Number Balance

Addition/Subtraction
Multiplication/Division

This pack contains two programs on cassette. Loading instructions appear on the inside front cover of this pack. All other instructions are contained in the programs and are shown on the screen. Balance is a pictorial program for practising simple mathematical operations for numbers 1 to 20. The object of the exercise is to make a balance level by inputting the correct missing number into one side of a simple equation. Incorrect answers will tilt the balance in the appropriate direction; after three incorrect attempts the program responds with the correct answer.

The Balance programs offer a high degree of user control over the exercises presented to the child. "Teachers' Notes" which appear at the beginning of each program give the user the opportunity to set the layout, difficulty, content and timing of the exercise before the child begins. Once these parameters are set, the program can be used by up to 20 children and their results will be stored for later recall.

About The Authors

Russel Wills began his career in computing in 1965 when he joined IBM as a lecturer. He then worked in Africa for 5 years as a systems analyst, returning to the UK in 1972 to take up his present post as lecturer in computer education in Dundee.

Ann Wills is Head Teacher of a primary school. Russel and Ann Wills share a common interest in the development of software for the microcomputer, and the integration of this material into the school curriculum.

Contents

INDEX
ADD-SUB
MLT-DIV

Loading

To load and run the index place the cassette (fully re-wound) in the cassette recorder, type CHAIN "INDEX" and press RETURN; the "Searching" message should appear on the screen as you do this. Now press the PLAY button on the cassette recorder and wait for the index to load. This will take approximately 30 seconds.

Select the number of the program you want to load and press RETURN. Normal cassette operating messages will be given during loading. Once the correct position on the tape is reached each program takes 2-3 minutes to load.

Note: Programs can be loaded and run in the usual way with the CHAIN command; to load and run MLT-DIV, for example, type

CHAIN"MLT-DIV"

and press RETURN.

Game Credits

Authors: Ann and Russel Wills

Acornsoft Limited, 4a Market Hill, Cambridge, CB2 3NJ, England. ESM, Duke Street, Wisbech, Cambs PE 13 2AE, England.

ES111 SBE08