom equipment, that lets the words on the screen stand out.
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Notepad Free Powerpoint Template
If you want a clean and simple design that is modern and mimics graphing paper, then the Notepad Powerpoint Template is perfect for you to use as a demonstration.