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

I currently use GOOGLE CLASSROOM. Email me if you would like to be linked to my Google Classroom!

Room #: H111

Email: dcallahan@sau16.org

Phone: (603)395-2541

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.

A2 Calendar