Vocabulary is often treated as an add-on in science teaching—something to define or display. In reality, it sits at the heart of how students learn, think and communicate in science. Without a strong grasp of scientific language, students can struggle to access content, make connections and demonstrate their understanding.
The Victorian Teaching and Learning Model (VTLM) 2.0 highlights the central role of knowledge in learning. Vocabulary underpins the Knowledge and Memory element, where students connect new ideas to existing understanding and build organised mental models. It is also critical for Retention and Recall, with repeated exposure and use strengthening long-term memory and supporting mastery of concepts .
This development begins in primary school. Through discussion, observation and hands-on learning, students are introduced to the language of science in meaningful contexts. These early experiences are essential in building confidence and familiarity.
As students move into secondary school, vocabulary becomes more complex and precise. Concepts are increasingly abstract, and students are expected to use terminology accurately in explanations and reasoning. This progression highlights the need for a deliberate, structured approach across all levels of schooling.
Within the VTLM, this aligns with Explicit Teaching, where vocabulary is clearly introduced, explained and modelled, and Supported Application, where students revisit and apply terminology in different contexts. Effective practice goes beyond memorisation—embedding vocabulary within learning, revisiting it over time, and supporting students to use it with increasing sophistication.
Strong vocabulary knowledge also influences engagement. Students who can confidently use the language of science are more likely to participate, build understanding and see themselves as capable learners – opening pathways to further study and STEM careers.
Vocabulary and Assessment: Accessing and Demonstrating Understanding
Vocabulary also plays a critical role in assessment. In science exams, students are required not only to recall knowledge, but to accurately interpret questions and construct clear, precise responses. Command terms such as describe, explain and evaluate, along with discipline-specific terminology, shape how students understand what is being asked. Without a secure grasp of this language, students may misinterpret questions or struggle to communicate their thinking effectively—even when they understand the underlying concept.
This connects directly to the VTLM focus on Retention and Recall and Mastery and Application, where students must retrieve and apply knowledge in structured ways . Strong vocabulary knowledge supports both: enabling students to decode questions, organise their thinking, and express their understanding using appropriate scientific language.
Strengthening vocabulary instruction is an impactful way to support science learning.
If you’re interested in exploring practical, evidence-informed strategies to embed vocabulary effectively in your classroom, join us for Impactful Science Teaching – Workshop Series, where we’ll take a deeper dive into approaches you can apply immediately in your teaching practice.