A semi-detailed lesson plan in Basic Concept of Probability used in demo teaching as one of the classroom observation tool

1. A Semi-Detailed Lesson Plan
In Math 8
February 20, 2019
Date of Teaching
3:45-4:45
Time of Teaching
Quiot National High School
Venue of Teaching
Prepared by:
LORIE JANE L. LETADA
Teacher 1
Observed by:
MA. LOURDES E. JACA
PRNCIPAL

2. I. Intended Learning Outcomes
Through varied learning activities, the grade 8 students with at least80 % ofaccuracy shall
able to:
1. Define experiment, outcome, sample space and event
2. Interpret the probability ofan event
3. Count the number ofoccurrence ofan outcome in an experimentusing
diagram and systematic listing
II. Learning Content
A. SubjectMatter
Basic Conceptof Probability
B. Reference
Spiral Math 8 by Jose Maria L. Escaner and et. al., pages 207 – 209 Advanced
Algebra, Trigonometry and Statistics IV by Soledad Jose –Dilao and et. al., pages 258-
259, Math Learners’ Module 8
C. Materials
Dice, Overhead Projector, chalkboard, strips ofpaper
III. Learning Experiences
A. Preparation
Help Me Dress UP!
Jane will have a date this coming Saturday. She cannot able to decide her outfitto
wear. Will you help her dress up? In her closet, she has these choices.
Questions:
1. How many dresses are there?
2. How may pair of shoe ware are there?
3. How many different outfit can she choose?
4. What do you think is the bestoutfit for her date?
B. Presentation
 Experiment
A situational activity that we have done earlier which makes choices
 Outcome
Any possible result ofan experiment
 Sample Space
Complete listofall possible outcomes ofan experiment
 Event
One of the list possible outcome
 Probability
Branch of Math that deals with uncertainty

3. Example:
In rolling a die, listall the possible outcomes in getting even numbers.
Sample Space: { 2, 4, 6}
C. Practice
1. Determine the sample space in tossing two coins.
Sample Space: {HH, HT, TH, TT}
2. Determine the sample space for a two-child Family.
First Child Second Child Outcome
B (B, B)
B
G (B, G )
B (G , B)
G
G (G, G )
Sample Space: { BB, BG, GB, GG }
IV. Evaluation
1. In throwing a fair die, listthe sample space in getting odd numbers.
2. Determine the sample space in having a Three-Child Family.
V. Assignment
1. In an experiment, a card is picked from a stack of six cards, which spell
the word PANG-URI.
Possible outcomes are P, A 1, N, G, U, R 2 and I.
Sample space, S = { P, A 1, N, G, U, R , I.}.
2. Picking 2 marbles, one at a time, from a bag that contains many blue
and red marbles.
Possible outcomes are: (Blue, Blue), (Blue, Red), (Red, Blue) and (Red, Red).
Sample space, S = {(B,B), (B,R), (R,B), (R,R)}.