• Name:  Rebecca MacInnes Grade Level:  9 - 12 Room No: Gym for PE and E202 for Sports Medicine & Lifeguarding. Phone No: (215) 441-6181  x 12604 Email: macire@centennialsd.org To view Gradebooks click on the Skyward icon in the banner above Welcome to Mrs. MacInnes' web page! Welcome to the 2018/2019 school year!  I'm excited about teaching your son or daughter this upcoming year. I teach Health and PE for grades 9 -12, Sports Medicine and Lifeguarding as electives at William Tennent.  I look forward to a great year with all of my students. I encourage parents or students to contact me with any questions, comments or concerns.  My phone number is 215-441-6181 ext. 12604.