PROPOSED LESSON
PLAN/NOTE FOR THE FOURTH WEEK ENDING 7th OCTOBER, 2022
2022/2023 ACADEMIC
SESSION
SUBJECT: AGRIC SCIENCE
TOPIC: PLANT FORMS AND
DISTRIBUTION OF CROPS
CLASS: GRADE 7
NUMBER OF STUDENTS: 11
AVERAGE AGE: 11+ YEARS
GENDER: MIXED
PERIOD: 7th
AND 8th PERIOD ON TUESDAY AND FRIDAY RESPECTIVELY
TIME: 1:20-2:00
DURATION: 40 MINUTES
DATE: 03/10/2022
SPECIFIC OBJECTIVES: By
the end of the lesson the students should be able to;
i.
explain parts of Crop Plant;
ii.
discuss monocotyledons and dicotyledon.
ENTRY BEHAVIOUR/
PREVIOUS KNOWLEDGE: Students have already studied the
meaning and origin of agriculture in the previous week.
INSTRUCTIONAL
METHODS/TECHNIC: Questions, simulation, visual.
INSTRUCTIONAL
MATERIALS: Textbook, lesson note, laptop, projector,
marker, whiteboard, Plant sample.
INTRODUCTION: Questions posed
to the students include
Question 1: Mention
the parts of a crop plant.
Expected Answer: leaves,
stem, root
STEP 1: PARTS OF CROP PLANT
Two main parts of crop plants are the
shoot and the root. The shoot consists of all parts of the plant above the
ground, which include the leaves, stem, branches, buds, flowers and fruits,
while the root is the part of the plant below the ground. The organs of the
plant can be divided into two:
a. Vegetative organs:
This includes the root, stem and leaves.
b. Reproductive
organs: This includes flowers and fruits.
Question 2: What is the function of the roots to the plant?
Root system: The functions of roots are to anchor the plants to the soil,
absorb mineral water and mineral salts from the soil and in some plants they
serve as storage organs, for example, onions, potatoes and cassava. There are
two types of root systems;
a. Tap-root system
b. Fibrous root system
In a tap root system,
there is one major root from which various branches or lateral roots arise. A
fibrous root system consists of similar fine roots all of which grow from the
base of the plant stem.
Question 3: What is the function of the stem to the plant?
Stem: The stem bears the leaves, buds, flowers and fruits. Its functions
include support to the leaves, flowers and fruits. It also transport water and
nutrients from the soil and sugar from the leaves.
Question 4: What is the function of the leaves to the plant?
Leaves: A typical leaf consists of a stalk called a petiole and a blade called
the lamina. They contain a very special substance called chlorophyll, which
helps in manufacturing food for plants in the presence of sunlight, through a
process called photosynthesis.
Question 5: What is the function of the flower to the plant?
Flower: The flower is the reproductive part of flowering plants. It is the region
where the male and female organs produce the pollen grain and ovary
respectively.
STEPII: MONOCOTYLEDON AND DICOTYLEDON
A crop
is any cultivated plant, fungus, or alga that is harvested for food, clothing,
livestock fodder, biofuel, medicine or other uses. Crop plant can exist in the
forms below:
(a) Monocotyledons
These
are crop plants which usually have long, narrow leaves. They include certain
families of grasses, lilies, and orchids. The commonly found trees in this
group are the palms, namely, oil palm, coconut palm, royal palm and raffia
palm. Food crops in this group of plants include rice, wheat, millet, maize and
guinea Corn. Sugarcane is an industrial crop which belongs to the same group.
(b) Dicotyledons
Crop
plants in this group usually have broad leaves. They include most trees such as
the silk cotton, iroko, kola, mango, grapefruit, pawpaw and guava trees. Food
crops in the group include most vegetables, for example, sokoyokoto (Gelosia
argenta), okro, ewedu, water leaf (Talinum triangulare), as well as sweet
potatoes, melon, cowpeas and yam. Industrial crops in the group include cocoa,
cashew and cotton.
EVALUATION:
i. differentiate
between monocotyledon and dicotyledon.
ii. List the main
parts of a crop plant and its components.
SUMMARY:
i.
parts of Crop Plant include root and shoot system.
ii.
plant also exist as monocotyledons and dicotyledon.
ASSIGNMENT:
OBJECTIVE QUESTIONS:
1. An example of monocotyledon crop is
(a) yam (b) cassava (c) millet (d) kola
2. An
example of dicotyledon crop is (a) groundnut (b) maize (c) guinea corn (d) rice
THEORY QUESTIONS:
1. Write
short notes on
a. Monocotyledon
crop
b. Dicotyledon
crop
2. List
five crops that are monocotyledons and five crops that are dicotyledons.
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