Biology at Senior Secondary 1 (SS1) is the foundation year for students who intend to pursue science-related subjects. The SS1 Biology scheme of work sets out the topics, learning outcomes, practical activities, assessment strategies and time allocation across the three school terms. A well-structured scheme helps teachers pace lessons, ensures national curriculum alignment, and prepares students for terminal school exams and national examinations in later years.
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This guide presents an in-depth, practical SS1 Biology scheme of work for First, Second and Third Term. It includes weekly topic breakdowns, suggested learning outcomes, practicals, assessment blueprints, teaching tips, and recommended resources — all aligned with the Nigerian curriculum framework (NERDC) and widely used school schemes of work.
Why a Termly Scheme of Work Matters
A scheme of work is the teacher’s road map: it translates the syllabus into weekly lessons, specifying what to teach, how long to spend, what practicals to carry out, and how students will be assessed. For SS1 Biology, a termly breakdown ensures that teachers:
- Cover core biological concepts systematically.
- Include practical activities that develop scientific skills (observation, measurement, recording, interpretation).
- Align classroom activities with learning outcomes in the national curriculum (NERDC).
Using a scheme avoids last-minute cramming, helps distribute practical work appropriately, and provides clarity for classroom assistants and substitute teachers.
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Curriculum Basis: NERDC & National Expectations
The Nigerian Educational Research and Development Council (NERDC) provides the curriculum framework for junior and senior secondary school subjects. While individual states or schools may add local adjustments, the NERDC curriculum defines the competencies and broad topics to be taught in SS1 Biology — such as recognizing living things, cell structure and function, classification, nutrition, and basic ecology. Teachers should always cross-check their termly plan against the official NERDC syllabus for compliance.
In practice, many schools and teachers use consolidated SS1 Biology schemes of work derived from the national syllabus, adapted into weekly lesson plans and lesson notes available through educational portals (syllabus.ng, classhall, edudelight, lesson note sites). These are excellent practical reference points when building term-by-term plans.
SS1 Biology — Term by Term Breakdown (Week-by-Week)
Below is a widely used and classroom-tested weekly scheme that you can adopt or adapt. Each term is assumed to have 12–13 weeks (including revision and exams). For each week we give a topic, key points, suggested learning outcomes and practical activities.
FIRST TERM (Weeks 1–12) — Foundations of Biology & Living Systems
Week 1 — Introduction to Biology
- Topics: Definition of Biology; branches of biology; relevance of biology to everyday life and careers.
- Learning outcomes: Students can define biology, list branches (zoology, botany, microbiology, ecology, genetics) and suggest career paths.
- Practical/activity: Class discussion — “What biologists do”; poster work on branches.
Week 2 — Characteristics of Living Things
- Topics: Movement, growth, respiration, sensitivity, reproduction, excretion, nutrition.
- Outcomes: Identify features that distinguish living from non-living things; classify simple examples.
- Activity: Observation checklist — compare plant leaf, stone, and insect.
Week 3 — Levels of Organization
- Topics: Cell, tissue, organ, system, organism; examples in plants and animals.
- Outcomes: Explain levels of organization and give examples (e.g., leaf → leaf tissue → leaf epidermis → plant).
- Practical: Microscopic observation of onion epidermis/cheek cells (simple wet mount).
Week 4 — Classification of Living Things (Introduction)
- Topics: Rationale for classification; simple grouping (plants vs animals); kingdom overview.
- Outcomes: Explain why classification is important and identify major groups.
- Activity: Sorting exercise — group specimens or pictures into categories.
Week 5 — The Cell: The Basic Unit of Life
- Topics: Cell theory; types (prokaryotic, eukaryotic); plant vs animal cells.
- Outcomes: Define cell; identify organelles and their functions (nucleus, cytoplasm, cell membrane, cell wall, chloroplast, mitochondria).
- Practical: Draw labelled diagrams of plant and animal cells; microscopic observation.
Week 6 — Cell Structure & Function (Organelles)
- Topics: Functions of organelles, cell specialization.
- Outcomes: Match organelles with functions; explain why cells are specialized.
- Practical: Prepare slides of plant tissue, identify organelles under microscope.
Week 7 — Nutrition in Plants
- Topics: Photosynthesis (raw materials, products), simple balanced equation, importance of chlorophyll.
- Outcomes: State the photosynthesis equation; explain role of sunlight and chlorophyll.
- Practical: Variegated leaf test for starch (iodine test).
Week 8 — Nutrition in Animals
- Topics: Digestive systems (simple overview), feeding types (herbivore, carnivore, omnivore).
- Outcomes: Describe parts of digestive tract and functions.
- Practical: Field observation or diagrams of digestive systems.
Week 9 — Modes of Nutrition & Feeding Relationships
- Topics: Autotrophs vs heterotrophs; food chains and food webs.
- Outcomes: Construct simple food chains; identify producers, consumers, decomposers.
- Activity: Build a class food web from local ecosystem examples.
Week 10 — Basic Ecological Concepts
- Topics: Habitat, niche, population, community, ecosystem.
- Outcomes: Explain ecosystem components and energy flow.
- Practical: Microhabitat study (school compound).
Week 11 — Growth, Movement & Irritability
- Topics: Growth in plants/animals, responses to stimuli (tropisms), locomotion.
- Outcomes: Describe examples of growth and responses (phototropism, geotropism).
- Practical: Seed germination observations.
Week 12 — Revision & First Term Examination
- Activities: Revision lessons, practical assessment, mock exam.
SECOND TERM (Weeks 1–12) — Cells, Tissues, Support & Transport
Week 1 — Revision & Diagnostic Assessment
- Topic: Quick revision of first term; diagnose weak areas to inform second-term pacing.
Week 2 — The Cell and Its Environment
- Topics: Diffusion, osmosis, active transport; cell membrane functions.
- Outcomes: Explain diffusion and osmosis with examples; describe impact on plant cells.
- Practical: Osmosis experiment using potato chips in different salt concentrations.
Week 3 — Properties and Functions of Cells (continued)
- Topics: Cell division (brief introduction to mitosis), cell specialization.
- Outcomes: Explain importance of cell division and examples of specialized cells.
- Activity: Microscopic viewing of onion root tip (if facility allows).
Week 4 — Tissues in Plants and Animals (Introduction)
- Topics: Types of tissues — epithelial, connective, muscular, nervous (animals) and meristematic vs permanent (plants).
- Outcomes: Identify tissue types and functions.
- Practical: Prepare and identify tissue slides.
Week 5 — Skeletal & Supporting Systems in Animals
- Topics: Functions of skeleton, types of skeleton (endoskeleton, exoskeleton), joints.
- Outcomes: Describe skeletal functions and simple joint movement.
- Activity: Model skeleton with clay/sticks to demonstrate joint types.
Week 6 — Transport Systems: Circulatory Overview
- Topics: Blood components, heart structure and function (simple), blood vessel types.
- Outcomes: Identify blood components and describe heart chambers function.
- Practical: Microscope observation of blood smear (where ethical/appropriate) or models.
Week 7 — Respiration & Gas Exchange
- Topics: Aerobic vs anaerobic respiration; breathing mechanisms in humans and plants.
- Outcomes: Distinguish respiration from breathing and describe gas exchange.
- Practical: Simple experiments to measure respiration effects (e.g., yeast respiration demonstration).
Week 8 — Excretion & Homeostasis (Intro)
- Topics: Excretory organs (kidneys, skin), basic idea of homeostasis.
- Outcomes: State functions of excretory organs; explain why homeostasis is important.
- Practical: Class discussion and diagram labelling.
Week 9 — Micro-organisms Around Us (Intro)
- Topics: Types of microbes (bacteria, fungi), beneficial vs harmful microbes.
- Outcomes: Recognize microbes in everyday life and their roles (food, disease).
- Practical: Yeast in bread/brew demonstration; observation of mould.
Week 10 — Relevance of Biology to Agriculture & Health
- Topics: Role of biology in farming, pest control, crop improvement; personal hygiene and public health basics.
- Outcomes: Connect biological knowledge to agriculture and community health.
- Activity: Field trip to school garden or local farm (if possible).
Week 11 — Revision & Second Term Examination
- Activities: Revision, practical assessment and term exam.
THIRD TERM (Weeks 1–12) — Reproduction, Heredity, Ecology & Revision
Week 1 — Introduction & Diagnostic Review
- Activities: Identify gaps from second term, set targets for final term.
Week 2 — Reproduction in Plants
- Topics: Asexual vs sexual reproduction; parts of flower and pollination.
- Outcomes: Describe pollination, fertilization, seed formation.
- Practical: Dissect a flower and label parts.
Week 3 — Reproduction in Animals (Intro)
- Topics: Life cycles, mating and parental care basics.
- Outcomes: Describe simple life cycles (e.g., frog, butterfly).
- Activity: Draw life cycle charts.
Week 4 — Heredity & Variation (Basic Concepts)
- Topics: Traits, inheritance basics (phenotype vs genotype simple intro).
- Outcomes: Identify inherited traits and understand that offspring resemble parents.
- Activity: Family trait survey (eye colour, hair type) — simple class data collection.
Week 5 — Adaptation & Natural Selection (Introductory)
- Topics: Adaptations of plants and animals to habitats.
- Outcomes: Explain how features help survival (e.g., cactus spines, camel humps).
- Activity: Case studies of local species.
Week 6 — Population & Community Ecology
- Topics: Population growth factors, competition, predator-prey interactions.
- Outcomes: Describe basic population dynamics and interactions.
- Practical: Classroom modelling of simple population interactions.
Week 7 — Human Impact & Conservation
- Topics: Pollution, deforestation, conservation methods.
- Outcomes: List human activities that affect ecosystems and propose mitigation.
- Activity: Tree planting or community awareness project.
Week 8 — Revision of Key Practical Skills
- Topics: Laboratory safety, use of microscope, record keeping and report writing.
- Outcomes: Produce a complete practical report (aims, method, result, conclusion).
Week 9–11 — Comprehensive Revision
- Activities: Topic-by-topic review, past-paper practice, practicals revision.
Week 12 — Third Term Examination & Promotion Assessment
- Activities: Final exams, practical assessments and end-of-year reports.
Practical Work & Suggested Experiments
Practicals are central to biology. SS1 practicals should focus on simple, safe, low-cost activities that develop observation and recording skills:
- Microscopy: Onion epidermis, cheek cells, pond water organisms.
- Photosynthesis test: Iodine test for starch in leaves.
- Osmosis: Potato chips in solutions.
- Yeast respiration: Demonstrate CO₂ production.
- Flower dissection: Identify reproductive parts.
Always follow safety protocols, provide clear aims, and teach students how to present results and draw justified conclusions. Practical assessment should form part of the termly grade.
Assessment & Examination Blueprint
A balanced assessment plan includes formative and summative elements:
- Formative: Weekly quizzes, classwork, practical logs, oral questions.
- Summative: End-of-term written exam (objective + theory + practical questions), project or fieldwork where applicable.
Suggested exam weighting (adapt to school policy):
- Written (Theory & Objective): 60%
- Practical & Practical Record: 25%
- Test/Continuous Assessment (quizzes, assignments): 15%
Include clear rubrics for composition/written answers and for practical reports (aim, materials, method, results, conclusion, neatness).
Recommended Textbooks & Resources
Schools commonly use the NERDC-recommended texts and widely used local authors for SS1 Biology. Teachers should consult:
- NERDC curriculum documents (official).
- Scheme and lesson notes on syllabus.ng and classhall for weekly plans and worksheets.
- Supplementary resources: local teacher guides, practical manuals and past school papers available on educational portals (passnownow, lessonnote).
When selecting textbooks, prefer editions that explicitly state they align with the current NERDC syllabus.
Lesson Planning Tips & Pedagogical Strategies
- Start with objectives: Every lesson should begin with clear, measurable objectives (what students should be able to do by the end).
- Active learning: Use group work, role-plays, and hands-on activities to engage students.
- Use local examples: Ground ecological and agricultural lessons in local context — this improves relevance.
- Differentiation: Provide extension tasks for faster learners and scaffolded notes for those struggling.
- Integration: Link biology topics to Basic Science, Agriculture, Health Education and Citizenship where appropriate.
Adapting the Scheme to School Constraints
Not every school has a fully equipped lab. Where resources are limited:
- Use low-cost alternatives and demonstrations (e.g., using pond water samples, kitchen yeast, garden plants).
- Organize group practicals so shared equipment is maximally used.
- Use diagrams, videos (offline where internet is unavailable), and teacher demonstrations in place of individual microscopy.
Monitoring & Continuous Improvement
Teachers should review the scheme after each term:
- Analyse assessment outcomes to identify topics needing reteaching.
- Collect student feedback on lesson pacing and practical accessibility.
- Update the scheme yearly to reflect curriculum adjustments and local needs.
Several Nigerian teacher portals publish updated schemes and lesson notes; use these as references but always cross-check with NERDC.
Conclusion
A clear, realistic, and well-resourced SS1 Biology scheme of work helps teachers deliver the curriculum effectively and builds a strong scientific foundation for students. The term-by-term plan presented here covers core SS1 topics — from the cell and basic ecology to reproduction and practical laboratory skills — and is drawn from national curriculum guidance and proven lesson-note collections commonly used in Nigerian schools. Use the weekly breakdowns, practical lists and assessment blueprint as a template; adapt them to the realities of your classroom and school calendar.
For fast implementation: download a local editable PDF of the SS1 Biology scheme (many of the cited portals host downloadable versions) and convert the weekly topics into your school’s lesson-plan template.
