Parts of the Typewriter

 

THIRD TERM 

LEARNING NOTES

JSS 1

SUBJECT: BUSINESS STUDIES

CLASS: JSS 1 (BASIC 7)

SCHEME OF WORK

Subject : 

BUSINESS STUDIES

Term :

THIRD TERM 

Week:

WEEK 5

Class :

JSS 1 (BASIC 7)

Previous lesson : 

The pupils have previous knowledge of

Introduction to Keyboarding: (i) The meaning of keyboarding (ii) The importance of keyboarding (iii) Correct sitting posture for keyboarding.

Topic :

Parts of the Typewriter: (i) Meaning of typewriter. Typewriter parts. (ii) Uses of parts of the typewriter.

Behavioural objectives :

At the end of the lesson, the pupils should be able to

  • Demonstrate Correct sitting posture for keyboarding.
  • Say the uses of parts of the typewriter.
  • say the meaning of typewriter
     

 

Instructional Materials :

  • Wall charts
  • Pictures
  • Related Online Video
  • Flash Cards

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 :

Topic: Parts of the Typewriter

Content: (i) Meaning of typewriter.

(ii) Typewriter parts

(iii) Uses of parts of the typewriter

Sub-Topic 1: Meaning of typewriter: Typewriter parts

MEANING OF TYPEWRITER

This is equipment that has revolutionized business procedures by making documentation of facts and data easy. It has also offered employment to millions of people throughout the world.

The typewriter is a machine which prints letters on a piece of paper when the keys are depressed. The machine is operated by means of keyboard and this produces characters similar to those used in printing. Its operation requires movement of the fingers and hands.

PARTS OF THE TYPEWRITER

  1. Carriage
  2. carriage release lever
  3. Carriage scale
  4. Carriage return or line space lever
  5. Back spacer
  6. Feed rollers
  7. Paper grips
  8. Paper bail
  9. platen/cylinder
  10. Platen knobs
  11. Paper guide
  12. Margin sets or stop
  13. Margin release key
  14. Line space selector
  15. Printing point
  16. Ribbon switch
  17. Keyboard
  18. Space bar
  19. shift keys
  20. Shift lock
  21. Bell warning

PARTS OF TYPEWRITER AND THEIR USES

Carriage: This is the upper part of the machine that can move freely from left to right when the key or space bar is depressed or touched.

Carriage release lever: It allows the carriage to be moved freely to the left and right margins when depressed.

Carriage scale: This serves as a guide in setting the left and right margins .It is graduated in scale.

Carriage returns or line space lever: It is used for turning up the paper and also for returning the carriage to the right in order to begin a new line.

Back Space: This moves the carriage backwards, one space at a time. It is also used in calculating in display work or used when you want to type over a lightly struck letter.

Feed rollers: It is a small rubber that is underneath and behind the platen to grip and hold the paper in position.

Paper grips: They are moveable rubbers on the paper bail. They hold the edges of the paper firmly against the platen. Before any typing work begins they should be set to the required position.

Paper bail: This is a device on the carriage that is used to clamp the top part of the paper to the cylinder. It is moveable, marked with typing scale on which the paper grips are mounted.

Platen/Cylinder: The platen or cylinder is a cylindrical roller on the carriage. It holds the paper in position and when the knob is turned, paper can be inserted or removed from the typewriter.

Platen knobs: This is used for turning the paper into position. It is situated at each end of the platen.

Paper guide: This guide is used to adjust the left edge of the typing paper. If the paper guide is kept constant, the subsequent typing papers will have the same margin.

Margin sets or stops: The margin sets are used to fix the points at which the lines of the typewriter begin on the left and on the right. It should be noted that the typewriter keyboard will lock as soon as the carriage moves four (4) or six (6) characters spaces after the bell has rung. The bell is a warning guide towards the end of the right margin.

Margin Release-key: This is used to move the carriage beyond margin stops.

Line space selector: This is the lever that is used to select the number of line spaces to be used while typing. It is marked 1,2,and3. It regulates the spacing between the typing lines.

Printing point : This is where the characters moves up to strike and print on the paper. It is V-shaped.

Ribbon switch: There are three positions

(a) using the top edge of the ribbon

(b) Using the lower half of the ribbon

(c) Disengaging the ribbon for cutting of stencil.

Keyboard: This is the frontal part of the typewriter that contains all the alphabets, numbers and the symbol keys. The alphabets and numbers we type in are done by depressing the keys of the keyboard.

Space bar: This is used to give spaces between words or characters.

Shift keys: They are used to change of the keys so that capital letters or lower case characters can be typed. The shift keys are two. They are placed on each side of the keyboard.

Shift lock: This locks the typewriter keys for continuous typing of the upper case character or capitals. It is released by depressing the left or right shift keys.

Bell warning: The bell is a warning guide towards the end of the right margin. The bell rings four to six spaces before the end of a line.

 

 

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

 

Class Discussion

Teacher and Students Interactions 

Teacher : What is  keyboard

Student :

Teacher :Mention the types of keyboard that you know

Student :

Teacher : What are the home keys

Student :

Teacher :What are the letters that make up the home keys

Student :

Teacher :What are the other functions of the keyboard

Student :

Teacher : State the other function that the interactive  keyboard cam be used for

Student :

Pupils Activities 

Let the student come with a laptop for practical or more preferably they can go and do the practical in the computer room

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:

  1. Define keyboarding.
  2. List three importance of keyboarding.
  3. List the home keys.
  4. List and briefly explain three guidelines to consider in a correct keyboarding posture.

 

 

 

 

 

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