toursimsa.files.wordpress.com · Web viewUsed to measure the external and the internal diameter and depth measurement. 2.Dial caliper: ... Close jaws against work and lock right-hand

Unit: TRTS-1 / AVP-2 27.02.2013

Department: Vocational Pedagogy Subject: Measurements

Table of contents

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PageNO.

1- Curriculum analysis 2

1.1 general objective 2

1.2 behavioral objective 2

1.3 content 2

2- content analysis 3

2.1 32.2 kinds of used calipers 32.3 direction of the caliper 5

2.4 PARTS of VERNIER CALIPERS 6

2.5 Measuring a Workpiece 6

3- didactic analysis8

4- lesson plan9

5- media 12

5.1 power point 12

5.2 white board 16

5.3 handout 17

5.4 worksheet 19

Unit: TRTS-1 / AVP-2 27.02.2013


l. General information:

Subject: Measurements.

Name: Abdulkhaliq (169) and Abdulaziz (157).

Date: 27/02/2013

1. Curriculum analysis: Calipers used to measure the pieces of work, which is part of the science measurements. Measurements part of the quality system of industrial products like as mechanical and electrical industries ..Product quality consumer-oriented classified according to standard specifications like as shape, dimensions and surface quality.

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Unit: TRTS-1 / AVP-2 27.02.2013


1.1 General objective of the course :give the trainees the basic skills in measuring dimensions of the manufactured products.

1.2 Behavioral objective :the trainees should be able to: know about different types of measuring. Use the calipers. Read the number from the caliper. Types of calipers. know about different between the types of caliper.

1.3 Content : Introduction. Method uses Vernier caliper. Vernier caliper components. Read measuring Vernier caliper.

2. content analysis:

1.In operation the technical checks of conformity the dimensions of the work piece with the design specifications such as shape, dimensions or quality surfaces by conducting measurements on these properties. The quality of industrial products requiring manufacturing mechanical parts with high accuracy exceeding accuracy of the iron ruler, for this precise measurements require the use of more accurate devices such as submitted in Vernier and micrometer.

2.2 There are many kinds of calipers to measure the dimensions of work pieces in workshops :

1.Vernier caliper:

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Unit: TRTS-1 / AVP-2 27.02.2013


Used to measure the external and the internal diameter and depth measurement.

2.Dial caliper:

the dial caliper reads the final fraction of a millimeter or inch on a simple dial.

http://www.silencertalk.com/forum/viewtopic.php?f=2&t=60810&start=75

http://www.ehow.com/how_6608528_use-non_digital-caliper.html

3.Digital caliper:

is the replacement of the analog dial with an electronic digital display on which the reading is displayed as a single value.

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http://www.phy.uct.ac.za/courses/c1lab/vernier1.html

Unit: TRTS-1 / AVP-2 27.02.2013


4. Depth Caliper:

we have three type of depth caliper ( Vernier depth caliper and Dial depth caliper and Digital depth caliper )

5.Height Caliper:

Like the vernier caliper, the caliper height gage consists of a stationary bar or beam and a movable slide.

http://en.wikipedia.org/wiki/Caliper

http://www.amazon.com/Mitutoyo-571-201-20-ABSOLUTE-Digimatic-Graduation/dp/B003MUSBAG

http://www.auto-maintenance.net/height-calipersrange01500mmresolution002mm_p15.html

2.3. direction of the caliper :

Used in workshops to process of measurements external and internal dimensions and depths of holes in the work pieces

1-External Measurements 2-Internal Measurements 3-Depths Measurements

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http://www.auto-maintenance.net/height-calipersrange01500mmresolution002mm_p15.html

http://www.amazon.com/Mitutoyo-571-201-20-ABSOLUTE-Digimatic-Graduation/dp/B003MUSBAG

Unit: TRTS-1 / AVP-2 27.02.2013


A Vernier calipers is a device used to measure the distance between two opposite sides of an object.

The VERNIER CALIPERS is most important instrumentation used in mechanics workshops and operating workshops to measure the work piece or object .

http://scienceportfolio1i3.blogspot.com/p/practicals-6-to-10.html

http://www.digitalmicrometers.co.uk/caliper-300mm-ip67.php


2.4 Parts of Vernier Calipers :

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http://scienceportfolio1i3.blogspot.com/p/practicals-6-to-10.html

http://en.wikipedia.org/wiki/Measurement

Unit: TRTS-1 / AVP-2 27.02.2013


1. Outside jaws: used to measure external diameter or width of an object2. Inside jaws: used to measure internal diameter of an object3. Depth probe: used to measure depths of an object or a hole4. Main scale: scale marked every mm5. Main scale: scale marked in inches and fractions6. Vernier scale gives interpolated measurements to 0.1 mm or better7. Vernier scale gives interpolated measurements in fractions of an inch8. Retainer: used to block movable part to allow the easy transferring of a

measurement

Two parts :

1- Fixed part: has fixed jaw connect to main scale .the main scale has two way to read it in mm and inch , we use only mm .

2- Movable part: has movable jaw and vernir scale .

2.5 Uses of Vernier caliper and how to Measuring a Workpiece and read the number correctly :

• Remove all burrs from workpiece

• Clean surface to be measured

• Open jaws enough to pass over work

• Close jaws against work and lock right-hand clamp screw

• Turn adjusting screw until jaws just touch work surface

• Lock clamp screw on movable jaw

• Read measurement

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Unit: TRTS-1 / AVP-2 27.02.2013


For example about how to read:

Accuracy of tool =0.02mm.

Value measurement =0.36mm.

0.3+0.06=0.36

Didactic analysis:

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http://www.phy.uct.ac.za/courses/c1lab/vernier1.html

Unit: TRTS-1 / AVP-2 27.02.2013


In the opining of lesson I start with show the student different types of measuring tools: steel rule, caliper and micrometer and ask them what these tools for to guess what my subject and I get the answer from the student and I will write it on the white board after that I talk about it and I will ask the student why to use these tool.

In body of lesson I will explain the caliper because it they must tool we use it. And I will show them different kinds of caliper to see that and to know how to develop of this caliper. I will show them how to use in the correct way and explain to them what the different between the kinds of caliper after I ask them about the different.

In body of lesson I explain to the student how to caliper read the number in a correct way and I will make 3- group and let each student works alone and I will give them the work sheet to see if know the way of reading and I will show the student the correct answer by using projector. I want from the group before show them the answer to change his worksheet with other in the seam group, so that why I make the group.

In the body of lesson I will gives to each group one part with different kinds of a caliper's I want from the student measure the part and from each group I will choose one student write the answer on the white board. And see what is the different between these results by asking the students. Students try to find the different between the kinds of caliper.

In the close of lesson I will ask the student to see if the understanding the subject for e.g.

1-how want tall me what is the measuring?

2- What are the different kinds of measuring tools?

3-describe how to use and how to read the number of caliper?

4-what is the different kind of caliper?

4- lesson plan :

I. General Information:

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Unit: TRTS-1 / AVP-2 27.02.2013


o Subject: measurement

o Name: Abdul-Aziz(157) & Abdul-Khaliq(169).

o Date: 04/03/2013

II. Objectives:

General Objectives

(The Trainees)

o Ask questions about the topic.

o Finish their task on time.

o Write notes.

o Create nice work atmosphere.

Specific Learning objectives:

(The Trainees)

o Define the measuring. (Reproduction)

o Name the different kinds of measuring tools. (Reproduction)

o Describe how to use the caliper and how to read the number of caliper. (Reorganization)

o Name the different kinds of caliper. (Reproduction)

III. Overview of the Intended Process

Opening / Entrance / MotivationMethodology Media

Time

Expected Trainer-action Expected Trainee-action Minutes

Trainers show the student different types of measuring tools and ask them what these tool for to guess what me subject.

Trainers ask the student why to use these tools.

Students listen, answer and think of it . Classroom conversation

tools

Whiteboard

Power point

Slide 1&2

4

Body (Information / Elaboration) Methodology Media Time


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Unit: TRTS-1 / AVP-2 27.02.2013


Trainer explains the caliper and names the parts of the caliper.

Trainer explains how to use the caliper in the correct way.

Trainers show to the student different type of caliper and ask them what is the different.

Student listen and focus about how to read, how to use and should be know what is the different between the kinds of caliper.

Classroom

Conversation

Projector.

tools .

Handout .P17

Slide 3 to 11.

P12

13

Trainers explain to the student how to read the number in a correct way and I will make 3- group and let each student works alone and I will give them the worksheet to see if know the way of reading.

Student should be focus how to read, also should be answer the worksheet.

individual

White board

Calipers

Worksheet.P1914

Trainers will show and explain to the student the correct answer . Student correct the answer to each other

by see the correct answer on the projector.

Classroom

Conversation

Worksheet.P19

Projector

Slide: 11&12&13&14 P14and15

6

Trainer gives to each group one part with different tools.

Students measure the part and give the teacher them rustle.

Group work

Parts

Calipers

6

Trainers choose one student from each group to write the result on the white board.

And ask what is the different between these tools.

Student write the answer.Conversation

White board.P16 4

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Unit: TRTS-1 / AVP-2 27.02.2013


Close/Securing the Learning Process (Homework, Feedback, questions, summary, conclusion, etc.)

Methodology

MediaTime


Trainer give the student these question about the subject :-

1-Who told me what is the measuring?

2- What are the different kinds of measuring tools?

3-describe how to use and how to read the number of caliper?

4-what is the different kinds of caliper?

To see if the student understand.

Answer the question and see If the student have question about the topic.

Classroom

Conversation

Projector

Slide 15&16&17

P15

6

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Unit: TRTS-1 / AVP-2 27.02.2013


5.1 power point

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5.2 white board

Topic date

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The teacher write the answer

drawing for the caliper Answer The worksheet

The studentWrite the answer

Unit: TRTS-1 / AVP-2 27.02.2013


5.3 handout

There are many kinds of used calipers to measure the dimensions of work pieces in workshops :

1.Vernier caliper.

2.Dial caliper.

3.Digital caliper.

4. Depth Caliper.

5.Height Caliper.

Direction of the caliper : Used in workshops to process of measurements external and internal dimensions and depths of holes in the work pieces

1-External Measurements 2-Internal Measurements 3-Depths Measurements

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Unit: TRTS-1 / AVP-2 27.02.2013


A Vernier

Calipers is a device used to measure the distance between two opposite sides of an object.

Parts of Vernier Calipers :

1- Fixed part: has fixed jaw connect to main scale .the main scale has two way to read it in mm and inch , we use only mm .

2- Movable part: has movable jaw and vernir scale .

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http://en.wikipedia.org/wiki/Measurement

Unit: TRTS-1 / AVP-2 27.02.2013


The correct way to use the caliper:

- clean the jaws.

- close the jaws and make sure the vernier scale in the 0.

- make sure the jaws don’t have any space in the between.

- Some time the head of the jaws are broken.

============================

5.4 Worksheet:

1)Write the accuracy of the caliper and value measurement ? ( individual work!!! )

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Unit: TRTS-1 / AVP-2 27.02.2013


Value measurement =…………………………….

Value measurement =……………………………

Value measurement =…………………………

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Unit: TRTS-1 / AVP-2 27.02.2013


2.write the three dimensions of calipers ?

1- .

2- .

3- .

Name:

Mark:6

.

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toursimsa.files.wordpress.com · Web viewUsed to measure the external and the internal diameter and depth measurement. 2.Dial caliper: ... Close jaws against work and lock right-hand

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