XPINO SCHOLARS
LESSON PLAN
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WEEK : 4
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TERM : 1
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SESSION : 2017/2018
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SUBJECT: Basic Technology
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TOPIC:
IDENTIFICATION OF WOOD
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CLASS: JS1
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DATE: 09/10/17 – 13/10/17
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LESSON PERIOD: 1 - 2
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Learning Objectives: At the end of the lesson, the
students should be able to:
1.
say what wood is, and state from
what source we get wood;
2.
differentiate between softwood and
hardwood;
3.
mention the major parts of a tree;
4.
draw the cross section of a tree
and label it correctly;
5.
describe each part of the cross
section of a tree;
6.
define wood processing;
7.
define wood conversion;
8.
define wood seasoning and describe
the two major types of seasoning;
9.
outline reasons why wood seasoning
is recommendable;
10. calculate
of the moisture content of wood;
Study Questions:
1.
What is wood?
2.
What is the main source of wood?
3.
What are 6 distinctive differences
between softwood and hardwood?
4.
What are the major parts of a
tree?
5.
How can the cross section of a
tree be drawn and label it correctly?
6.
What are the parts of the cross
section of a tree?
7.
What is wood processing?
8.
What is wood conversion?
9.
What is wood seasoning?
10.
What are the two major types of
seasoning?
11.
Why is wood seasoning
recommendable?
12.
How can you calculate the Moisture
Content of a piece of timber that weighed 120kg before drying and 100kg after
drying?
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Key words:
·
Wood
·
Timber
·
Cross
section
·
Wood
processing
·
Wood
conversion
·
Wood
seasoning
·
Moisture
content
·
Preservatives
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Instructional Materials:
1.
Specimen
of various types of wood.
2.
Pictures
of some timber woods.
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Previous learning:
The
students can identify trees by means of diagrams and they can mention names
of popular furniture construction materials
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Learning Activities in steps:
Step 1 – Teacher reviews previous
lesson, and states learning objectives – including study questions.
Teacher
guides the students to identify wood and the source of wood. Then, the
teacher engages the students in discussion of Learning Objectives 1 – 3.
(Teacher makes good use of the instructional materials).
Step 2 – Teacher
guides the students to draw and label the cross section of a tree. Class
discussion on each part of the cross section of a tree.
Class
Activity:
Describe the following parts of the cross section of a tree:
a.
The
cambium layer:
b.
Sapwood:
c.
Heart
wood:
Step 3 – Class
discussion on wood processing and wood conversion.
Wood
Processing:- Wood can be fell from two different areas,
which are the free area and the forest reserved area. The wood
can be transported to the sawmill through lorries, river or rail.
Wood
Conversion
is the cutting of splitting of wood into marketable sizes.
Step 4 – Teacher
discusses ‘study questions 7 and 8’ with the students.
Step
5 – Class
discussion on how to Calculate of the Moisture Content of a piece of timber.
Teacher gives the students series of relevant questions as Exercises from the
textbook
Calculation of the Moisture Content of
wood
The
moisture content of the timber can be calculated using the formular:
Moisture
Content (M.C) = (weight of wet wood – weight of dry wood) x
100
Weight of dry wood
Example: A piece of
timber weighed 120kg before drying and 100kg after drying. Find the moisture
content of the timber.
Solution:
Wet
Wood = 120kg
Dry
Wood =
100kg
M.C.
=(weight of wet wood – weight of dry wood)
x 100
Weight of dry wood
M.C.=
(120 – 100) x 100
100 1
M.C.
= 20%
Step 6 –Teacher
summarizes and evaluates lesson.
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Learning
Timing:
10
minutes
16
minutes
16
minutes
16
minutes
16
minutes
10
minutes
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Differentiation:
Level
1: students that should be able to achieve 80 – 100 %
Level
2: students that should be able to
achieve 60 – 79 %
Level
3: students that should be able to
achieve 50 – 59 %.
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Resources:
·
Introductory Technology for Schools and
Colleges. Book 1. Evans, pg. 3 – 7
·
Fundamental in Basic Technology for Jnr. Sec.
Schools Basic 7. Idowu O.C.J.
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Evaluation:
1.
What is
wood?
2.
What is
the main source of wood?
3.
What are
6 distinctive differences between softwood and hardwood?
4.
What are
the major parts of a tree?
5.
How can
the cross section of a tree be drawn and label it correctly?
6.
What are
the parts of the cross section of a tree?
7.
What is
wood processing?
8.
What is
wood conversion?
9.
What is
wood seasoning?
10.
What are
the two major types of seasoning?
11.
Why is
wood seasoning recommendable?
12.
How can
you calculate the Moisture Content of a piece of timber that weighed 120kg
before drying and 100kg after drying?
13.
Define
wood processing
14. Define
wood conversion
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Key Skills:
Listening
skill
Critical
thinking skill
Researching
skill
Problem
solving skill
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Assignment
Mention 5 wood products.
List 5 uses of wood.
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Name of Subject Teacher:
_____________________
Signature: ____________________________________
Head of Department:
______________________
Signature: ____________________________________
XPINO SCHOLARS
LESSON PLAN
|
|||||
WEEK : 4
|
TERM : 1
|
SESSION : 2017/2018
|
|||
SUBJECT: Basic Technology
|
TOPIC:
Identification of Wood
|
||||
CLASS: JS1
|
DATE: 16/10/17 – 20/10/17
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LESSON PERIOD: 3
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Learning Objectives: At the end of the lesson, the
students should be able to:
Say what
wood preservation is
Outline
methods of applying preservatives
List types
of preservatives and itemize the properties of a good preservative
Mention 5
wood product
Study Questions:
What is
wood preservation?
Outline
methods of applying preservatives
List types
of preservatives and itemize the properties of a good preservative
Mention 5
wood product
|
Key words:
·
Wood
·
Timber
·
Wood seasoning
·
Moisture content
·
Preservatives
|
||||
INSTRUCTIONAL MATERIALS:
1.
Specimen
of various types of wood.
2.
Pictures
of some timber woods.
|
|||||
Previous learning:
The
students can identify trees by means of diagrams and they can mention names
of popular furniture construction materials.
|
|||||
Learning Activities in steps:
Step 1 – Teacher reviews previous
lesson, and states learning objectives – including study questions.
Step 2 – Class
discussion on wood preservation. Teacher should extensively use the
instructional materials when discussing with the students.
Wood Preservation
is a process of treating wood with chemicals called preservatives to prevent
insects’ attack and therefore prolong the service life of the wood.
Methods
off Applying Preservatives;
1.
By
using brush
2.
By
using pressure treatment
3.
By
spraying
4.
By
dipping
Step 3 – Class
discussion on types of preservatives:
Types
of preservatives:
1.
Tar
oils
2.
Water
borne
3.
Solvent
type
Step
4 –
Teacher gives the students class exercise
Step 5 – Teacher
summarizes and evaluates lesson.
|
Learning
Timing:
5
minutes
10
minutes
10
minutes
10
minutes
5
minutes
|
||||
Differentiation:
Level
1: students that should be able to achieve 80 – 100 %
Level
2: students that should be able to
achieve 60 – 79 %
Level
3: students that should be able to
achieve 50 – 59 %.
|
Resources:
·
Introductory Technology for Schools and
Colleges. Book 1. Evans, pg. 3
·
Fundamental in Basic Technology for Jnr. Sec.
Schools Basic 7. Idowu O.C.J.
|
|
Evaluation:
Class
Exercise:
A
piece of timber weighed 88kg before drying and 70kg after drying. Find the
moisture content of the timber.
Mention 10 uses of wood.
Mention 5 properties of a
good preservative
Mention 5 wood products
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Key Skills:
Listening
skill
Critical
thinking skill
Researching
skill
Problem
solving skill
|
|
Assignment
What is metal?
Mention 5 properties of metal
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Name of Subject
Teacher: _____________________
Signature:
____________________________________
Head of Department: ______________________
Signature: ____________________________________
Author: Precious Ikpoza
Xpino SCHOLARS is a work tool for teachers and students, but especially for Secondary School Students. Comprehensive lesson notes, with exercises. Past questions in specific subjects for revision and research.
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