REFERENCES
- Frank , A.R. 1989 . Counting skills: a foundation for early mathematics . Arithmetic Teacher , 1989
- Piaget , J. 1969 . The child's conception of number , London : Routledge & Kegan Paul .
- Tissink , J. , Hamers , J.H.M. and Van Luit , J.E.H. 1993 . “ Learning potential tests with domain-general and domain-specific tasks ” . In Learning potential assessment: theoretical, methodological and practical issues , Edited by: Hamers , J.H.M. , Sijtsma , K. and Ruijssenaars , A.J.J.M. Amsterdam : Swets & Zeitlinger . in
- Van De Rijt , B.A.M. and Van Luit , J.E.H. 1994 . “ The results of different treatments on children's weak performance in preparatory and initial arithmetic ” . In Research in learning and instruction of mathematics in kindergarten and primary school , Edited by: Van Luit , J.E.H. Doetinchem : Graviant . in
- Van Luit , J.E.H. 1987 . Teaching impulsive children with arithmetic deficits in special education: a self-instructional program . European Journal of Special Needs Education , 1987
- Van Luit , J.E.H. , Van De Rijt , B.A.M. and Pennings , A.H. 1994 . Utrechtse Getalbegrip Toets , Doetinchem : Graviant .