## RPP

LESSON PLAN

School Unit          : SMP N 1 Boyolali

Subject                 : Mathematics

Class/Semester     :VIII/I

A. Standard of Competency :

Understand the algebraic form, relation, function, and linear equation

B. Basic of Competency :

Comprehending relations and functions

C. Indicators :

a. Determining the number of mapping two sets

b. Understanding the one-to-one correspondence

c. Determining the number of one-to-one Correspondence

D. Time Allocation : 2 x 40 minutes

E. Leaning achievement :

After studying this lesson, student will be able to :

a. Determine the number of all possible mapping from two set.

b. Understanding the one-to-one correspondence

c. Determine the number of one-to-one correspondence

F. Material :

Function

G. Method/aproach :

· Orally

· Drill

· Discussion

H. Activity :

· opening

· Teacher remind function by giving the example of function in daily life.

· Informs leaning achievement.

· main activities:

a. Give example of function than determine the number of all possible mapping from two set

b. Ask student to understanding one-to-one correspondence from example

c. Give example of function that determine the number one-to-one correspondence then sketch the arrow diagram.

· Closing :

o Teacher guides student to make conclusion

o Teacher gives homework

I. Tool and reference :

Text book, white board, grid paper, and komputer

J. Assessment :

Kind : Formative text discussion result

From : essay

1. Give set A = {1,2} and set B = {3,5,7}. Determine the number of all possible mapping from set A to set B.

2. Give set A = {1,3,5} and B = {s,t,u}.then sketch the arrow diagram whit understanding the one-to-one correspondence.

3. Determine the number of one-to-one carrespondence between A = {a,b,c} and B ={1, 2, 3}. Then sketch the arrow diagram.