1. Learner control of context and instructional support in learning elementary school mathematics

   • Gary R. Morrison
   • Steven M. Ross
   • Walter Baldwin

   Research Pages: 5 - 13

2. Effects on children's achievement and curiosity of variations in learner control over an interactive video lesson

   • Marilyn P. Arnone
   • Barbara L. Grabowski

   Research Pages: 15 - 27

3. An interactive systems model derived from experts' perceptions of human-computer issues

   • Warren C. Weber

   Research Pages: 29 - 39

4. Reference citations in selected instructional design and technology journals, 1985–1990

   • Gary J. Anglin
   • Robert L. Towers

   Research Pages: 40 - 43

5. Introduction to special issue

   • Michael J. Hannafin
   • Simon Hooper

   Development Pages: 47 - 47

6. Emerging technologies, ISD, and learning environments: Critical perspectives

   • Michael J. Hannafin

   Development Pages: 49 - 63

7. The Jasper experiment: An exploration of issues in learning and instructional design

   • Cognition and Technology Group at Vanderbilt

   Development Pages: 65 - 80

8. Constraints to curriculum reform: Teachers and the myths of schooling

   • Kenneth Tobin
   • George Dawson

   Development Pages: 81 - 92

9. Computer-based microworlds: A bridge between constructivism and direct instruction

   • Lloyd P. Rieber

   Development Pages: 93 - 106

10. Book reviews

    • James D. Klein
    • Terry Curtis

    BookReview Pages: 107 - 110

11. Information virus: Contaminated subject matter in instructional materials

    • David Giltrow
    • Paulina Pannen

    International Review Pages: 111 - 114

12. The “Countrywide Classroom”: Reaching India's rural residents

    • Connie Howard

    ReviewPaper Pages: 115 - 117

13. Research abstracts

    Abstract Pages: 119 - 126