Lesson Notes By Weeks and Term - Junior Secondary School 3

TERM: 2ND TERM

SUBJECT: BUSINESS STUDIES

CLASS: JSS 3

WEEK SEVEN

TOPIC: ERASING TECHNIQUES

Content:

Rubber techniques with

1. Rubber eraser
2. Correction liquid.
3. Correction Paper
4. Erasing on the following:
5. Top Copy
6. Carbon Copy

Standard Paper Sizes and their Uses

ERASING TECHNIQUES

In typewriting work, errors and mistakes must be corrected. To produce accurate documents all errors must be neatly corrected. When errors are found in a typed work, the following materials can be used to erase the error:

1. Typing eraser
2. Correction fluid
3. Correction paper

Typing Eraser

If the typewriter eraser is being used, first move the carriage so that the mistake is outside the type basket. Then turn up the paper so that the error, or mistake rests on the erasing table of the carriage. Erase gently to avoid making a hole in the paper. Return the paper to the typing line and type the correct letter(s) or word(s) .

Rubber Eraser

If the rubber eraser is being used, lightly rub the mistake up and down until the mistake is cleared. Return the paper to the typing line and type the correct letter(s) or word(s).

Correction Fluid

Where the correcting fluid is being used, rub the tin liquid across the mistake, and allow to dry. After making the correction, return the roller to the line of typing and type in the correction. Tip-Ex is an example of correction liquid.

Correction Paper

This is mechanical paper treated with fluid and powder. To use it, place the coated part of the paper on the affected characters. Then type correction on the correction paper and remove the paper from the machine.

MATERIALS FOR ERASING INCLUDE:

1 Tipp-ex/ correcting fluid

2 Typing eraser

3 Automatic typing eraser

4 Red liquid fluid.

CORRECTION OF ERRORS ON THE COMPUTER

When an error is done on computer, making correction of such error is easy on the computer. The computer makes it easy to make correction to typed written work without interfering with the text or erasing the text. To add delete or add a letter or words(s), you move the cursor to certain points in a document without erasing the text it passes through.

In Microsoft Word, there are three methods through which corrections can be made:

1. By using the backspace key: This deletes the wrong letter or word(s) and the correct letter/word is then typed.
2. By using the insert key. Bring the cursor to the first letter of the wrong word, then press the insert key and type the correct word. The insert key is a toggle key; that is , when the key is pressed, it starts the action it is expected to do until it is pressed again to stop the action.
3. By moving the cursor to the position the omitted letter or word should occupy and simply type in the letter or word.

EVALUATION

1. Explain typing basket.

1. List three typewriting errors correcting materials

STANDARD PAPER SIZES AND THEIR USES

TOPICS:

In the office, various sizes and kinds of typing papers are in use. The most widely used is the A

series. The basic sizes, A0, is approximately one square metre (84-1189mm). A1 is exactly half

of A0. A2 is half of A1. A3 is half of A2. A4 is half of A3 while A5 is half half of A4. Paper can

either be placed in a portrait position or in a landscape position or in a landscape position. When

the shorter side of the paper is at the top, it is the portrait position. When the longer side of the

The standard paper sizes and their uses are shown in the diagram below.

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KINDS OF PAPER

SIZE

(In millimeters approx) No of Spaces USES

LENGTH

Width

Vertical

Horizontal pica

Elite

Foolscap

330

203

78

80

96

Table, reports, minutes and letters

A4 landscape

297

210

50

117

141

As above

A4 portrait

210

297

70

82

100

As above

A5 landscape

148

210

35

82

100

As above

A5 portrait

210

148

50

59

70

Programmes & invitations

A6

148

105

25

59

70

Post cards index cards, advertisement and envelopes

EVALUATION:

State the different sizes of paper used for typing

READING ASSIGNMENT

Read page 108 of BUSINESS STUDIES for JSS3 by O. A. LAWAL and others

GENERAL REVISION QUESTIONS

1. What is a trading account?
2. State five items that can be found in a trading account
3. Define a pro forma invoice.
4. Distinguish between a debit note and a credit note
5. What is a statement of account?

WEEKEND ASSIGNMENT

1. Which of the following method of correcting error is allowed to dry before correction is effected?
2. Rubber eraser B. correcting fluid C. Red ink D. Pencil eraser
3. ---------- is NOT a material for the correction of typewriting errors.
4. Red fluid B. Tipp-ex C. Rubber eraser D. Automatic typing eraser.

1. Which of these types of paper sizes can be used for long letters and report? D. A6 B. A4 C. A7

1. Quarto.

1. Which of these paper sizes is good for typing medium letters? A. Quarto B. A4 C. A5 D. A6.
2. Which of the following cannot lead to typing error? A. Sitting position of the typist B. Level of

training of the typist C. Quality of manuscript D. Brand of the typewriter.

THEORY

1. List three materials used for correcting errors in typing and explain how they are used.
2. Explain five approaches to preventing typing errors.
3. Draw out the following sizes of paper.
4. A4 Portrait
5. A5 Landscape