Coppell High School AB calculus and pre-calculus teacher Mary Jo Wilt draws a position-time graph during her sixth period class on Thursday. Wilt has been a math teacher at CHS for 21 years. Photo by Shreya Ravi.

Coppell High School calculus teacher Mary Jo Wilt has taught at CHS for 20 years, making this her 21st year. After starting as a long-term substitute teacher with no teaching experience prior to CHS, Wilt is currently teaching AB calculus and pre-calculus in her same classroom for the past 21 years. To view the interactive story, click on the icons above.

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