LESSON PLAN IN MATHEMATICS 6
I. OBJECTIVES
Content Standards: Demonstrates understanding of solid figures
Performance Standards: Is able to construct and describe the different solid figures: cube, prism, pyramid, cylinder, cone, and sphere
Most Essential Learning
Competencies: Visualizes and describes the different solid figures:
cube, prism, pyramid, cylinder, cone, and sphere using concrete and pictorial models
Differentiate solid figures from plane figures (M6GE-IIIa-28)
Specific Objectives: a. Identify different solid figures
b. Describe the characteristics of different solid figures
c. Differentiate solid figures from plane figures
d. Work cooperatively in groups
II. SUBJECT MATTER
A. Solid Figures
B. K to 12 MELC, M6GE-IIIa-28, p. 224; 21st Century Mathletes, pp. 186-199
C. TV, pictures, slides presentation, models, graphic organizers
D. Cooperation
III. PROCEDURE
A. ELICIT
Physical Response Task: Who Am I?
· Review the different plane figures using the following riddles. Let learners respond using the sign language for A ( ), B ( ) and C ( ).
1. I am a three-sided figure. I can be equilateral, isosceles, or scalene.
Who am I?
A. Rectangle B. Triangle C. Square
2. I am a four-sided figure. My sides are all congruent. I have four right angles.
Who am I?
A. Trapezoid B. Triangle C. Square
3. I am a quadrilateral. I have opposite sides parallel and of equal length. I also have four right angles
Who am I?
A. Circle B. Square C. Rectangle
4. I am a quadrilateral with two parallel sides but not equal in length.
Who am I?
A. Trapezoid B. Triangle C. Square
5. I am a plane figure with no edges or vertices. I am formed by tracing a curve that is always the same distance from the center.
Who am I?
A. Circle B. Square C. Rectangle
B. ENGAGE
Film Showing
· Show a videoclip of 2-Dimensional (2D) and 3-Dimensional (3D) animation.
· Ask: What do you think are differences between the two animations?
· Present a semantic web to gather ideas.
· Relate that in geometry, there are 2-dimensional figures called plane figures and 3-dimensional figures called solid figures.
· Compare and contrast plane and solid figures using Venn Diagram.
C. EXPLORE
Cooperative Work/Group Activity
· Divide the class in groups of 4-5 members. Remind them of proper decorum during group activity. Emphasize cooperation to successfully accomplish the given task.
· Each group will be assigned to explore a solid figure. Let them accomplish the following data retrieval chart to guide with their observation and presentation. Let them create their own definition about the solid figure.
Name of Solid Figure | Shape of the Base | Number of Faces | Number of Edges | Number of Vertices | Real-Life Examples |
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Unlocking of Difficulties: Vocabulary Development
· Provide the definition of the following words to avoid confusion among groups.
a) BASE-the face on which the figure rests
b) FACE-the flat surfaces of a solid figure
c) EDGE- the line segment where two faces meet
d) VERTEX- the corner formed when two or more edges meet in a point
· Monitor and facilitate the discussion within groups.
D. EXPLAIN
Class Reporting/Presentation
· Allow each group representative to present their answers to the class. Remind them of proper decorum during group reporting/presentation.
· Facilitate discussion and sharing of ideas.
· After presentation of each group, present the chart with complete answers.
Name of Solid Figure | Shape of the Base | Number of Faces | Number of Edges | Number of Vertices | Real-Life Examples |
Rectangular Prism | Rectangle | 6 | 12 | 8 | aquarium wood block |
Triangular Prism | Triangle | 9 | 9 | 6 | roof, tent |
Cube | Square | 6 | 12 | 8 | Rubik’s cube, ice cube |
Cylinder | Circle | 2 | 0 | 0 | can, glass, etc |
Triangular Pyramid | Triangle | 4 | 6 | 4 | Pyramids of Giza, roof |
Cone | Circle | 1 | 1 | 1 | ice cream cone, hat |
Sphere | None | 0 | 0 | 0 | ball, globe |
· Raise the following questions for critical thinking:
Why does cylinder have 0 vertex? Why does sphere have 0 face?
D. ELABORATE
Travel Time with Solid Figures
· Using slide presentation, show different landmarks locally and around the world. Let them identify what solid figures resemble these landmarks.
a. Pison Chimney in Mandurriao, Iloilo City
b. Foremost Milling in Lapuz, Iloilo City
b. Mayon Volcano in Legazpi, Albay
c. Mall of Asia Globe in Pasay, Metro Manila
d. Leaning Tower of Pisa in Pisa, Italy
e. Louvre Museum in Paris, France
E. EVALUATE
Formative Assessment
· Direction: Answer the following questions. Choose the letter of the correct answer.
1. Which is not a solid figure?
a) Pyramid
b) Triangle
c) Cone
d) Prism
2. Why are solid figures different from plane figures?
a) Solid figures are hard objects.
b) Solid figures have height, thickness, or depth.
c) Solid figures have length and width.
d. Solid figures are difficult to draw.
3. This solid figure has no base, no face, no vertices, and no edges.
a) Sphere
b) Cylinder
c) Cone
d) Pyramid
4. Which best describes a cube?
a) It has triangular base.
b) It has 8 edges.
c) It has 6 faces.
d) It has 12 vertices.
5. Which of the following best illustrates a cylinder?
a) A slice of cake
b) A drum
c) A block of soap
d) A mountain
F. EXTEND
Assignment
· Direction: Draw or take a photo of objects or landmarks within your community that resemble any of the solid figures. Put your photo/drawing in a short-sized bond paper.
Prepared by:
JAYLORD S. LOSABIA
Master Teacher I
