Clay soil
Subject : Basic science and Technology
Term : Second Term
Class : Primary 2
Week: Week 11
Topic : Clay soil
Behavioural objectives :
At the end of the lesson, the pupils should be able to
- Say the meaning of clay soil
- Mention organisms that can be found in clay soil
- List the properties of clay soil
Previous Knowledge : Learners have the previous knowledge of
that was taught in the previous lesson
Instructional Materials :
- Wall charts
- Pictures
- Related Online Video
- Flash Cards
- Soil Types
Methods of Teaching :
- Class Discussion
- Group Discussion
- Asking Questions
- Explanation
- Role Modelling
- Role Delegation
Reference Materials :
- Scheme of Work
- Online Information
- Textbooks
- Workbooks
- 9 Year Basic Education Curriculum
- Workbooks
Content
Clay Soil is a heavy soil type that benefits from high nutrients. Clay soils remain wet and cold in winter and dry out in summer. These soils are made of over 25 percent clay, and because of the spaces found between clay particles, clay soils hold a high amount of water.
- Small Particle Size. Clay soils have small particles.
- High water retention capacity
- Fertility. Water isn’t the only substance clay holds, it also has its own nutrients which makes it to support the growth of some plants
- Low Workability
- Warming.
- Improvability.
Clay soils rich in fine clay particles are called ‘heavy soils’ and, although hard to manage, are also potentially very fertile when treated in the right way.
Most living organisms are not able to survive in clay soil because of its sticky nature.
However clay soil is good for molding clay pots and other cooking utensils
The clayey soil can be used to make toys and pots because the clayey soil’s intermolecular space is low and it can get sticky when come in contact with water or get wet. As evaporation takes place the pots made up of clayey soil can keep the water cool inside.
Presentation
The topic is presented step by step
Step 1:
The class teacher revises the previous topics
Step 2.
He introduces the new topic
Step 3:
The class teacher allows the pupils to give their own examples and he corrects them when the needs arise
Conclusion
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 by the pupils.
He or she does the necessary corrections when and where the needs arise.
Evaluation
Part A
Objectives
- The best soil for molding clay pot is __________ soil (a). Sandy (b). Loamy (c). Clay
- __________ is soil composed mostly of sand, silt, and a smaller amount of clay. (a). Clay (b). Loamy (c). Sandy
- __________ is not an example of type of soil (a). Sandy (b). Mud (c). Clay
- __________ soil retains nutrients well. (a). Sandy (b). Loamy (c). Clay
- __________ soil retains water while still allowing excess water to drain away. (a). Clay (b). Loamy (c). Sandy
- Loamy soil is a rich __________ soil used for planting. (a) dark (b) blue (c) yellow
- Loamy soil is an earthy mixture of __________ with organic matter to which its fertility is chiefly due (a) clay and sand (b) stone and mud (c) sand and cement
- __________ is made up of horse, goat, chicken, or cow manure. (a) Compost (b)Refuse (c) sewage
