Both books have also been released on audiocassette.
Books and materials received audiocassette.
Use of the audiocassettes is essential.
Children listened to audiocassette-recorded sounds and were asked to either combine or segment sounds.
Following each is a set of exercises and activities, which work with an accompanying audiocassette.
Each level has a student's book, teacher's book, and audiocassette.
The same scripts, picture books, and songs on audiocassette were used.
They were recorded on audiocassette and scored online.
