The gap between science as subject and science as classroom

Science is inquiry by definition.
Most science classrooms aren't.

Science is a subject that should, in theory, be a natural fit for facilitation. Scientific thinking is inquiry-based by definition — it involves forming hypotheses, collecting evidence, evaluating alternative explanations, and revising conclusions in light of data. Science classrooms, however, are often among the least inquiry-based in secondary schools.

The reason is structural: the practical investigation has become a procedure-following activity rather than a genuine inquiry, and the theory lesson has become a content delivery session rather than an evidence-examination discussion. The result is a common student experience of science as a body of facts to be remembered, occasionally verified through structured experiments that always produce the expected result. This is the opposite of scientific thinking.

Where discussion fits in science

Before the experiment. During it.
Definitely after it.

1
Before — predictive discussion: forming and sharing hypotheses
"Before we run the experiment, what do you predict will happen and why?"

This step is almost universally skipped in school science. It is also one of the most powerful learning mechanisms available: a student who has committed to a prediction and been proved wrong by their own experimental data has experienced genuine cognitive conflict. Their prior model has been directly falsified. This produces accommodation — genuine understanding — at a depth that simply watching the expected result cannot.

The key design element
Students must record their prediction with a reason before the experiment. A prediction without a reason is not a prediction — it is a guess that produces no cognitive investment in the outcome. The reason commits the student to a mental model that the experiment will test.
2
During — interpretation discussion: what is the data actually showing?
"What pattern are you seeing? Is this what you predicted?"

During the data collection phase, introduce interpretation discussions: 'What pattern are you seeing? Is this what you predicted? If not, what might explain the difference?' This moves the experiment from procedure-following to genuine inquiry — students are interpreting their own data in real time, not waiting for the teacher to explain what the results mean.

Why this step is usually skipped
Pausing data collection for discussion feels like it slows the experiment. In fact, it converts data collection from a mechanical recording exercise into an active reasoning process. Students who interpret while collecting understand the results more deeply than those who collect first and are told the interpretation later.
3
After — evidence-to-conclusion discussion: what can we legitimately conclude?
"What does this data support? What doesn't it tell us?"

The post-experiment discussion is usually replaced by students filling in a results table and copying a conclusion from the board. This wastes the most scientifically valuable moment: 'What does this data support? What doesn't it tell us? What would we need to test to be more confident?' These questions develop scientific epistemology — the understanding of what evidence can and cannot establish.

The questions that develop scientific thinking
'Can we be confident in this conclusion from one experiment?' / 'What are the limitations of this method?' / 'If another group got different results, what might explain that?' / 'What would have to be true for our conclusion to be wrong?'
Making theory lessons inquiry-based

Evidence first. Theory second.
The same hook principle from C7/A1.

Instead of presenting the theory and then showing supporting evidence, present the evidence and let students try to explain it before introducing the theory.

Evidence-first lesson structure — Year 10 Physics, circuit resistance
Hook (10 min): Show students three different graphs of current vs voltage for different materials. Ask: “What pattern do you see? What might explain the differences between these materials?”

Student discussion (8 min): Groups discuss and propose explanations. Common emerging ideas: something about the material, thickness, temperature.

Brief instruction (10 min): Introduce Ohm's Law — not as a fact to memorise, but as the explanation that accounts for all three graphs. “The pattern you observed is summarised by V = IR. Let's check it against each graph.”

Consolidation discussion (15 min): Socratic questioning: “Does this law hold for all materials? What would falsify it? Can you design a test that would tell us whether temperature is a factor?” — moves from Ohm's Law as fact to Ohm's Law as a testable claim.