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Image of Joan Petti  Tellish

Joan Petti Tellish

Joan Tellish is a mathematics support teacher in Howard County, Maryland.  Joan has over 20 years of teaching experience and is certified in mathematics instructional leadership as well as administration and supervision. She is an adjunct instructor at Towson University, McDaniel College, and has presented at several local, regional, and national conferences. 

Connect with Joan in the Math in Practice Facebook group.

Related PD Offerings

Email if you would like to contact Joan Petti Tellish directly about professional development support.