SHS2 Agriculture · Semester 2 Week 6: Principles of Natural Resource Conservation in Agriculture

Lesson notes

Learning Objectives

Indicator: 2.3.2.LI.3 - Describe the types of fertilizers and their effects on crop production

By the end of the lesson, learners can:

Define fertilizer in their own words and distinguish between organic and inorganic fertilizers.
Identify at least four types of organic fertilizers and four types of inorganic fertilizers commonly used in Ghanaian agriculture.
Explain the effects, both positive and negative, of fertilizer use on crop production and soil health.
Classify fertilizer application methods and match each method to appropriate crop or soil conditions.
Justify the choice of a particular fertilizer type for a given farming scenario based on cost, availability, and environmental impact.

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Curriculum details

Strand: Food Production and Natural Resource Conservation (Strand 3)
Sub-strand: Principles of Natural Resource Conservation in Agriculture (3.2)
Content standard: 2.3.2.CS.3 - Demonstrate knowledge, understanding and skills of soil nutrients, fertility and productivity 2.3.2.LO.3 Use the knowledge acquired to explain the role of soil nutrients in soil fertility and productivity in crop production.
Indicator: 2.3.2.LI.3 - Describe the types of fertilizers and their effects on crop production
Suggested placement: Semester 2, Week 6 (Week 26 of the year)
Our suggestion, laid out in curriculum order across three terms of twelve weeks. NaCCA does not fix the week, so follow your school's scheme of learning.
Curriculum reference: NaCCA curriculum document, p. 155

Exemplars (from the NaCCA curriculum)

Think-pair-share: Learners in pairs brainstorm to come up with the meaning of fertilizer.
Initiating talk for learning: Learners in mixed-ability groups watch a video or documentary on the types of fertilizers used in crop production and discuss their observations in class.
Collaborative learning: Learners in mixed-ability groups discuss the merits, demerits and effects of using the various types of fertilizers.
Experiential learning: Learners in gender-based groups demonstrate the various fertilizer application methods in the school farm under the guidance of a technician.
Project-based learning (Homework): Learners in gender-based groups embark on a project to prepare compost for use on the school farm. Learners present a portfolio on the project for assessment.
Assessment (2.3.2.AS.3). The document marks these depth-of-knowledge levels for this indicator: Level 2 Skills of conceptual understanding; Level 3 Strategic reasoning; Level 4 Extended critical thinking and reasoning.
Teaching and Learning Resources:
- Sample of soils
- Measuring cylinder
- Filter paper
- Litmus paper
- Funnel
- Beaker
- Functional internet connectivity
- Video/pictures of plant nutrient deficiency symptoms