MyLabSchool -- Where the classroom comes to life! Watch real classrooms in action in the MLS VideoLab. Study for the PRAXIS exam using our video cases and practice test! Prepare for your first (or next!) job interview with the MLS Career Center. Learn how to write effective research papers with Research Navigator. Contact your local Allyn & Bacon sales representative for more information about this great tool or for the Valuepack ISBN.Chapin, June R. is the author of 'Elementary Social Studies A Practical Guide', published 2001 under ISBN 9780321086679 and ISBN 0321086678.