Teacher's Name: Pamela Mae M. Geniston School Name: Mayor Anunciacion R. Tuazon School Address: Calape, Bohol Topic: Refraction of Light Year Level: Fourth Year
National School of Fisheries
in Lenses
Objectives: A.Subject Learning Area: • At the end of the lesson the students are expected to: •
differentiate a concave from a convex lens.
•
describe how light behaves as it passes through a concave lens and a convex lens.
•
determine the focal length of a convex lens.
•
relate the focal length to the power of the lens.
B.ICT Learning Area : At the end of the lesson the students are expected to:
•
access and retrieve appropriate information from the internet.
•
communicate with a targeted audience by using sush communication technologies as e-mail and web browsers.
•
demonstrate an understanding that information can be transmitted through a variety of media.
•
create a plan for an inquiry that includes consideration of time management.
Class Duration:
2 Hours
ICT Tools/Resources: 1.
Computer with Internet connection
2.
Internet URL of the subject matter
Pre-requisite Skills:
1. The student has the initial knowledge of curve mirrors 2. Surfing the internet. Preparations: Before the class the following must be done: 1.
The students will be asked to group themselves.
2.
Check availability of computers with LAN.
3.
Save URLs in hard disks or CD/ diskette.
Activities and Procedures:
Time
Student Activities A. Review
Refraction of Light 10 mins
Teacher Activities A. Review
Facilitate the class in the review.
http://ww2010.atmos.uiu c.edu/(Gh)/guides/mtr/op t/mch/refr/more.rxml
C.Motivation
B. Motivation
View this site for sample ray diagrams:
Tell your students to think about this question :If a light http://homepage.mac.co ray enters a material like a m/phyzman/phyz/BOP/1- lens, what do you think will happen to the ray? 14MRLN/G-
10 mins
Principal_Rays_Mirrors.pd f
C. Lesson Presentation C. Lesson Presentation (student)
(teacher)
Materials The following are the materials and resources needed: 1.
slide projector
2.
software
3.
lab equipment
4.
Internet URL
The following are the materials and resources needed: 1.
slide projector
2.
lab equipment
3.
Internet URL
Curve Mirrors: concave and convex mirrors Click here to go to:
10mins
The following are the materials resources needed:
and Let the students differentiate the two lenses in terms of appearance, etc. Guide students in accessing the web freely. The teacher htthttp://faculty.virginia. gives a summary of the descriptions of concave and edu/teach-presentconvex lens. bio/LightRefraction.htmlp
1.
slide projector
2.
lab equipment
3.
Internet URL
://faculty.virginia.edu/tea ch-presentbio/LightRefraction.html
Learn about the curve
The teacher gives a The following are the materials and resources needed:
mirrors by reading and
summary on how
viewing images at this
light rays behave
1.
slide projector
site.
when passing
2.
lab equipment
through a concave
3.
Internet URL
http://www.mhschool.co m/science/2005/student/ summary.php?isbn=0022
20mins
1.
812156&id=812&level1= F&level2=16&level3=7 Activity Perform the activity:
lens and convex lens
Guide the students in
The following materials
downloading worksheets
and resources are
from the website on the
needed:
MS Word.
http://www.curriculum.edu.au 20mins /sciencepd/light/refl_ray.htm
1.
lab equipment
2.
internet URL
3.
software
1. 2.
lab equipment internet URL
1. 2. 3.
lab equipment internet URL software
D. Assessment (student) D. Assessment (teacher) Take the quiz in this site:
10mins
http://www.mhs chool.com/scien ce/2002/student /mhquiz.php3?q uiz=1&vGrade=5 &vUnit=F&vChap ter=14&vLesson =7&vAlt=Tiger& vAnswered=no
Cloze quiz: The teacher explains the assessment objectives, and area of knowledge to be evaluated. Link to assessment site:
E. Generalization
E. Generalization
(student)
(teacher)
Summarize concepts by answering these questions. 1.Differntite a concave from a convex lens. 2. Describe how light behaves Ask the students questions as it passes through a 30mins that would elicit important concave lens and a convex concepts taken up. lens. 3. What is the relationship between the focal length and the power of the lens?
F. Agreement (student)
F. Agreement (teacher)
Do activity 5.4 – 5.11 in this site. Assign students to work on activity 5.4 – 5.11 in this site: http://www.nelson.com/nelson The following materials and resources needed: 10 mins n/school/elementary/science/ /school/elementary/science/0 176074974/studactivities_unit 1.lab equipment 0176074974/studactivities_u 05.html#5.12 2.intenet URL http://www.nelson.com/nelso
nit05.html#5.12
Activity Rubric
Criteria Components of the report
95-100 All required elements are present and additional elements that add to the report (e.g., thoughtful comments,
86-94 All required elements are present.
Data
Professional looking and accurate representation of the data in tables and/or graphs. Graphs and tables are labeled Clear, accurate diagrams are included and make the experiment easier to understand. Diagrams are Lab report is typed and uses headings and subheadings to visually organize the material.
Accurate representation of the data in tables and/or graphs. Graphs and tables are labeled and titled.
Drawings and diagrams
Appearance/ organization
81-85 One required element is missing, but additional elements that add to the report (e.g., thoughtful comments, graphics) have been added. Accurate representation of the data in written form, but no graphs or tables are presented.
75-80 Several required elements are missing.
Diagrams are included and are labeled neatly and accurately.
Diagrams are included and are labeled.
Needed diagrams are missing OR are missing important labels
Lab report is neatly handwritten and uses headings and subheadings to visually organize the material.
Lab report is neatly written or typed, but formatting does not help visually organize the material.
Lab report is handwritten and looks sloppy with cross-outs, multiple erasures and/or tears and creases.
Data are not shown OR are inaccurate.
Link to On-Line Assessment Sites:
1.
Quizstar
2.
Rubric Builder
3.
DiscoverySchool Quiz Center
ACKNOWLEDGEMENT: 1.
Department of Atmospheric Science ( DAS ) at the University of Illinois at Urbana – Champaign.” Refraction of Light” http://ww2010.atmos.uiuc.edu/(Gh)/guides/mtr/opt/mch/refr/more.rxml
(accessed: Maqy 31, 2006)
2.
Thomson, Nelson, “ Optics
“http://www.nelson.com/nelson/school/elementary/science/0176074974/studactivities_unit05.html#5.1
2 ( accessed: May 31, 2006 )