Science Laboratory and Activities: Activity-Based Teaching
In the REET Level 2 Science pedagogy section, laboratory and activity-based teaching is a central subject, where questions are built around the principle of 'learning by doing' and practical classroom management. This page explains the importance of activity-based science teaching, safety rules, and low-cost teaching materials, with examples.
- No direct REET 2024 question, syllabus-based
- Teacher-training level
- 8 min read
How this topic is asked in REET
We have no verified question related to science laboratory work and activities on record from the REET 2024 paper, so we are not showing any fabricated past question here. This note is based on the wording of the REET Level 2 Science pedagogy syllabus ('methods of teaching science' and 'activities'). This topic is clearly included in the syllabus, so there is a strong chance that questions on the concept, importance, or safety rules of activity-based teaching will appear in future papers.
Why activity-based science teaching matters
Science is a practical, experimental subject — its concepts cannot be fully understood just by reading or memorising. John Dewey's famous principle of 'Learning by Doing' holds that a concept is only understood in a lasting way when a child experiments, observes, and draws conclusions for themselves — the teacher simply telling them is not enough.
According to Jean Piaget's theory of constructivism, a child does not simply 'receive' knowledge from outside; rather, they 'construct' it themselves from their own experiences. Laboratory activities give a child direct, hands-on experience, letting them understand a concept through their own discovery — this is also the basis of Jerome Bruner's discovery learning.
Activity-based teaching develops not just knowledge but also science process skills such as observation, classification, measurement, estimation and drawing conclusions — which, according to the National Curriculum Framework (NCF), is a core objective of science teaching.
The National Curriculum Framework (NCF 2005) also states clearly that science teaching should not be memory-centred, but should instead build curiosity, observation, and reasoning ability — in other words, a child should be taught to 'think like a scientist', not just to memorise textbook facts. This is exactly why the pedagogy section of REET repeatedly gives importance to activity-based teaching.
Laboratory safety and low-cost teaching materials
Laboratory safety is extremely important at the school level — sharp or hot equipment should be used only under a teacher's supervision, glass equipment should be handled carefully, children should be told about safe distance and precautions in advance for activities involving fire/flame (such as a spirit lamp), and unsafe habits like tasting or smelling a chemical or sample should be stopped immediately.
It is not necessary for every school to have an expensive laboratory — the concept of 'Low-Cost No-Cost Teaching Aids' comes up repeatedly in REET pedagogy. Simple, effective experiments can be conducted with everyday items such as an empty bottle, an old carton, matchsticks, rubber bands, leaves, and pebbles — for example, showing the need for oxygen in combustion using a candle and a glass, or checking for the presence of starch in leaves with the iodine test.
This concept is especially important for rural or resource-limited schools, because many government schools in Rajasthan do not have a fully equipped laboratory. In such situations, a teacher's creativity — making an effective activity out of whatever is available nearby — becomes the key to quality science teaching, and it is exactly this practical understanding that the REET exam tests.
Key theorists associated with activity-based teaching
| Theorist | Key idea |
|---|---|
| John Dewey | 'Learning by Doing' — learning through direct experience is the most lasting |
| Jean Piaget | Constructivism — a child constructs knowledge themselves from their experiences |
| Jerome Bruner | Discovery Learning — giving the child the opportunity and guidance to discover for themselves |
| Lev Vygotsky | Socio-cultural theory — learning through group/collaborative activity and adult support is more effective |
REET often asks you to match a theorist with their key idea.
Examples of activities by class level
| Concept | Example activity | Skill developed |
|---|---|---|
| Parts of a plant | Visiting the school garden to identify and draw the root, stem, and leaf | Observation, classification |
| A simple electric circuit | Connecting a simple circuit at home using a battery, wire and bulb | Practical skill, understanding cause and effect |
| States of matter | Watching ice melt into water and water boil into steam | Observation, drawing conclusions |
| Photosynthesis in plants | Covering part of a leaf with black paper and doing an iodine test on it a few days later | Forming a hypothesis, comparison, drawing conclusions |
After every activity, having children write in an observation diary/practical record book should be part of the assessment.
Using this in the classroom
Planning
Before starting each chapter, the teacher should decide which concept is best explained through which simple, low-cost activity — this makes the lesson more interesting and clearer from the start.
Group work
Dividing children into small groups for an activity also develops social skills such as cooperation, communication, and taking turns, not just scientific understanding.
Safety rehearsal
Before any new activity, the teacher should try it out once themselves and give clear safety instructions to the children — especially where fire, sharp objects, or chemicals are involved.
Assessment
After an activity, the teacher should ask not just for the result but questions like 'what did you observe and why did it happen' — this checks both a child's understanding and their reasoning ability, which is the core idea behind Continuous and Comprehensive Evaluation (CCE).
Keeping records
After every activity, children should write the date, purpose, observation and conclusion in a small practical record book — this organises scientific thinking alongside writing skills.
Exam tip
Whenever a question uses words like 'learning by doing' or 'learning from one's own experience', lean towards John Dewey (Learning by Doing) and Constructivism as the answer; when the question focuses on 'discovering on one's own without being told', Jerome Bruner's Discovery Learning is more likely to be the answer.
Practice questions
Question 1
The principle of 'Learning by Doing' is mainly associated with which educationist?
- Aजॉन डीवी
- Bजीन पियाजे
- Cजेरोम ब्रूनर
- Dलेव वायगोत्स्की
Explanation
The 'Learning by Doing' principle is associated with John Dewey, according to whom a child learns most effectively through direct experience and action.
Question 2
According to Constructivism, how does a child acquire knowledge?
- Aकेवल शिक्षक के बताने से
- Bस्वयं के अनुभवों से ज्ञान का निर्माण करके
- Cकेवल पाठ्यपुस्तक रटकर
- Dपरीक्षा देकर
Explanation
According to constructivism (Jean Piaget), a child does not receive knowledge from outside, but constructs it themselves based on their own direct experiences.
Question 3
A science teacher does not have expensive laboratory equipment. Through which measure can they continue activity-based teaching?
- Aगतिविधियाँ पूरी तरह बंद कर दें
- Bकेवल पाठ्यपुस्तक पढ़ाएँ
- Cदैनिक जीवन की सामान्य वस्तुओं से कम लागत की शिक्षण सामग्री बनाएँ
- Dबच्चों को घर पर प्रयोगशाला खरीदने को कहें
Explanation
The concept of Low-Cost No-Cost teaching material shows that effective activities can be run even with easily available items.
Question 4
Which activity is suitable for showing that light is necessary for photosynthesis in plants?
- Aपत्ती को पानी में उबालना
- Bपत्ती का वज़न करना
- Cपत्ती को धूप में सुखाना
- Dपत्ती के भाग को काले कागज़ से ढककर कुछ दिन बाद आयोडीन परीक्षण करना
Explanation
No starch forms in the covered part of the leaf (no colour change in the iodine test), while starch forms in the exposed part — this lets children understand the role of light for themselves through the experiment.
Question 5
Jerome Bruner's Discovery Learning is based on which idea?
- Aबच्चे को स्वयं खोजकर सीखने का अवसर देना
- Bबच्चे को सीधे उत्तर बता देना
- Cकेवल परीक्षा पर ज़ोर देना
- Dकेवल गृहकार्य देना
Explanation
In discovery learning, the teacher does not give the answer directly, but instead gives the child the opportunity and guidance to think, experiment, and reach a conclusion on their own.
Question 6
When conducting an activity involving fire/flame in the laboratory, what should the teacher do first?
- Aबच्चों को बिना बताए गतिविधि शुरू करवा दें
- Bस्पष्ट सुरक्षा निर्देश देकर व निगरानी में गतिविधि करवाएँ
- Cगतिविधि पूरी तरह टाल दें
- Dकेवल एक बच्चे से करवाएँ, बाकी को दूर भेज दें
Explanation
For an activity involving fire or a sharp object, giving clear safety instructions and supervising the activity are essential to prevent accidents — avoiding the activity altogether is not the solution.
Question 7
For what purpose is a child asked 'What did you observe and why did it happen' after an activity?
- Aसमय बर्बाद करने के लिए
- Bकेवल अनुशासन जाँचने के लिए
- Cबच्चे की अवलोकन व तार्किक समझ का मूल्यांकन करने के लिए
- Dकेवल अंक देने के लिए
Explanation
This question checks not just a child's memory but their observation and logical understanding — this is part of Continuous and Comprehensive Evaluation (CCE).
Question 8
Which of the following is NOT included among science process skills?
- Aअवलोकन
- Bवर्गीकरण
- Cनिष्कर्ष निकालना
- Dकेवल रटना
Explanation
Science process skills include observation, classification, measurement, estimation, and drawing conclusions — rote memorisation is not included, because it is based on memory rather than understanding.
Question 9
What is the pedagogical benefit of conducting group activities?
- Aसहयोग, संचार और सामाजिक कौशल का विकास भी होता है
- Bकेवल समय की बचत
- Cबच्चे कम सीखते हैं
- Dशिक्षक को कुछ नहीं करना पड़ता
Explanation
Group activity develops scientific understanding along with social skills such as cooperation, taking turns, and communication among children.
Question 10
A teacher melts ice into water and boils water into steam. Which concept does this activity mainly explain?
- Aप्रकाश-संश्लेषण
- Bपदार्थ की अवस्थाओं में परिवर्तन
- Cविद्युत परिपथ
- Dचुम्बकत्व
Explanation
Ice turning to water and water turning to steam is an activity that helps children understand, through direct experience, the changes between the three states of matter (solid, liquid, gas).
Frequently asked questions
Who gave the principle of 'Learning by Doing'?+
This principle is associated with American educationist John Dewey, according to whom a child learns most lastingly through their own experimentation and experience.
What does 'Low-Cost No-Cost Teaching Aids' mean?+
It means teaching material made from things that are easily available, cheap, or free in everyday life (such as bottles, cartons, leaves), which makes effective teaching possible even without expensive laboratory equipment.
Why is safety important in laboratory activities?+
Carelessness in activities involving fire, sharp equipment, or chemicals can lead to injury or accident, which is why the teacher's supervision and safety instructions given in advance are essential.
Who is the theory of constructivism associated with?+
This theory is mainly associated with Jean Piaget, according to whom a child does not receive knowledge from outside but constructs it themselves from their experiences.
How many questions come from this topic in REET?+
This topic is part of the REET Level 2 Science pedagogy syllabus, but no verified direct question came from it in REET 2024 — since it is in the syllabus, a question may appear in the future.
What does NCF 2005 say about science teaching?+
According to NCF 2005, science teaching should not be memory-centred, but should instead build curiosity, observation, and reasoning ability, so that a child learns to think from a scientific point of view rather than just memorising facts.
What is included in science process skills?+
This includes skills such as observation, classification, measurement, estimation, and drawing conclusions, which develop naturally through activity-based teaching.
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Change Log
- 17 September 2026 — English page published — mirrors the fact-checked Hindi page, independently bilingual-accuracy checked