Which of the following best describes deductive reasoning in science education?

Concept

Deductive reasoning is the inference pattern that runs from the general to the particular. One begins with an accepted general statement — a law, definition, theory or established principle — and works out what that statement entails for a specific case that falls under it. Because the conclusion is already contained in the premise, a valid deduction is truth-preserving: if the general principle holds and the step is correctly made, the claim about the particular case must hold too.

Its counterpart, inductive reasoning, runs in the opposite direction — from a set of particular observations toward a general rule. That rule extends beyond the cases actually examined, so it is supported by evidence rather than entailed by it.

Applying it here

The stem asks which description captures the general-to-particular direction, so read each description as a direction of inference and pick the one that starts from an established general statement:

1. Identify the starting material of each description: remembered past instances, raw recorded results, a set of specific observations, or an already-accepted general principle.

2. Identify what each description ends at: an expectation about a new case, no conclusion at all, a newly framed general rule, or a claim about a specific case.

3. Match the pair that goes general first, specific second. That is “Starting with a general principle and applying it to specific cases.”

A worked classroom example: a teacher states the general principle that metals expand on heating, and the class then predicts what will happen to a particular iron rail on a hot afternoon. The principle came first; the prediction about the rail was derived from it.

Contrast with the near-misses

• “Starting with specific observations to form a general principle” — this is the reverse direction, the particular-to-general route; heating several different metal samples and only then framing the rule that metals expand.

• “Guessing the outcome based on past experience” — an informal expectation drawn from how often something happened before; no general principle is stated and no derivation is carried out.

• “Observing results without drawing any conclusions” — the data-collection stage on its own; nothing is inferred in either direction.

So the description that matches deductive reasoning is “Starting with a general principle and applying it to specific cases.”