The Cuisenaire Gattegno Method Of Teaching Mathematics
small numbers are being studied. Furthermore, methods found and used by the child capture his interest and give him confidence—he knows that even when working mentally, the rods are always available for checking his own answers.
Horizontal And Vertical Notation As a result of this lack of formality, written work has been set out horizontally rather than vertically. This, as has been pointed out, is the language form of the sum, where the numbers are considered as wholes and not dissected into their hundreds, tens and units. As the realization of number value has been a feature of this teaching technique and as the numbers concerned have been comparatively small, the horizontal notation has been the more suitable up till now. It has also been more helpful than the vertical one in consolidating the notion of equivalence. However, in accordance with the principle of presenting situations in many different ways, vertical notation may be introduced as an alternative method of writing sums. It is recommended, however, that this be done only after the principles involved in a given situation are thoroughly understood by the children. It will be remembered that at all times throughout the course written expression of mathematical notions was introduced only after understanding had been ensured by oral means. Gattegno insists that ‘the child must know what he is doing before he is
The Cuisenaire Gattegno method of teaching Mathematics