5.3 (a) covalent bond meaning
TRANSCRIPT
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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) $hin" creative and analtical !hile doing activit.
iv) eing cooperative !hile doing the activit.
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$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