Enhancing Science Learning through the Inquiry Approach

Science education has long wrestled with a fundamental question: should students be told what science is, or should they experience what science does? The inquiry approach firmly answers in favour of the latter. Rooted in the philosophy of John Dewey, who argued that science should be taught as a process and way of thinking – not as a subject with facts to be memorised, the inquiry approach transforms the science classroom from a place of passive reception into one of active knowledge construction. Students ask questions, design investigations, test hypotheses, and draw conclusions – much like practising scientists do. This post breaks down what the inquiry approach is, how it works in a classroom, and why it is one of the most valuable tools a science teacher can employ.

What is the inquiry approach in science teaching? 🔗

The inquiry approach is a student-centred teaching strategy where the emphasis is on developing learners’ abilities to think critically, ask meaningful questions, and solve problems independently. Rather than presenting ready-made answers, teachers create conditions for students to explore, investigate, and construct understanding on their own terms. As the Smithsonian Science Education Center describes it, inquiry-based science gives students opportunities to investigate problems, search for possible solutions, make observations, ask questions, test ideas, and think creatively.

Inquiry-based learning (IBL) is inductive rather than deductive: instead of the teacher presenting a theory and then asking students to apply it, students begin with a question or phenomenon and build their understanding through exploration. This mirrors the actual process of scientific discovery and helps students grasp not just what we know, but how we come to know it.

Historical roots and theoretical basis 🔗

The intellectual foundation of the inquiry approach in science education can be traced to two key thinkers. John Dewey, in the early 20th century, was among the first to argue that science classrooms should develop young scientific thinkers rather than produce passive memorisers. His ideas were later expanded by Joseph Schwab, who proposed that science in the classroom should more closely reflect the work of practising scientists – a flexible, multi-directional, inquiry-driven process of thinking and learning. Schwab’s framework eventually shaped the levels of inquiry we recognise today.

Theoretically, the inquiry approach draws heavily from constructivism, which holds that learners actively build knowledge rather than passively absorb it. Research in science education consistently shows that IBL, grounded in constructivism, allows for the design of active participation situations where students are the protagonists and knowledge is constructed and sustained over time.

The inquiry process: how it unfolds in the classroom 🔗

The inquiry approach does not follow a rigid script, but it does follow a recognisable sequence of activities that build on each other. Understanding this sequence helps teachers plan lessons that are both structured and genuinely open-ended.

Questioning 🔗

Everything begins with a question. Students observe a phenomenon – a chemical reaction, a weather pattern, an ecological change – and generate questions about what they see. In inquiry-based learning, problem-finding (questioning) is equally important to problem-solving. Teachers encourage students to move beyond closed, factual questions toward open-ended ones that can be investigated. This questioning phase activates curiosity and gives students ownership of the direction their learning will take.

Hypothesis design 🔗

Once a question is established, students form a hypothesis – a testable prediction based on prior knowledge and initial observations. In guided inquiry, students write a statement about the inquiry question that is testable, then plan how to test it. This is not merely a procedural step; designing a hypothesis requires students to think logically, draw on existing scientific understanding, and frame their thinking precisely.

Investigation and data collection 🔗

With a hypothesis in place, students design or follow an investigation to collect data. This may involve lab experiments, field observation, research from multiple sources, or the use of simulations. Inquiry teaching expands beyond investigations and experiments to include scientific model development, revision, and explanation critique – giving students multiple modes of engaging with evidence.

Analysis and reflection 🔗

Gathering data is only part of the process. Students must then analyse their findings, evaluate whether the evidence supports their hypothesis, and consider alternative explanations. Science process skills in this phase involve observing, measuring, classifying, hypothesising, experimenting, and interpreting data and conclusions. This analytical phase is where much of the deep learning happens – students are not just recording results, they are making meaning from them.

Communication of findings 🔗

The final phase involves students presenting their conclusions – through written reports, class discussions, or presentations. This step reinforces scientific literacy and pushes students to organise their reasoning and articulate it clearly. Communicating findings also opens the door to peer critique, which deepens understanding further.

Levels of inquiry: from structured to open 🔗

One of the most important things to understand about the inquiry approach is that it is not a single, uniform method. It exists on a continuum, and where a teacher positions a lesson on that continuum depends on the readiness of the learners, the learning goals, and available resources.

Drawing on Herron’s framework (1971), inquiry instruction for science classrooms is defined in four incremental levels:

Confirmation inquiry 🔗

At this level, students carry out an activity whose outcome is already known. The purpose is not discovery but verification – students confirm a principle by following a teacher-directed procedure. This is useful for introducing new concepts and building foundational procedural skills.

Structured inquiry 🔗

The teacher provides the question and the procedure, but students are responsible for formulating their own explanation based on the evidence they collect. The question and procedure are still provided by the teacher; however, students generate an explanation supported by the evidence they have collected. This level develops analytical thinking without requiring students to navigate the entire inquiry process independently.

Guided inquiry 🔗

The teacher provides the question, but students design or select their own procedures. This level constitutes an intermediary stage that helps students transition from structured to open inquiry, building independence and problem-solving skills progressively.

Open inquiry 🔗

At the highest level, students formulate their own questions, design their own procedures, and draw their own conclusions. This mirrors authentic scientific research. Open inquiry has the potential to stimulate long-term motivation among students, though it requires significant scaffolding and is most appropriate for learners who have already developed foundational inquiry skills through the earlier levels.

The key principle here, as emphasised by researchers and educators, is progression. Students are expected to practise limited and structured inquiry in order to develop the necessary skills to eventually perform guided and then open inquiry, becoming more independent in their learning as they progress.

How the inquiry approach builds key skills 🔗

Critical thinking 🔗

Inquiry demands that students constantly evaluate evidence, question assumptions, and justify conclusions. A systematic review and meta-analysis published in the Eurasia Journal of Mathematics, Science and Technology Education (2025) found a substantial positive effect of IBL on critical thinking skills, with a mean effect size of 1.27 across 36 studies. This finding underscores that the inquiry approach is not just philosophically appealing – it produces measurable cognitive gains.

Problem-solving 🔗

Science is fundamentally about solving problems, and the inquiry approach puts problem-solving at the centre of learning. Students learn to break down complex questions, identify variables, interpret data, and reach reasoned conclusions. Studies have shown that IBL improves students’ critical thinking, problem-solving skills, and ability to ask questions. These are not skills limited to the science classroom – they transfer across subjects and into everyday life.

Creativity 🔗

Inquiry encourages students to think beyond a single correct answer. Designing an experiment, generating alternative hypotheses, or proposing a novel explanation all require creative thinking. Research shows that IBL promotes creativity alongside higher-order thinking, self-directed learning, and student motivation. When students are given the freedom to ask their own questions, they often surprise both themselves and their teachers with the directions they pursue.

Self-directed learning 🔗

Perhaps one of the most significant long-term outcomes of the inquiry approach is that students learn how to learn. IBL builds on what students already know, allows them to construct their own knowledge, and encourages them to become self-directed learners. This capacity for independent knowledge-seeking is increasingly vital in a world where information is abundant but the ability to evaluate and apply it is rare.

The teacher’s role in inquiry-based science 🔗

The inquiry approach does not diminish the teacher’s role – it transforms it. Rather than being the primary source of information, the teacher becomes a facilitator, questioner, and guide. Teaching science as inquiry requires teachers to go beyond their traditional role as knowledge transmitters and forge collaborative partnerships with their students.

Effective inquiry teaching involves posing the right questions at the right moments, providing scaffolding where learners need support, and knowing when to step back and let students lead. Teachers can guide pupils successfully through the process of open inquiry by explicitly addressing the conceptual, epistemic, social, and procedural domains of scientific knowledge in the subsequent phases of inquiry. This kind of responsive, domain-sensitive facilitation is what separates a productive inquiry session from an unstructured one.

Research with science teachers shows that those with positive beliefs about IBL are more willing to improve classroom practices and are better positioned to help students shift from teacher-centred to student-centred pedagogy. Teacher preparation and professional development are therefore essential to the successful implementation of inquiry-based science.

Inquiry and the construction of scientific knowledge 🔗

Beyond the skills it builds, the inquiry approach carries a deeper purpose: it changes how students understand science itself. Traditional instruction can inadvertently reinforce the idea that science is a fixed collection of facts discovered by distant experts. The inquiry approach, by contrast, portrays science as a living, ongoing process. The inquiry-based approach portrays science as a process for understanding the natural world and as a way of thinking and reasoning, allowing for diverse methods to develop and renovate knowledge.

When students formulate their own hypotheses, test them, encounter unexpected results, and revise their thinking, they experience firsthand the tentative and self-correcting nature of scientific knowledge. This is not just good pedagogy – it is accurate epistemology. It gives students an authentic understanding of what science is and how it works, which is arguably more important than any specific content they might learn.

Challenges and considerations 🔗

The inquiry approach, while powerful, is not without its challenges. Open inquiry in particular can be demanding in terms of time, resources, and classroom management. The open inquiry approach is not widely practised in science classrooms due to the challenges it presents in relation to time and resources. Additionally, research suggests that for beginning learners, overly unstructured inquiry without adequate teacher guidance can be counterproductive. For beginning learners of scientific inquiry, more structured explanations and guidance from teachers are strongly encouraged.

The solution is not to abandon inquiry but to implement it thoughtfully – matching the level of openness to the readiness of the learner, scaffolding skills progressively, and combining inquiry with other effective methods. A well-designed inquiry lesson is purposeful, not permissive. The teacher makes deliberate choices about how much structure to provide and when to release responsibility to students.

What do you think? How might the level of inquiry you use in your science lessons change depending on whether you are introducing a new concept or consolidating one students have already explored? And what challenges have you observed – or do you anticipate – when trying to shift from structured to more open forms of inquiry in your classroom?

References

1. https://en.wikipedia.org/wiki/Inquiry-based_learning
2. https://ssec.si.edu/stemvisions-blog/what-inquiry-based-science
3. https://www.sciencedirect.com/topics/social-sciences/inquiry-based-learning
4. https://www.frontiersin.org/journals/education/articles/10.3389/feduc.2023.1170487/full
5. https://www.edutopia.org/article/inquiry-led-science-classroom/
6. https://www.michiganseagrant.org/lessons/teacher-tools/guided-inquiry-process/
7. https://apcentral.collegeboard.org/courses/resources/inquiry-instruction-ap-science-classroom-approach-teaching-learning
8. https://www.sciencedirect.com/article/pii/S1747938X24000101
9. https://www.michiganseagrant.org/lessons/wp-content/uploads/sites/3/2019/04/The-Many-Levels-of-Inquiry-NSTA-article.pdf
10. https://files.eric.ed.gov/fulltext/EJ1001631.pdf
11. https://inquiryineducation.wordpress.com/4-levels-of-inquiry/
12. https://www.ejmste.com/article/the-effect-of-inquiry-based-learning-on-students-critical-thinking-skills-in-science-education-a-15988
13. https://diser.springeropen.com/articles/10.1186/s43031-024-00119-3
14. https://us.sagepub.com/sites/default/files/upm-binaries/36904_Chapter_1___Teaching_Science_as_Inquiry.pdf
15. https://www.tandfonline.com/doi/full/10.1080/09500693.2016.1147660
16. https://link.springer.com/article/10.1007/s43545-024-00846-4
17. https://stemeducationjournal.springeropen.com/articles/10.1186/s40594-022-00329-z