8/10/2019 5.3 (a) Covalent Bond Meaning

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Form : 4 Alpha

Time : 8.10-9.30

Number of Student : 28

Theme : atter around u!

"earnin# Area : $.0 %hemi&al 'ond!"earnin# (b)e&ti*e : $.3 S+nthe!i,in# idea! on formation of &o*alent bond

"earnin# (ut&ome! :5.3 (a) A student is able to:

State the meaning of covalent bond

Explain formation of covalent bond

Illustrate formation of a covalent bond b dra!ing electron arrangement

rior no/led#e :Students alread "no! about :#

Students alread "no! the electron valence of the atoms.

$he "no! the formation of ionic bonds.

$he "no! the nonmetal and metal

(b)e&ti*e! :At the end of the lesson% students should be able to:

A. &ontent "no!ledge

i) 'efine the meaning of covalent bondii) Explain the formation of single bond% double bond and triple bond

iii) 'ra! electron arrangement based on formation of covalent bond

. Scientific S"ills

i) redicting the outcome of a future based on prior "no!ledge.ii) &ommunicating using models to describe an action% ob*ect or event.

&. Scientific Attitudes and +oble values.

i) ,aving an interest and curiosit to!ards the environment

ii) -ealiing that science is a means to understand natureiii) $hin" creative and analtical !hile doing activit.

iv) eing cooperative !hile doing the activit.

8/10/2019 5.3 (a) Covalent Bond Meaning

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$EA&,I+/ A+' 0EA-+I+/ 1I$S

in &ardboard 2ar"er Envelope

Atom 2anila board

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S$ES &+$E+$ A&$I4I$ -E2A-1

Engaging

Introduction(5 minutes)

Attract Student $eacher enters the class and !ish 6salam7.

$eacher gives an instruction to "eep all boo"s on the

table. 2a"e sure the class gives attention to the teacher

instruction (gain their attention b as"ing them 6'o I

loo" beautiful toda7.

&all student8s

name that disobe

teacher8sinstruction.

&reate motivation

&an ou guest

!hat8s the moleculethat I said *ust no!9

$eacher stimulate the class b telling them that !e

surrounded b covalent bond.

$he8re in the air ou breathe and in the !ater ou

drin". ou even ma"e them ourself !hen ou exhale.

$eacher as"ing them to give some example.

here do ou thin" this bubble comes from9

Actuall% these bubbles come from the reaction bet!een

aluminum and heav acid. It produced ,drogen gas.

,drogen gas is one example of covalent bond

2a"ing connection ; prior

"no!ledge

Structuring lesson

$eacher as"s student !hat ionic bond is.

-edefine !hen students ma"e an mista"e

$eacher sho!s a small demonstration using aluminum and

heav acid.

ieces of

aluminum

,eav acid

solution

ic"er

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Empo!eringStep