FARM POWER & MACHINERY.

Electrical system of a tractor.
Tractor ignition system.

By the end of the lesson, the learner should be able to:
Name the components in the electrical system of a tractor.
Highlight methods of maintaining a tractor battery.

Refer to diagram for electrical system of a tractor;
Brief discussion.

Chart-  electrical system.
Chart - ignition system.

KLB BK IV
Pg 65-67

Longhorn Bk IV
Pg 61

FARM POWER & MACHINERY.

Tractor cooling system.
Lubrication system of an engine.

By the end of the lesson, the learner should be able to:
Briefly describe air-cooled and water-cooled systems.
Discuss proper maintenance of cooling system.

Brief discussion.

Chart- water cooling system.
diagram of a lubrication system

KLB BK IV
Pg 69-71

Longhorn Bk IV
Pg 63-64

FARM POWER & MACHINERY.

Power transmission system of an engine.
Tractor servicing.

By the end of the lesson, the learner should be able to:
Explain the function of power transmission system.
State the function of the clutch, gearbox and the differential.

Teacher exposes the parts of power transmission system.
Refer to diagrams to identify parts of a power transmission system;
Brief discussion.

Chart- power transmission
system.

KLB BK IV
Pg 72-76

Longhorn Bk IV
Pg 64-65

FARM POWER & MACHINERY.

Tractor drawn implements.

By the end of the lesson, the learner should be able to:
Classify tractor drawn implements on basis of attachment to the tractor.
List down maintenance practices for a trailer.

Teacher?s explanations.


Q/A: maintenance practices.

Charts-
Tractor drawn implements.

KLB BK IV
Pg 77-80

Longhorn Bk IV
Pg 66-7

FARM POWER & MACHINERY.

Disc plough.
Mould board plough.

By the end of the lesson, the learner should be able to:
Label parts of a disc plough
List down maintenance practices for a disc plough.

Q/A: review primary and secondary cultivation.

Drawing labeled diagrams.

Q/A & discussion.

Chart- Disc plough
Chart- Mould board plough

KLB BK IV
Pg 79-80

Longhorn Bk IV
Pg 68-9

FARM POWER & MACHINERY.

Harrows.
Other farm implements.

By the end of the lesson, the learner should be able to:
Identify types of harrows and their uses.
List down maintenance practices for harrows.

Drawing diagrams, Q/A & discussion.

harrows 
illustrative video

KLB BK IV
Pg 82-84
Longhorn Bk IV
Pg 72-77

FARM POWER & MACHINERY.
AGRIC. ECONOMICS III (PRODUCTION ECONOMICS)

Animal drawn implements.
Household firm relationship.

By the end of the lesson, the learner should be able to:
Identify parts of animal drawn implements and state their functions.
List down maintenance practices for an ox-plough, an ox-plough, and an ox-cart.
State merits & demerits of using animal-drawn implements compared to tractor power.

Drawing and labeling an ox-plough;
Probing questions;
Discussion.

Chart:
An ox-plough.
resource person

KLB BK IV
Pg 91-94


Longhorn Bk IV
Pg 82-83

AGRIC. ECONOMICS III (PRODUCTION ECONOMICS)

Gross domestic product (GDP) and Gross National product (GNP). Per Capita Income.
Contribution of Agriculture to national development.

By the end of the lesson, the learner should be able to:
Define the terms GDP & GNP.
Define the term gross national income (GNI).


Define the term per capita income.

Exposition & explanations.



Calculations.

calculator

KLB BK IV
Pg 97-98

Longhorn Bk 4
Pg 87-88

AGRIC. ECONOMICS III (PRODUCTION ECONOMICS)

Land as a factor of production.

By the end of the lesson, the learner should be able to:
Describe the economic value of production of crops and livestock and space for construction of farm buildings, agro-industries & infrastructure.
List down methods of land acquisition.

Exposition of new concepts;
Probing questions to elicit responses;
Brief discussion.

student book

KLB BK IV
Pg 99-100

Longhorn Bk 4
Pg 92-3

AGRIC. ECONOMICS III (PRODUCTION ECONOMICS)

Labor as a factor of production.
Capital.

By the end of the lesson, the learner should be able to:
Define the term labor as used in production.
Explain ways of improving labor productivity.
Identify types of labor.

Oral questions & discussion.

chart

KLB BK IV
Pg 100-2

Longhorn Bk 4
Pg 93-4

AGRIC. ECONOMICS III (PRODUCTION ECONOMICS)

Management as a production factor.
Production function.

By the end of the lesson, the learner should be able to:
State functions of a manager in a farm.
Identify good qualities of a manager.

Q/A & discussion.

KLB BK IV
Pg 103-4

AGRIC. ECONOMICS III (PRODUCTION ECONOMICS)

Production function curves.
Increasing returns production functions.

By the end of the lesson, the learner should be able to:
Illustrate and interpret input-output relationship graphically.

Worked examples: supervised practice.

Graph papers.

KLB BK IV
Pg 106-7
Longhorn Bk 4
Pg 98

AGRIC. ECONOMICS III (PRODUCTION ECONOMICS)

Constant returns production functions.

By the end of the lesson, the learner should be able to:
Constant returns production functions.
Give empirical examples where Increasing returns production functions are experienced.

Tabulate inputs and outputs.
Graphical representation of constant returns production functions.

charts

KLB BK IV
Pg 108-9

Longhorn Bk 4
Pg 99

AGRIC. ECONOMICS III (PRODUCTION ECONOMICS)

Decreasing returns production functions.
Law of diminishing returns.

By the end of the lesson, the learner should be able to:
Decreasing returns production functions.
Give empirical examples where decreasing returns production functions are experienced.

Tabulate inputs and outputs.
Graphical representation of decreasing returns production functions.

graphs

KLB BK IV
Pg 109-10

AGRIC. ECONOMICS III (PRODUCTION ECONOMICS)

Zones of a PF curve.
The principles of substitution. Input-input relationship.

By the end of the lesson, the learner should be able to:
Divide a production function into three zones.
Identify rational zones of production.

Q/A: review AP, MP.
Guided discovery of the three zones.

Chart - Curve showing 3 zones of PF.

KLB BK IV
Pg 113-5
Longhorn Bk 4
Pg 101-2

AGRIC. ECONOMICS III (PRODUCTION ECONOMICS)

Product-product relationship. Supplementary and complementary products.
The principle of equi-marginal returns. The concept of cost.

By the end of the lesson, the learner should be able to:
Give examples of product-product relationship.

Give illustrative examples depicting supplementary and complementary products.

Oral questions: joint products, competitive products.

Discussion.

charts

KLB BK IV
Pg 116-7

Longhorn Bk 4
Pg 103

AGRIC. ECONOMICS III (PRODUCTION ECONOMICS)

Types of revenue.
Farm planning.

By the end of the lesson, the learner should be able to:
Compute total revenue, net revenue and marginal revenue given the relevant information.

Worked examples;
Explanations.

charts

KLB BK IV
Pg 119-120
Longhorn Bk 4
Pg 107

AGRIC. ECONOMICS III (PRODUCTION ECONOMICS)

Making a farm plan.

By the end of the lesson, the learner should be able to:
Outline steps followed in making a farm plan.

Exposition, probing questions & discussion.

KLB BK IV
Pg 122-3
Longhorn Bk 4
Pg 109

AGRIC. ECONOMICS III (PRODUCTION ECONOMICS)

Farm budgeting.
Types of farm budgets.

By the end of the lesson, the learner should be able to:
Define a farm budget.
Analyse importance of farm budgeting.

Exposition & discussion.

chart

KLB BK IV
Pg 123
Longhorn Bk 4
Pg 110

AGRIC. ECONOMICS III (PRODUCTION ECONOMICS)

Farmer?s support services Extension, training & banking.
Credit. Sources of credit.

By the end of the lesson, the learner should be able to:
Describe extension, training & banking as support services to the farmers.

Exposition & explanations.

student book

KLB BK IV
Pg 127-8

Longhorn Bk 4
Pg 112-3

AGRIC. ECONOMICS III (PRODUCTION ECONOMICS)

Artificial insemination & Agricultural research.
Marketing. Farm input suppliers Tractor hire service

By the end of the lesson, the learner should be able to:
Describe A.I. services provided to farmers.
Identify objectives of Agricultural research.
Give examples of Agricultural research centers in Kenya.

Detailed discussion
& exposition of new concepts.

student book
resource person

KLB BK IV
Pg 130-2

Longhorn Bk 4
Pg 115-6

AGRIC. ECONOMICS III (PRODUCTION ECONOMICS)

Risks and uncertainties in farming.

By the end of the lesson, the learner should be able to:
Define the terms risk and uncertainty.
List types of risk and uncertainties.

Brain storming;
Detailed discussion.

KLB BK IV
Pg 134-5

Longhorn Bk 4
Pg 116-7

AGRIC. ECONOMICS III (PRODUCTION ECONOMICS)
AGRICULTURE ECONOMIC IV (FARM ACCOUNTS)

Adjusting to uncertainties and risks.
Financial documents.

By the end of the lesson, the learner should be able to:
Outline ways of adjusting to risks and uncertainties.

Brain storming;
Detailed discussion.

Invoice, receipt, delivery note and a purchase order.

KLB BK IV
Pg 135-6

Longhorn Bk 4
Pg 118-9

AGRICULTURE ECONOMIC IV (FARM ACCOUNTS)

Books of accounts.
Cash book.

By the end of the lesson, the learner should be able to:
Describe features of the ledger and the inventory.

Oral questions & brief discussion.
Illustrative tables.

Cash book.

KLB BK IV
Pg 146-150
Longhorn Bk 4
Pg 124

AGRICULTURE ECONOMIC IV (FARM ACCOUNTS)

Journal & Subsidiary books of the Journal.

By the end of the lesson, the learner should be able to:
Describe features of the journal & subsidiary books of the journal.

Oral questions & brief discussion.
Illustrative tables.

KLB BK IV
Pg 151-3

AGRICULTURE ECONOMIC IV (FARM ACCOUNTS)

Financial statements. Balance sheet.
Solvency of a business.

By the end of the lesson, the learner should be able to:
Describe features of balance sheets.
Prepare a balance sheet.

Make entries in a balance sheet.
Prepare a balance sheet.
Supervised practice.

Balance sheet.

KLB BK IV
Pg 154-7
Longhorn Bk 4
Pg 129-130

AGRICULTURE ECONOMIC IV (FARM ACCOUNTS)

Profit and loss account.

By the end of the lesson, the learner should be able to:
Define a profit and loss account.
Draw a profit and loss A/C.
Compute net profit.

Teacher gives format of profit and loss A/C.
Worked examples.
Supervised practice.

chart 

KLB BK IV
Pg 157-9
Longhorn Bk 4
Pg 132-3