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Blood pressure from indumeerashami

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ASSIGNMENT SIGNIFICANCE AND ORGANIZATION OF SCIENCE LABORATORY 10/09/2015 Reg no:18114303012 INDU P.BALACHANDRAN

INTRODUCTION

The laboratory is central to science instruction. It is in the laboratory that the students lean more to handle apparatus, think independently and to draw conclusions on the basis of experiments. Laboratory work is an essential component of science education. Scientific theories and practical work in science are the two sides of a coin. These two aspects of science education should supplement and complement each other. 

CONTENT

Without experiments the students cannot experience the reality of science. Practical work provides an activity which can be profitable and emotionally satisfying. The developments of power of observation, measurement, drawing inference are all dependent on laboratory work. Laboratory work helps to realize the process oriented objectives of science teaching. The following are the educational significance of laboratory work

Ø Making abstract scientific understanding concrete.

Ø Development of scientific concepts and principles.

Ø Training in scientific method.

Ø Awakening the maintenance of curiosity in the environment.

Administration of Laboratory Work

In order to make the practical work most effective, the science teacher should always keep in mind the different aspects of laboratory works.

1.   Organizing and conducting practical work.

Ø There should be co-ordination of theoretical and practical work

Ø Experiments should neither be too difficult nor too easy

Ø A faithful record of the experiment should be maintained by pupils

Ø Pupils work should be observed by the teacher

2.   Students should be made to form appropriate groups.

3.   Preparation is required for individual and group working.

4.   Laboratory rules and discipline should be laid down.

5.   Instructions to pupils are to be specific and clear.

6.   Pupils’ records and observation book are to be properly maintained.

Features of a Good Science Laboratory

1.   A good science laboratory should satisfy most of the following characteristics.

·       It must be spacious-Linear bench space, circulation space, storage space, wall space, demonstration space etc.

·       It must be quit conducive for hard work.

·       Its plan must provide elements of flexibility for effective teacher demonstration as well as for individual and group work.

·       It must provide certain facilities for objectification.

·       It must have water, gas and electric points wherever they are needed.

·       It must have ample storage space for equipment.

·       It must have emergency exit if it is not situated on ground floor.

Selection and Purchase of Apparatus and Chemicals

While making a list of requirements, the teacher should consider the following factors

·       Type of the apparatus required

·       Quality of each item.

·       Choice of suppliers.

·       The number of students taught.

·       The number of the laboratory.

·       The capacity of laboratory.

·       The knowledge and ability of the teacher.

Registers maintained in the Laboratory

A.  Permanent stock register

B.   Stock register of breakables

C.   Stock register of consumables

D.  Order register

E.   Requirement register

Laboratory Rules and Discipline

The followings are some suggestions or rule for the maintenance of discipline in the laboratory

v No pupil should be allowed to enter the laboratory in the absence of teacher

v Every student should have a place assigned to him for his experiments.

v Pupil should perform those experiment assigned by the teacher.

v Specimens, solid waste, broken glass, burnt up match stick and other laboratory wastes should be deposited in waste box

v No equipment/chemicals should be used until proper instructions are received from the teacher.

CONCLUSION

The laboratory is the central to science instruction. Laboratory work is an essential component of science education. Without the laboratory work one’s science study do not complete. Because in the classrooms pupil only learn the theory part. The student becomes a knowledgeful individual he know the practical aspect behind it. So laboratory is an essential part of science.

REFERENCE

v   Science Education by Dr.Sivarajan and Prof.A. Faziluddin

v   Teaching Science by Dr.Mariamma Mathew 

EPICULTURE

Beekeeping (or apiculture, from Latin: apis "bee") is the maintenance of honey bee colonies, commonly in hives, by humans. Abeekeeper (or apiarist) keeps bees in order to collect their honey and other products that the hive produces (including beeswax,propolis, pollen, and royal jelly), to pollinate crops, or to produce bees for sale to other beekeepers. A location where bees are kept is called an apiary or "bee yard".

Depictions of humans collecting honey from wild bees date to 15,000 years ago; efforts to domesticate them are shown in Egyptian art around 4,500 years ago. Simple hives and smoke were used and honey was stored in jars, some of which were found in the tombs of pharaohs such as Tutankhamun. It wasn't until the 18th century that European understanding of the colonies and biology of bees allowed the construction of the moveable comb hive so that honey could be harvested without destroying the entire colony.

Biotechnology

Biotechnology is a broad discipline in which biological processes, organisms, cells or cellular components are exploited to develop new technologies. New tools and products developed by biotechnologists are useful in research, agriculture, industry and the clinic.