In many elementary classrooms nationwide, less and less time is spent on social studies. Lack of attention to social studies is evident in states like New York where teacher evaluations are contingent on students' performance on two subjects: English Language Arts (ELA) and mathematics. In this article, the authors describe their experience integrating social studies and mathematics in a fifth grade classroom. The authors strove to provide elementary educators with a lesson integration model that uses historical investigation as a vehicle for learning other subjects such as mathematics.