Science Journal: 2014

Sunday, 21 September 2014

LESSON PLAN

Name of the teacher : Lekshmi.c.r Date :

Name of the school : G.M.H.S.S, Venjaramood Class : VIII

Subject : Chemistry Division : I

Lesson : Atoms and molecules No. of students : 52

Content : Atom , Element , Compounds Age : 13+

Time : 40’

CURRICULAR STATEMENT

Though experiment , observation , group discussion pupil will get an idea about atoms , elements , compounds and they recognize this term in a new situation.

CONTENT ANALYSIS

TERMS : Elements , atom , compounds.

FACTS : In a mixture , there are different types of molecules.

Water is a mixture of more than one constituent.

Salt water solution is a mixture.

The gold ornament is a mixture.

Pure gold is an pure substance.

CONCEPTS : The tiny constituents with which molecules are built are known as

atom.

If there is only one kind of atom in a molecule of substance , it is

an element.

Substance formed by the combination of atoms of different

elements are called compounds.

PREVIOUS KNOWLEDGE: There are different types of constituent present in mixtures.

PRE-REQUISITES : Test- tube , salt solution , mercuric oxide , sugar , matchstick , spirit lamp , chart , discussion card.

TEACHING LEARNING PROCESS: Learning by doing , Co-operative learning

FORMATIVE EVALUATION : Discussion , Questioning

REFERENCE : Textbook , Teacher’s handbook , Internet

LEARNING OUTCOME : To enable the pupil .....

OBJECTIVE	PROCESS	PRODUCT
	Pr₁ Pr₂ Pr₃ Pr₄ Pr₅	Pd₁ Pd₂ Pd₃ Pd₄
Remembering
Understanding
Applying
Analyzing
Evaluating
Creating
Factual
Conceptual
Procedural

Pr₁Remembering

Pr₂ Understanding

Pr₃ Applying

Pr₄ Analyzing

Pr₅Evaluating

Pd₁ Factual

Pd₂Conceptual

Pd₃ Procedural

Pd₄ Creative

Classroom interaction process

Expected response

Students , how do we make salt solution?

So what are the constituents of salt solution?

Is it possible to separate components of salt solution?

Yes , right by heating , it is possible to separate salt and water.

Which are the constituents of water?

Is it possible to separate them?

Teacher shows a picture in which constituents of water are separated.

Picture Presentation

What did you observe in the picture?

Yes , right. Sir , Henry Cavendish proved that water is a substance composed of more than one constituents. Sir Humphrey Davy confirmed this by passing electricity through water and thus proved that water consist of hydrogen and oxygen.

Now can we do another activity.

Take some sugar in a dry test tube. Place some anhydrous copper sulphate wrapped in cotton at the mouth of the test tube. Heat the test tube. Record the observation in your science diary.

DISCUSSION CARD

· Which are the constituents of sugar?

· What is the substance remaining in test tube?

· How does the colour of copper sulphate change?

SUMMARISATION

Sugar contain carbon , hydrogen and oxygen in it. Sugar looses its water on heating turns black and thus turns anhydrous copper sulphate into blue colour.

Now we can do another activity.

Take mercuric oxide in a test tube and heat it strongly show a glowing splinter at the mouth of test tube. Record you observation in science diary.

DISCUSSION CARD

· Which gas come out of the test tube?

· What are the constituents of mercuric oxide?

· Do the tiny constituents of molecules have the same properties as that of original substance?

SUMMARISATION

The glowing splinter burns fastly because the gas that came out of test tube was oxygen. The tiny shining drops sticking to the sides of test tube is mercury. The constituents of mercuric oxide are mercury and oxygen. The tiny constituents of molecule have different properties as that of original substance.

The tiny constituents with which molecules are built are called atoms. If there is only one kind of atoms in molecule of substance , it is an element. Substance formed by the combination of the atoms of different elements are compounds.

Teacher shows a chart to students containing definition of atom , element and compound.

Discussion lead by Teacher

So students , what have we learnt today?

Yes , right. Atoms combine to form element and different element form compound.

By adding salt to water.

Salt , water

Yes

Hydrogen , Oxygen

Yes

Electricity is being passed through water.

Atom , element , compound

BLACK BOARD SUMMARY

DATE CHEMISTRY Std:

DAY Str:

Atoms, Elements & compounds

Sugar

Mercuric oxide

FOLLOW- UP – ACTIVITY :

· What are atoms?

· What are elements?

· What are compounds?

· Which are the elements of water?

· Which are the elements of mercuric oxide?

ASSIGNMENT :

· Identify example from daily life which are compounds and write the elements present in them.

VIDEO ON LONGITUDINAL AND TRANSVERSE WAVES

VIDEO ON UNBALANCED FORCE

VIDEO ON BALANCED FORCE

E-Practicum

TECHNO-PEDAGOGIC CONTENT KNOWLEDGE ANALYSIS-PHYSICAL SCIENCE

E-practicum

SUBMITTED BY,

LEKSHMI.C.R

REG.NO.13983010

PHYSICAL SCIENCE

KUCTE,NDD

Introduction

Information technology is often used as an extended synonym for information technology, but is a more specific term that stresses the role of unified communicationand the integration of telecommunication computers as well as necessary enterprise, middleware storage, and audio-visual systems, which enable users to access, store, transmit, and manipulate information.

The term ICT is also used to refer to the convergence of audio-visual and telephone with computer networks through a single cabling or link system. There are large economic incentives to merge the telephone network with the computer network system using a single unified system of cabling, signal distribution and management

Students develop ICT capability as they learn to use ICT effectively and appropriately to access, create and communicate information and ideas, solve problems and work collaboratively in all learning areas at school, and in their lives beyond school. The capability involves students in learning to make the most of the digital technologies available to them, adapting to new ways of doing things as technologies evolve and limiting the risks to themselves and others in a digital environment. To participate in a knowledge-based economy and to be empowered within a technologically sophisticated society now and into the future, students need the knowledge, skills and confidence to make ICT work for them at school, at home, at work and in their communities.

Objectives

· The students should be able to describe the basic characteristics of forces.

· The students should be able to describe the nature of forces.

· The students should be able to identify and distinguish between the types of forces.

· To change the culture of the use of ICT.

· To improve the confidence in the use of ICT for learners, teachers etc.

· To promote new behaviours for teaching.

· To deepen parental engagement.

CONCEPT MAPPING

FORCES

Force is required to move an object from a state of rest.

Forces

SUMMARY

Content	Teacher Activity	Pupil Activity
Balanced Force	$Description: C:\Users\user\Desktop\slide0087_image018.jpg$ Have you seen the picture.Which force is applied the two people on the door? What happens when equal force is applied on the door?	Equal force The door remains stationary ,it does not move.

Unbalanced Force

$Description: C:\Users\user\Desktop\doors.jpg$

The two figure shows the different ways in which force is applied on a door.

· On which occasions does the door move? Why?

· On which occasion does the table remain stationary? Why?

Fig.b, there occurs unequal force.

Fig.a, there shows equal force

ORIGINAL TEXT SCANNED

FREQUENTLY ASKED QUESTIONS (FAQ)

1. When we applied ……………. the object can be displaced.

2. What happens, when two people standing on the same side pushing a table on the same direction.?

3. Two people push a table with equal force in the opposite direction is an example of ……………… force.

4. Two people push a table with different force in the opposite direction is an example of …………….. force.

5. …………. is required to move an object from a state of rest.

6. Force is required to …………… the speed of a moving object.

ANSWERS

1. Force

2. Displace

3. Balanced

4. Unbalanced

5. Force

6. Increase/ Decrease

VIDEO/ANIMATION/GRAPHICS

GRAPHICS

$Description: C:\Users\user\Desktop\tug_of_war.gif$ UNBALANCED FORCE

$Description: C:\Users\user\Desktop\Balanced Forces[2].jpg$ BALANCED FORCE

Video: http://www.youtube.com/watch?v=HEJOybRxclk

https://www.youtube.com/watch?v=bjxZ1JoPWl4

ASSIGNMENT

1. When the car moves in a particular direction , slowly increase the weight in the pan having less weight. Observe the speed of the car in each stage. What changes happen? Why?

· When does the car come to a rest?

· When does the car begin to move in the opposite direction?

· What can be the reason?

2. Examine whether your findings match with the statement given below.

· Force is required to move an object from state of rest.

· Force is required to change the direction of an object moving in a particular direction.

· Force is required to increase or decrease the speed of a moving object.

· To stop an object moving in a particular direction a force is to be applied in theopposite direction.

QUIZ

· What is the unit of force?

· What is the force when we have to support an object having 100g weight on our palm?

· Which force is applied when two people push a table in opposite direction?

· Lifts a bucket filled with water from a well is an example for which force?

· A cycle moves along a floor is an example for which force?

TUTORIAL

I. Find out from those given below , the situations in which balanced force and unbalanced force are experienced.

· Lifts a bucket filled with water from a well.

· Holds a bucket filled with water above the water level in the well.

· The tug does not move during a tug-of-war competition despite both teams pulling very strongly.

· A cycle moves along a floor.

REFERENCE

· Text book of VII

· Teachers handbook

· Everything.science.co.za

· Chemistry.about.com

· www.answers .com

· www.chem4kids.com

· Wiki.rscwmsystems.org

· En.wikipedia.org/wiki/mixture

GLOSSARY

https://www.google.co.in/search?newwindow=1&hl=en&site=imghp&tbm=isch&source=hp&biw=1366&bih=624&q=balance+unbalanced+forces&oq=balance+unbalanced+forces&gs_l=img.3...52767.62662.0.63079.27.18.0.9.2.0.183.2282.0j18.18.0....0...1ac.1.53.img..8.19.2167.8kSHEioXw_c

DOWNLOAD

http://www.youtube.com/watch?v=HEJOybRxclk

https://www.youtube.com/watch?v=bjxZ1JoPWl4

BLOG

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CONTACT

lechucrkujata@gmail.com