This paper is based on the first author's extensive examination of her teaching and her students' learning in a senior high school Biology classroom at a coeducational K-12 independent college in Victoria, Australia, over a five-year period. Research was guided by the following questions: (1) How can students become more aware of the specific biological terminology that they will need to use to communicate their understanding of biological concepts? (2) How can student familiarity with new biological terminology be enhanced? (3) Which teaching strategies might be most effective across the diverse range of abilities and learning styles within a senior Biology classroom? Three key data-sets ([1] Development of specific teaching procedures; [2] Student responses to using the teaching procedures; [3] Teacher journal entries and reflections) were analysed supported by Korthagen's ALACT model. Findings support the notion that genuine educational change is linked to teacher change, driven by teachers themselves, drawing new insights into students' learning.