SELF DESIGNED INNOVATIVE

LESSON

RATIO AND PROPORTION

THANSEELA .N MATHEMATICS

REG NO: 13386008

2013-2014

Name of the teacher: Thanseela

Name of the school : G.G..H.S.S.Pattom

Subject : mathematics

Unit : ratio and proportion

Sub unit : proportion

Class : 8

Division : E

Strength :34/37

Duration : 45 min

Date : 17/7/2014

CURRICULAR STATEMENT

To give concept of proportion

CONTENT ANALYSIS

TERMS : fraction, ratio, proportion

FACTS : ratio can be used to compare parts of a single thing.

CONCEPT: Individual quantities change, but ratio remain same is called proportion.

PROCESS: process of teaching and learning of proportion

PROCESS SKILS: observing, classifying, finding, analyzing, interpreting, calculating

LEARNING OUTCOMES

The pupil,

i. remember the facts, concept,…, related to ratio

ii. develop understanding above facts, concepts,…,related to proportion

iii. applies the above facts, concepts,…,related to proportion

iv. detects the above facts, concepts,…,related to proportion

v. discriminates the above facts, concepts,…,related to proportion

vi. design a new idea related to proportion

vii. develop skills related to proportion

viii. create interest in concept proportion

PRE-REQUISITES: concept of fraction, ratio

LEARNING AIDS: activity sheet, chart, ordinary class room equipments.

LEARNING STRATEGIES : group activity, group discussion.

Interaction procedure Pupil response

Teacher introduce a new concept to students

Teacher shows different pictures, things to students and ask to observe them.

Students listen

Students actively participated

Group 1

Group2

Group 3

Group4

Students keenly observe the pictures

First group response that both pictures are same. But

different in size.

Second group response that they are same pictures but different

in size

Third group response that they are same pictures but different in

size

Teacher explain that these pictures are same but different in size. Can you say

what property is this?

Teacher give another group activity.

group1

To find ratio of each rectangle

And find which have same ratio

A B C

Group 2

find ratio of each triangle And find which have same ratio

Fourth group also response that they are same pictures but

different in size.

students listen and give many answers

Students do interestly

Fig(a) I:b = 2:1

fig(a) fig(b)

fig(c)

Group3

And find which have same ratio

fig(a) fig(b) fig(c)

Group4

two cups of water and one cup of milk

six cup of water and 4 cup of milk

nine cups of water and six cups of milk

Fig(b) l:b= 4:2=2:1

Fig(c) l:b = 5:2

Figa and fig b have same ratio

Figure(a) black : orange 2:1

Figure(b) black : orange 2:2=1:1

Figure(c) black : orange 4:2 =2:1

figure (a) and figure (c) have same ratio

Figure(a) ratio of sides 2:2:2:2=1: 1:1:1

Figure(b) ratio of sides 4:4:4:4 = 1:1:1:1

Figure(c) ratio of sides 2:4:2:4=1:2:1:2

Figure (a) and figure (b) have same ratio.