Differences between Monocotyledons and Dicotyledons
Subject :
Agricultural Science
Topic :
Crop Plant forms (cont.) (d) Monocotyledons (e) Dicotyledons (Differences between Monocot & Dicot Required).
Class :
JSS 1Â / Basic 7
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Term :
First Term
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Week :
Week 8
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Previous Knowledge :
The pupils have previous knowledge of
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Behavioural Objectives :Â At the end of the lesson, the pupils should be able to
- List five crops that are monocotyledons and five crops that are dicotyledous.
- state 6 differences between monocotyledons and dicotyledous.
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Content :
CONTENT:
i. Monocotyledon and Dicotyledon plants
ii. Difference between monocotyledon and Dicotyledon plants
Sub – Topic 1: Monocotyledon and Dicotyledonous.
Monocotyledons plants: These are plants with one seed leaf or Cotyledons e.g. maize, rice, oil palm, coconut, wheat, millet, banana etc.
Dicotyledonous plants: These are plants with two seed leaves or cotyledons e.g. cowpea, mango, citrus, cashew groundnuts, tomatoes, kola, mango etc.
EVALUATION
(i) List five crops that are monocotyledons and five crops that are dicotyledous.
Sub – Topic 2: DIFFERENCE BETWEEN MONOCOTYLEDONS & DICOTYLEDONS
STRUCTURE | MONOCOT FEATURES | DICOT FEATURES | |
1.
2. 3. 4. |
Root
Stem Seeds Pollinations. |
Fibrous root system.
Single erect stem without branches. One seed leaves or cotyledons Usually by wind |
Tap root system.
Stem with many branches. Two seed leaves or cotyledons. Usually by insects and other |
5. | Leaf | Narrow and long | Broad and short |
6. | Leaf venation | Paralleled veined | Net veined |
7. | Germination | By hypogeal (seed remains below the soil | By epigeal (seed comes above the soil. |
8. | Flowers | Many and unscented | Few coloured and scented |
(i) State 6 differences between monocotyledons and dicotyledous.
Diagrams: draw
A monocot plant of maize with its complete parts
A dicot plant e.g. tomatoes with its complete parts.
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Differences between Monocotyledons and Dicotyledons
Structure | Monocot Features | Dicot Features | ||
1 | Root | i. Fibrous root system. | Tap root system. | |
2 | Stem | ii. Single erect stem without branches. iii. Scattered vascular bundles. |
Stem with many branches Vascular bundles in ring form. |
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3 | Seeds | iv. One seed leaf or cotyledon v. Exhibits hypogeal germination |
Two seed leaves or cotyledons. Exhibits epigeal germination |
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4 | Flower | vi. Usually pollinated by wind vii. None colourful, inconspicuous and unscented. viii. Floral parts in threes or multiples of threes |
Pollinated by insects and other animals. Colourful, inconspicuous and scented. Floral parts in four or five or multiples of four or five. |
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5 | Leaf | ix. Leaves are long and narrow. x. Leaf stalk or petiole is absent. xi. Have parallel veination. xii. The leaf base is broad and clasp around the stem. |
Leaves are short and broad. Have leaf stalk or petiole. Leaves are with net veination. The leaf base is narrow. |
EVALUATION
- Give five differences between a maize seed and cowpea.
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Presentation
The topic is presented step by step
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Step 1:
The class teacher revises the previous topics
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Step 2.
He introduces the new topic
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Step 3:
The class teacher allows the pupils to give their own examples and he corrects them when the needs arise
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Conclusion :
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The class teacher wraps up or conclude the lesson by giving out short note to summarize the topic that he or she has just taught.
The class teacher also goes round to make sure that the notes are well copied or well written. He or she does the necessary corrections when the need arises.
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Assignment :
Prepare for the next lesson by reading about
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ASSIGNMENT
Each student to draw a germinating seedling of maize and cowpea to show hypogeal and epigeal germination.
WEEKEND ASSIGNMENT
Plant maize and groundnut seeds and observe them after germination and classify them into monocotyledons and dicotyledons.