Reference
- Kamii, C. 1996 Theory and the teaching of arithmetic. Prospects. 26 (1): 99–111.
- Kamii, C. 2014. The importance of thinking: Direct versus indirect teaching of number concepts for ages 4 to 6. Young children 69 (5): 72–77. https://sites.google.com/site/constancekamii/articles-available-for-printing.
- Kato, Y., M. Honda and C. Kamii. 2006. Kindergartners play lining up the fives: A card game to encourage logico-mathematical thinking. Beyond the Journal • Young Children. https://sites.google.com/site/constancekamii/articles-available-for-printing.
- Witzel, S.B., C.J. Ferguson and D.V. Mink. 2012. Number sense: strategies for helping preschool through grade 3 children develop math skills. Young Children 67 (3): 89–94.