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DIFFERENTIATES SOLID FIGURES FROM PLANE FIGURES. M6GE-IIIA-28

BY: ANNALICE R. QUINAY

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DRILL: GROUP ACTIVITY: �

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DRILL: GROUP ACTIVITY: �

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REVIEW:�

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REVIEW:�

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GUESSING GAME:�

I have 4 sides. My sides are equal. I have 4 vertices.

I have 0 sides. I have 0 vertices. I am round

circle

square

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GUESSING GAME:�

I am a solid figure. I have no faces or edges. I am round.

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I have 3 sides. My sides are not always the same. I have 3 vertices.

triangle

sphere

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GUESSING GAME:�

I am a solid figure. I am round and have 1 round face. I have a point and 1 round edge.

I am a solid figure. I have 6 faces. 8 vertices and 12 edges, all equal.

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cube

cone

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PRESENT THIS PROBLEM:�

A boy visited a toy store and he found the ff.:

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Use the four-step plan to solve the problem.

2.Plan:

Strategy: Use the definition (to identify plane and solid figures)

1. Understand:

  1. What is asked?
  2. What are the given facts?

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3. Solve:

Plane figures are closed figures whose points lie on the same surface. They are flat and have only two dimensions- the length and width. Ex. Square, triangle, circle, rectangle

Solid figures are 3-dimensional figures that have length, width, and height. Ex. sphere. cube. Rectangular prism, cone, pyramid.

Answer: The top of the table, floor, wall, receipt and the face of a card are plane figures while the ball, toy car, toy plane, dice, robot, toy block, & Chinese bagua are solid figures because they are not flat & have 3 dimensions.

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4. CHECK:

  • THE TOP OF THE TABLE, FLOOR, WALL, RECEIPT AND THE FACE OF A CARD HAVE ONLY 2 DIMENSIONS – LENGTH & WIDTH. THEREFORE, THEY ARE PLANE FIGURES. AND THE BALL, TOY CAR, TOY PLANE, DICE, ROBOT, TOY BLOCK, & CHINESE BAGUA HAVE 3 DIMENSIONS – LENGTH, WIDTH & HEIGHT. THEREFORE, THEY ARE SOLID FIGURES.

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�

SHOW A VIDEO ON DIFFERENTIATING PLANE AND SOLID FIGURES

“2D & 3D SHAPES”

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ASK THE FF. QUESTIONS:��

What is a plane figure?

A plane figure is two dimensional figure which possesses an area but the volume of this figure is zero. The examples of plane figures are square, circle, rectangle, triangle etc. Plane figures can be drawn on a paper. The unit of area of a plane figure is square of unit of length. The study of plane figures is called plane geometry.

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ASK THE FF. QUESTIONS:��

What is a solid figure?

The three dimensional figures are called solid figures. These figures have an surface area as well as a volume. These figures cannot be drawn on a paper. The examples of solid figures are cuboid, parallelepiped, football, solid sphere etc.

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GROUP ACTIVITY:�

1.Divide the class into cooperative groups of five.

2.Each group is assigned a solid figure and given their shape to examine .

3.They draw a picture of their shape, and list its characteristics, including: the plane figure that creates its faces.

4. The leader of the group will report the work of the group.

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PAIR-SHARE: DISTRIBUTE THE ACTIVITY SHEETS

Cut the above graphics and glue them under suitable categories.

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WHAT IS THE DIFFERENCE BETWEEN A PLANE FIGURE AND A SOLID FIGURE?�

  • THE DIFFERENCE BETWEEN PLANE AND SOLID FIGURES IS IN THEIR DIMENSIONS. WHERE A SQUARE IS A PLANE FIGURE, ITS 3D COUNTERPART, THE CUBE, IS A SOLID FIGURE. THE SAME COMPARISON EXISTS BETWEEN A CIRCLE, OR PLANE FIGURE, AND A SPHERE, A SOLID FIGURE. INDIVIDUALS CREATE PLANE FIGURES BY CONNECTING POINTS ON A GRID TO CREATE 2D GEOMETRICAL SHAPES. THE SAME SHAPE TAKES ON EXTRA DIMENSION BY ADDING ADDITIONAL POINTS AND LINES TO GIVE THE SHAPE HEIGHT, WIDTH AND DEPTH.

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SORT-OUT THE FIGURES INTO THEIR CORRESPONDING COLUMNS.

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By: ANNALICE R. QUINAY