Welcome to the homepage for Mr. Callahan's math classes. Here you will find basic contact information and links to course websites.

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Room #: H111
Email: dcallahan@sau16.org
Phone: (603)395-2579

Extra Help(subject to change):
Tuesdays(2nd and last tuesday of the month): 2:30-3:00
Thursdays: 2:30-3:00
6th Period by appointment
Other times can be arranged by request.