Mission Possible: Exploring the Mysterious 1/7
Explores several patterns that are associated with the fraction 1/7. Information on the repeating block of digits for the fraction; Ways to find the decimal representation of 1/7.
Shaw, Kenneth, and Leslie Aspinwall. "Mathematics Detective: Mission Possible: Exploring the Mysterious One Seventh." Mathematics Teaching in the Middle School 11, no. 4 (2005): 178-180.
Mathematics Teaching in the Middle School