User:Swapna/LESSON PLAN

LESSON PLAN (I)	INFORMATION ABOUT THE LEARNERS

CLASS: INTERMEDIATE  I  YEAR

SUBJECT: MATHEMATICS

UNIT: FUNCTIONS

DURATION: 45 MIN (II)	LEARNER OBJECTIVES:

KNOWLEDGE:

i.Student acquires the knowledge of FUNCTION.

ii.Student recognizes mapping through examples.

UNDERSTANDING: i.student understands DEF,EXAMPLE. APPLICATION: Student solves exercise problems. ANALYSIS: Student analyses two different functions.

(III)	DEVELOP THE INTRODUCTION:

(A)TESTING PREVIOUS KNOWLEDGE: (i)Define a SET? (ii)Define a subset? (iii)what is an ordered pair? (IV)MAIN BODY OF THE LESSON: FUNCTION: Let A,B be the two sets &their elements be represented by a & b.     Let there exists  a correspondence denoated by ‘ f ’,which associates to each ‘a’, a unique ‘b’,we say f is a function(mapping) of A into B. Here A is called as DOMAIN,B is called as CO-DOMAIN.

RANGE is f(A)={f(a)|a€A}.

EXAMPLE: Suppose A= {a,b,c}, B={1,2,3} f:A->B is given by f(a)=1,f(b)=2,f(c)=3.

TYPES OF FUNCTIONS:

(I)	ONE-ONE FUNCTION.

(II)	Onto FUNCTION.

(III)	BIJECTIVE FUNCTION.

(IV)	IDENTITY FUNCTION.

(I)ONE-ONE FUNCTION:

If the mapping f :A->B is said to be one-one function if distinct elements of A have distinct f –images in B.

Ex:f(x)=x2