Further reading

Arcavi, Abraham, Drijvers, Paul and Stacey, Kaye (2017) The learning and teaching of algebra: ideas, insights. and activities, Abingdon, Oxon; New York, NY, Routledge/Taylor & Francis Group.

Kieran, Carolyn, Pang, JeongSuk, Schifter, Deborah and Ng, Swee Fong (2016) Early Algebra, ICME-13 Topical Surveys, Cham, Springer International Publishing, [online] Available from: http://link.springer.com/ 10.1007/ 978-3-319-32258-2 [Tip: hold Ctrl and click a link to open it in a new tab. (Hide tip)] (Accessed 30 March 2018).