This unit introduces the teaching and learning of mathematics from Kindergarten to Year 12 to pre-service teachers undertaking both double and single secondary mathematics method. The continuum of learning for K to 10 mathematics is a key focus. To reflect the collaborative nature of working in a team of teachers in schools, issues related to teaching secondary mathematics will be addressed through the investigation of relevant scenarios through small learning team exercises related to high school settings. In these teams, pre-service teachers will collaboratively investigate the issues raised in the scenarios and plan sequential learning experiences appropriate for high school students.