NATIONAL TEACHERS’ INSTITUTE KADUNA POST GRADUATE DIPLOMA IN EDUCATION IN AFFILIATION WITH UDUS, UNIMAID, UNILORIN, UNIZIK AND UNIPORT Second Semester Examination PDE-02-21 Time: 2 Hours INSTRUCTIONS: a. This is a Two Credit Unit Course. b. Answer FOUR questions only. c. All questions carry equal marks. PDE 717 EDUCATIONAL TECHNOLOGY.   1. With sufficient points, distinguish