SYSTEMTIC APPROACH TO TEACTHING AND LEARNING WATER Prof. Dr. Ameen Farouk M. Fahmy Chemistry Dept.,...

SYSTEMTIC APPROACH TO TEACTHING AND LEARNING WATER

Prof. Dr. Ameen Farouk M. Fahmy

Chemistry Dept., Faculty of Science, Ain Shams University

1st PS-SATLC17-27 Nov.[2008]Karachi-Pakistan

(I)Formation of water Molecules by covalent Bonding

(V)Abnormality In physical properties

(III) Polar Solvent

(IV) Hydrogen bonding

(II) Polarity of water molecules

(VI)State of water

(VII) Water Pollution

(VII)Water Cycle in

nature

Water

A HB(?)

C

(?)(?)

(?)

D (?)E

(?)

G(?)

F

(?)

Fig (1): Separate Physical Relations

We can change Fig (1) to A systemic diagram as illustrated in (SDO)

VIIWater Cycle in

nature

(I) Formation of water molecules by covalent bonding

(V)Abnormaliy In physical properties

(III) Polar solvent

(IV) Hydrogen bond

(II) Polarity of water molecule

(VI)State of water

(VIII) Water Pollution

Water

A

HB(?)

C

(?)

(?)

(?)

D

(?) E(?)

G(?)

F

(?)

(1) (3)

(4)(2)

(8) (5)

(6)(7)

(?)

(?)

(?)

(?)

(?)(?)

(?)

(?)

SDO

Systemic Diagram (SDO) represents systemic unknownRelations between physical properties of water

By studying the relations (1 2), and (A c)We can change (SDO) to (SD1) by adding these relations

(I)Formation of water molecules by covalent bonding

(V)Abnormality In physical properties

(III) Polar solvent

(IV) Hydrogen bonding

(II) Polarity of water molecule

(VI)State of water

(VIII) Water Pollution

(VII)Water Cycle in

nature

Water

(A)

(H)(B)(√)

(C)

(√)

))?

((√)

(D)_(E)

(G)

)F( ()

)F

(1) (3)

(4)(2)

(8) (5)

(6)(7)

)?(

(√)

(√) )?(

)?(

)?()?()?()?(

)?( )?(

)?(

SD1

Systemic Diagram (SD1) with known relations)1 ,2 ,and a – C (and the rest of the relations are unknowns

By studying the relations (3 4), and (G H)We can change (SD1) to (SD2) by adding the new relations

(I)Formation of water molecules by covalent bonding

(V)Abnormality In physical properties

(III) Polar solvent

(IV) Hydrogen bonding

(II) Polarity of water molecule

(VI)State of water

(VIII) Water Pollution

(VII)Water Cycle in

nature

Water

(A)(H)

(B)(√)

(C)

(√)

(√))

((√)

(D)_(E)

(√)

)F( ()

)F

(1) (3)

(4)(2)

(8) (5)

(6)(7)

(√)

(√)

(√) (√)

(G)

)?()?()?)?(

)?( )?(

)?(

SD2

Systemic Diagram (SD2) with known Relations (1 – 4, A – C, and G H), the rest of the

Relations are unknown

By studying the relations (5 –8), and (D-F) we can change (SD2) to (SDf) in which all the relations are known

(I)Formation of water molecules by covalent bonding

(V)Abnormality In physical properties

(III) Polar solvent

(IV) Hydrogen bonding(II) Polarity of

water molecule

(VI)State of water

(VIII) Water Pollution

(VII)Water Cycle in

nature

Water

(A) (H)(B)(√)

(C)

(√)

(√))

((√)

(D)_(E)

(√)

)F( ()

)F

(1) (3)

(4)(2)

(8) (5)

(6)(7)

(√)

(√)

(√) (√)

(G)

(√)(√)

√))(√)

(√) (√)

(√)

SDF

Systemic Diagram (SF) in which all the relations (1-8), and (A H) are known