Symbols save time and space when writing. Here are the most common mathematical symbols:
"My favorite lessons involve student collaboration/group work. Here is where I see the best opportunities to create real-world math experiences. In the real world, math problems do not come with all the numbers needed to solve the problem. One must search resources for the numbers."
http://www.dailyherald.com/article/20161114/news/161119779/
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