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

· Task assignment

**H. ****Activity :**

· opening

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

· Discuss about difficult homework

· 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.