N There are no qualifying studies on the effectiveness of Abacus in primary schools.
Abacus is not designed for use with secondary students.
The fact that there are no qualifying studies about Abacus does not mean that the programme is not effective. It simply tells us that there is no evidence as to whether Abacus is effective or ineffective.
More on maths programmes
More on Abacus
For more details of the Abacus programme, visit www.heinemann.co.uk