Crop Plant forms (cont.) (d) Monocotyledons (e) Dicotyledons (Differences between Monocot & Dicot Required).
JSS 1 / Basic 7
Previous Knowledge :
The pupils have previous knowledge of
Crop Plant Forms (cont. (a) Aquatic form(b) Terrestrial Form(c) Broad leaf Crops (d)Narrow leaf crops.
Behavioural Objectives : 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.
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.
(i) List five crops that are monocotyledons and five crops that are dicotyledous.
Sub – Topic 2: DIFFERENCE BETWEEN MONOCOTYLEDONS & DICOTYLEDONS
|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
||Narrow and long
||Broad and short
||By hypogeal (seed remains below the soil
||By epigeal (seed comes above the soil.
||Many and unscented
||Few coloured and scented
(i) State 6 differences between monocotyledons and dicotyledous.
A monocot plant of maize with its complete parts
A dicot plant e.g. tomatoes with its complete parts.
Differences between Monocotyledons and Dicotyledons
||i. Fibrous root system.
||Tap root system.
||ii. Single erect stem without branches.
iii. Scattered vascular bundles.
|Stem with many branches
Vascular bundles in ring
||iv. One seed leaf or cotyledon
v. Exhibits hypogeal germination
|Two seed leaves or cotyledons.
Exhibits epigeal germination
||vi. Usually pollinated by wind
vii. None colourful, inconspicuous
viii. Floral parts in threes or
multiples of threes
|Pollinated by insects and other
Colourful, inconspicuous and
Floral parts in four or five or
multiples of four or five.
||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.
- Give five differences between a maize seed and cowpea.
The topic is presented step by step
The class teacher revises the previous topics
He introduces the new topic
The class teacher allows the pupils to give their own examples and he corrects them when the needs arise
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.
Prepare for the next lesson by reading about
Each student to draw a germinating seedling of maize and cowpea to show hypogeal and epigeal germination.
Plant maize and groundnut seeds and observe them after germination and classify them into monocotyledons and dicotyledons.
(Visited 502 times, 1 visits today)