Performance Chew It Over February 18, 2018February 17, 2018 johndabell 0 Comments Andrew Scholey, attention, chewing gum, concentration, focus, Singapore, University of Oldenburg, Uwe Tänzer, Wrigley Science Institute Would you let your pupils chew gum in class? Share this:TwitterFacebookLinkedInPrintEmailLike this:Like Loading... Read more