LESSON PLAN
Class/Semester : IX / Odd
Topic : Build Curved Side Chambers Sub Topic : The Surface Area Of The Sphere
Meeting : -
Time Allocation : 40 minutes A. CORE COMPETENCIES
CC-1: Appreciate and practice their religion
CC-2: Appreciate and practice honest behavior, discipline, responsibility, caring (mutual assistance, cooperation, tolerance, peace), polite, responsive, and pro-active and show the attitude as part of the solution to various problems in interacting effectively with the social and natural environment as well as in position ourselves as a reflection of the nation in the association world.
CC-3: Understanding, applying, analyzing factual knowledge, conceptual, procedural based on the curiosity sense about science, technology, arts, culture, and humanities with an insight into humanity, national, state, and civilization-related causes of phenomena and events, as well as applying procedural knowledge in the field of study according to the specific talents and interests to solve the problem.
CC-4: Processing, reasoning, and presenting in the realm of the concrete and abstract domains associated with the development of the self-learned at school, and were able to use the method according to the rules of science.
B. BASIC COMPETENCIES
Basic Competence Indicator 3.7 Determine the surface area of the
sphere.
3.7.1 Finding the formula for the surface area of a sphere.
3.7.2 Determine the surface area of the sphere
4.7 Solving contextual problems related to the surface area and volume of curved side shapes, as well as combinations of several curved side shapes
4.7.1 Solving everyday problems related to the surface area of the sphere.
C. LEARNING OBJECTIVES
1. Students can determine the surface area of the sphere.
2. Students can solve problems related to the surface area of the sphere.
D. METHOD OF LEARNING
1. Model of Learning : Discovery Learning
2. Method of Learning : Asking-Questioning, discussion, and given task
E. LEARNING ACTIVITIES
Preliminary Activities Time
Allocation 1. Teacher checks student attendance.
2. Apperception :
Teacher connects the topic that will be learned with previous topic that is a area of circle by questioning.
3. Motivation :
Teacher prepare students with motivation by showing vollyball making video : “From that’s video, for example the diameter is 30 cm, have you calculate how many volley rubber material minimal which needed for 1 volleyball
3 minutes
Main Activities Time
Allocation Phase 1: Stimulation
1. Teacher give information about lesson that will learn
2. Teacher define the students to be group, every group have three
3 minutes
members.
Phase 2 : Problem Statement
3. Teacher gives a work sheet for every group.
4. Teacher guide the students of the relevant problems with the subject matter
5. Student make a formula based on the hypothesis of the problem
3 minutes
Phase 3 : Data Collection
6. Teacher give the time to students for try the experiment.
7. Students try the experiment.
10 minutes
Phase 4 : Data Processing
8. Teacher guide the students to process the data.
9. Teacher go arround to check each group
10. Students process and write the data in answers sheet.
7 minutes
Phase 5 : Verification
11. Teacher give the time to students for explain the result of the experiment.
12. Students explain their result
13. Student from other group explain the result if different with first group.
14. Teacher help the students to proof the hypothesis.
8 minutes
Phase 6 : Generalization
15. Teacher give the time to students for generalization 16. Teacher with student conclude the lesson today
3 minutes
Closing Activities Time
Allocation 1. Teacher give the appreciations for all students with applause
2. Teacher with students try to solve problem before.
3. Teacher closes the activity today.
3 minutes
F. MEDIA AND LEARNING RESOURCES
Media : Student worksheets (LKS), assessment sheets Tools/Materials : 1. Power point
2. LCD
3. Work sheet 4. Tali kur 5. Bola Plastik 6. Jarum Pentul 7. Lem
Learning Resources : 1. Mathematics Book Class IX semester 2 2. Relevant reference books
G. EVALUATION
OBSERVATION SHEET FOR LEARNING ACTIVITIES
Student’s Name : ………
Class : ………
Meeting : ………
Implementation Day/Date : ………
Give an assessment of the aspects of the observed observations by placing check marks (√) on the various values according to the indicators.
N
O OBSERVED ASPECT
ASSESSMENT SCORE Not
Enough Enough Good Very
Good
1 2 3 4
1. Do a prayer before studying
2. Pay close attention to teacher’s
explanation regarding the material to be discussed
3. Student activeness in learning 4. Cooperation in group discussions 5. Asking question
6. Express opinion
7. Respect other people’s opinions 8. Deliver material conslusions
Scoring Description:
Score 1 = Not Enough Score 2 = Enough Score 3 = Good Score 4 = Very Good
Makassar, …... March 2023 Subject Teachers
Fadliyah Zahrah
ASSESSMENT SHEET OF GROUP PRESENTATION RESULTS
Group Name : ……….
Class : ……….
Meeting : ……….
Implementation Day/Date : ……….
Give an assessment of the aspects of the observed observations by placing check marks (√) on the various values according to the indicators.
NO OBSERVED ASPECT
ASSESSMENT SCORE
Not Accordance Not Suitable Accordance Very Accoriding
1 2 3 4
1.
The scope of the material is in accordance with what is discussed in the group.
2.
Presentation of material is clear and easy to understand
5.
Submission of material by giving examples that are easy to understand
6. Ability to attract attention, motivate, articulation and gesture
7. Appearance in
presentation
8.
Attitudes towards questions asked by the teacher or students from other groups
9.
Ability to answer questions asked by the teacher or students from other groups
10.
Ability to convey the overall results of the discussion
Scoring Description:
Score 1 = Not Accordance Score 2 = Not Suitable Score 3 = Accordance Score 4 = Very According
Makassar, …... March 2023 Subject Teachers
Fadliyah Zahrah H. ATTACHMENT
WORK SHEET
Education Units : Junior High School
Class/Semester : IX / Odd
Topic : Build Curved Side Chambers
Sub Topic : The Surface Area of The Sphere Name of Group Member : 1. …
2. … 3. … 4. …
A. BASIC COMPETENCIES
3.7 Determine the surface area of the sphere.
B. LEARNING OBJECTIVES
1. Students can determine the surface area of the sphere.
2. Students can solve problems related to the surface area of the sphere C. ACTIVITY
1. Look at the Tools and Materials first.
2. Split the plastic ball into 2 parts.
3. Take the pin and the strap. Plug the pin into the end of the curly strap, then plug it again into the center of the center of the half plastic ball surface.
4. Wrap the rope so that it covers the half plastic ball surface.
5. Make a Circle using half plastic balls on the sketch. After that, make a circle in the center of the circle using the ¼ circle fold earlier.
6. Take back the string that has filled the surface of the plastic ball. Then cut the rope in half..
7. Wrap it around the circle that has been drawn on the sheet of paper. Place it right from the center point that was made earlier, until it fills the image.
D. SKETCH
E. RESULTS
i. Find The Formula Surface area of the half sphere
:
Surface area of the sphere :
ii. Find The Surface Area of the plastic ball Surface area of the half
sphere
:
Surface area of the sphere :
F. CONCLUSION
