Topic:

Science lab-Importance and its organization, Register-purchase and maintenance of chemicals.

Paper: Edu 10.08 TECHNO-PEDAGOGIC CONTENT KNOWLEDGE ANALYSIS-PHYSICAL SCIENCE

ASSIGNMENT

Submitted to, Submitted by,

Smitha miss Shemeera.S

Lecture in Physical Science

Physical science FMTC, Mylapure.

Submitted on,

10-08-2015

INDE x

Sl.No. Content Page.No

1 Introduction 4

2 Importance and its organization 5-6

3 Register 7-8

4 Purchase and maintenance of chemical 9

5 Conclusion 10

6 Reference 11

INTRODUCTION

Science is a practical subject teaching of which cannot be close properly

only in theory form. For proper education of science it is necessary to conduct

various kind of experimental works. Which are practical in nature.These practical

function cannot be carry out in absence of scientific apparatus and equipment’s.

The place where various kinds of scientific apparatus and equipment’s are

arranged in systematic manner is called science laboratory.

Science laboratory is central to scientific instructions and it forms essential

component of science education. It is in this place that various kinds of practical

work are carryout by the students. Without proper and well equipped science

laboratory it is not possible to carry out the science teaching process effectively in

any school or educational institution.

Importance and its organization

The laboratory in central to science instruction. It is in the laboratory that the students learn to handle apparatuses think independly and to draw conclusions on the basis of experiment and observation. Laboratory work in an essential component of science education students can be stuffed with facts and theories but without experiments they cannot experience the reality of physics or chemistry as a science. The developments of power of observation Measurement, inference are all dependent on laboratory work.

The management tasks faced by the head of a school are manifold. In pursing the objectives for the school the head has to make the best use of available authority for the various subject areas to the appropriate heads of departments while retaining final responsibility. The head of a science department has similar management functions as the head of the school though on a determent has similar management functions as the head of the school thought on a different scale. Evidently the major decisions affecting science curriculum in school. The overall aim of the head of a science department should be development of a stimulating and interesting environment in which pupils, science staff and ancillary staff can work with initiative towards appropriate goats.

The tasks of organization and administrations within a science department are likely to be more effectively carried out if the following points are kept in mind.

Time table

1. Compitation of school timetable :- It is essential that the special requirements of science with particular regard to laboratories time tabing and use of double or triple periods are made known and are stated explicity

2. Display of time tables:- The copies of the complete school timetable the laboratorel timetables and timetables of all science teachers should be displayed on a large pin boards for easy reference. This will help the head of the department to have a complete picture of staff commitments thus facilitating substitution alterations in laboratory timetables.

Notice board

A notice board should be fixed outside the science laboratory with up to date information. This should contain science laboratories timetables a list of laboratory rules the experiments in each cycle notice from examination board, public, public examination timetables.

Storage system

A well-organized storage system enables easy collections of apparatus from the store and its transfer generally by trolley to the laboratory in readiness for the lesson.

Factors to be considered in planning the location and design of preparation and storage facilities require a careful analysis of the facilities available in the school. Also the age range of the pupils the degree of emphasis our teaching science the degree to which pupil are encouraged in independent learning activities and the selection of apparatus.

Register

After the receipt of the apparatus the articles should be properly checked and entered in the stock register. A proper record of the science apparatus is very important to check any article at any time also facilitates in giving concrete answers to management during circuiting

The types of registers which a science department can maintains are

1. Permanent stock Register:-

In this register articles of metal wood or of permanent nature. Which are not liable to be broken or consumed are to be entered.

Eg:- Test tube racks, wooden stands, magnets, microscope, Telescope, spectro meter, working and still models.

Specimen of permanent stock Register

Month and date

Particulars Details of company Rate (unit price)

Quantity Signature of Teacher

2. Stock Register of breakable:-

Articles of glass ware like flask, beaker, funnel,buret etc. which are liable to be broken are included in this Register

Specimen of stock Register of breakables

Month& Date

Particulars Receipt Details of broken items

How the breakage took place

Balance Signature of teacher

Quantity

Rate Quantity Date

3. Stock Register of Consumables:-

Chemicals and other fluids which are liable to be consumed are entered in this register.

Specimen of stock Register of consumable

Month & Date

Particulars Receipt Details of consumed items

Balance Remarks &Signaure of teacher

Quantity Rate Amount Quantity Date

4. Order Register:-

The order register includes a record of orders sent for the purchase of apparatus and chemicals. The entries should include serial number and date of order name of the firm the item ordered, cost of each items.

5. Requirement Register:-

In the requirement register the teacher should note down the requirements which he numbers at timed and which he feels necessary during the experiments.

All pages of the stock register should be numbered. Entries should be made in alphabetical order.

Purchase and maintenance of chemicals:-

After a list of selected items has been prepared its copy is sent to three or four firms and quotations obtained. It is always desirable to write the name of the item quality size and quantity in separate columns on receipt of quotations order should be placed to the firm which supplies better equipment of cheaper rates local dealers should be preferred. It possible the teacher should go personally to the firm and get the things packed in his presence. On receiving the goods the teacher should check with the list before signing their receipt. Any broken or5 damaged items incorrect quantities or wrong goods supplied must be immediately unformed to the dealers. The items received should be entered in the school registers on the same day.

The chemical on the shelves in the cupboards should be grouped in a systematic manner. The commons chemicals should be arranged in such a manner that all the compounds of one element are placed together. The elements are oftenaround in alphabetical order. An alternative method is to arrange the elements and their compounds in the order in which they occur in the group of the periodic table. A third method is to group all the elements oxides sulphates citrates and other similar compounds together.

Whichever method is used it is an advantage to number each bottle or jar and to have an under book so that any substance can be located at a moment’s notice. the bottle must be replenished periodically. All lables should be brushed over with melted paraffin wax in order to avoid fading and prevent deterioration and to ensure permanent adhesion

Conclusion

Laboratory work in an essential component of science education scientific theories and practical work in science are the two sides of coin. Three two aspects of science education should supplement and complement each other without experiment the students cannot experience the reality of science practical work provides an activity which can be profitable and emotionally satisfying. The development of powers of observation, measurement, drawing inference are all dependent on laboratory work

Reference

Innovative Science teaching; Radha Mohan Science Education ; Methodology and pedagogic content Analysis;

Dr. K. Sivarajan. Science Education Theoretical Base of Teaching and pedagogic

Analysis; Dr. Mathew and Dr. Molly Kutty. T (2013)

Corrected by

Smitha I G

Asst. Prof. in Physical Science