Here's an interesting story of a girl in Michigan with Grapheme-Color Synesthesia. In other words, she visualizes each digit, zero through nine, as a different color.

For her, and others with the same condition, it adds a new splash to math work.
The formulas and ideas you learn in math are very useful, but even if you never use them again, learning math develops critical thinking and problem-solving skills—it makes you smarter.
Your body gets stronger when you exercise it by running, lifting weights, and jumping rope. Your mind gets stronger when you do math—solving problems, understanding new ideas, and proving theorems. Most athletes don’t lift weights in competition, but having stronger muscles helps you in all your sports. Most people don’t do advanced math for their work, but being smarter helps you in everything you do.
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"It should be evident that each step in my career has rested on a firm foundation in mathematics. For me, the study of mathematics was the key that opened the doors to the universe."
NASA Astronaut
Figures represent salary potential.
Here's an interesting story of a girl in Michigan with Grapheme-Color Synesthesia. In other words, she visualizes each digit, zero through nine, as a different color.

For her, and others with the same condition, it adds a new splash to math work.