LESSON PLAN

Level : Junior High School

Subject : Mathematics

Class : IX

Semester : I

Material : Probability

Time Allocation : 2 x 40 minutes

A. Standard Competence

4.Understanding the probability of simple event

B. Basic Competence

4.1 Determine thesample spaceof aexperiment

C. Indicator

Explainthe sample space, points of anexperimentsample

D. Learning Objective

a. Student can determine the sample point of simple event

b. Student can determine the sample space of simple event

c. Student can determine all sample point of an event

d. Student can determine all sample space of an event by using the sample point

E. Material

Probability

F. Learning Model

Cooperative

G. Teaching and Learning Activities

a. Introduction

Apperception

Teacher explain a story about the way to choose a place before the game start

or other by using the lottery

Motivation

Teacher explain the learning objective

b. Main Activity

Make teams that consist of 5-7 students

Each team is asked to demonstrate the experiment of tossing of coin five

times.

Each team is asked to explain their work

By using ask-question teacher ask student to know the sample point and

sample space of the experiment of tossing the coin.

Student is asked to do the experiment again by using 5 different color marbles

Student do the exercise.

c. Closure

Student is asked to summarize about the sample point and sample space

H. Learning Source

Textbook, environment, die, coin, bridge card, numbered card