SHS2 Agriculture · Semester 2 Week 8: Health Issues in Crop Production

Lesson notes

Learning Objectives

Indicator: 2.4.1.LI.2 - Classify crop pests and diseases.

By the end of the lesson, learners can:

Group crop pests into at least four major classes (insects, rodents, birds, and mites/nematodes) based on their mode of feeding and the stage of the plant they attack.
Group crop diseases into at least three major classes (fungal, bacterial, and viral) based on their causative agents.
Distinguish between pests and diseases by describing at least three differences in their causes, symptoms, and modes of transmission.
Sort given examples of common crop pests and diseases into their correct classes with at least 80% accuracy.
Justify the classification of a given pest or disease by citing observable features such as symptoms, mode of feeding, or damage caused.

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Curriculum details

Strand: Agriculture and Health (Strand 4)
Sub-strand: Health Issues in Crop Production (4.1)
Content standard: 2.4.1.CS.1 - Demonstrate knowledge, understanding and skills of the effects of common pests and diseases of crops and their causes, symptoms and prevention and control measures. 2.4.1.LO.1 Use the knowledge acquired to analyse the economic importance of pests and diseases in crop production and apply appropriate measures in the prevention and control of crop pests and diseases.
Indicator: 2.4.1.LI.2 - Classify crop pests and diseases.
Suggested placement: Semester 2, Week 8 (Week 28 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.
Source document note: The official curriculum document has a fault in this entry, so the curriculum text above is transcribed exactly as printed:

exemplars - p.158: the document prints this assessment code as "2.4.1AS.2", with no separator before the type token
Curriculum reference: NaCCA curriculum document, p. 158

Exemplars (from the NaCCA curriculum)

Managing talk for learning: Learners in mixed-ability groups brainstorm to come up with the classification of crop diseases and pests.
Collaborative learning: Learners in mixed-ability groups surf the internet to identify plant diseases and pest of Vegetables, Arable and Cash crops. Learners then discuss causative agents, symptoms and mode of transmission for the diseases and mode of feeding, stage of attacking the plant, damage caused, and the effects of damage caused for the pests.
Experiential learning (Homework): Learners in mixed ability groups build a picture portfolio on the pathogenic diseases and pest of Vegetables, Arable and Cash crops indicating their causative agents, symptoms, mode of transmission, mode of
feeding, stage of attacking the plant, damage caused and the effects of damage caused for the pests. Teacher should deliberately involve learners who are introverts and those with speech problems in class discussions, building of portfolio and presentation of results.
Assessment (2.4.1.AS.2). The document marks these depth-of-knowledge levels for this indicator: Level 3 Strategic reasoning.
Teaching and Learning Resources:
- Functional internet connectivity
- Pictures of symptoms of diseases and pest infestation on vegetables, arable, cash crops
- Video/picture of control measures of crop diseases and pest
- Knapsack sprayer
- Agro chemicals for treating diseased and pest infested crops