1.   An interactive video explains the significance of the symbols and the logic of their arrangement along vertical, horizontal and diagonal lines.

2.   Overall, teachers are using a greater mix of materials, including library books, computer software and interactive video.

3.   The methods used will involve a combination of questionnaires, interviews, and judgements about traffic situations presented via interactive video.

4.   The promise is there but, for the moment, if we want high quality interactive video to use today, we have to compromise on the digital ideal.

5.   Of course, you will have to want interactive video quite badly because videodiscs and their players are costly.

6.   Interactive video has been the second.