1. Baroody, A. J. (1987). Children’s mathematical thinking. New York, NY: Teachers College Press.
2. Baroody, A. J. (2016). Curricular approaches to connecting subtraction to addition and fostering fluency with basic differences in grade 1. PNA, 10(3), 161–190.
3. Björklund, C., & Alkhede, M. (2017). Sharpening the focus on numbers and counting: Preschool educators differentiating aspects of mathematical knowledge for teaching. Mathematics Teacher Education and Development, 19(3), 117–134.
4. Björklund, C., Alkhede, M., Kullberg, A., Reis, M., Marton, F., Ekdahl, A.-L., & Runesson Kempe, U. (2018). Teaching finger patterns for arithmetic development to preschoolers. Paper presented at the MADIF 11 The eleventh research seminar of the Swedish Society for Research in Mathematics Education, Karlstad.
5. Björklund, C., Kullberg, A., & Runesson Kempe, U. (2019). Structuring versus counting: Critical ways of using fingers in subtraction. ZDM Mathematics Education, 51(1), 13–24.