Grade 5 PPT_Math_Q4_W3_Lesson 87 Name the unit of measure for measuring the volume of cube and rectangular prism..ppt
- 1. Name the unit of measure for measuring the volume of cube and rectangular prism.
- 2. DRILL: Choosing the Appropriate Unit of Measure a.You will be grouped into 4. b.Each group should have a show-me-board c.I will show you pictures or things d. I will ask, “What unit of measure will you use?” c. You will write mm, cm, dm or m d. The leader in the group will flash the answer. (Ex. cm) d. I will announce the correct answer. e. Group with the most number of correct answers is the winner.
- 7. What is the difference between cube and rectangular prism?
- 8. What are the dimensions of cube and rectangular prism?
- 9. Motivation: • Richard has a rectangular box with sand inside. He wants to know the amount of space the sand occupied. He wants to know also what unit of measure he will use.
- 10. a. How can we be able to measure the capacity of the box? b. What will you use? What do you think are we looking for?
- 11. What unit of measure will you use? The volume of a solid is the amount of space the solid occupies. Volume is measured in cubic units. One way to find the volume of a rectangular prism is to multiply the 3 dimensions: Volume = length x width x height
- 12. GROUP ACTIVITY: Measure the 3 dimensions of some objects inside the room using cm3 and m3. 1 liter = 1 dm3
- 13. What can you say about the block? What are the dimensions?
- 14. • A cube is a special type of rectangular prism having equal edges. Empty the box then let the pupils fill the box with the number of cubes. • The total number of cubes that will fill the box represents the volume of the box. When finding volume, the units of volume are cubic units. • What are the units of volume? • (cubic millimeters – mm3, cubic centimeters – cm3, cubic decimeter – dm3, cubic meters – m3, etc.)
- 15. Group Activity: Give the appropriate unit of measure to be used in finding the volume of
- 16. Select from the given choices: (mm3, cm3, dm3, m3) • A ball • A shoe box • A globe • refrigerator • An ice cream cone • A dice
- 17. Ask the groups to present and discuss their answers on the board. Expected answer: a) room m3 b) shoe box cm3 c) globe cm3 d) refrigerator dm3 e) ice cream cone cm3 f) dice mm3
- 18. • Any unit of length gives a corresponding unit of volume, namely the volume of a cube whose side has the given length. For example, a cubic centimetre (cm3) would be the volume of a cube whose sides are one centimetre (1 cm) in length. • In the International System of Units (SI), the standard unit of volume is the cubic metre (m3). Metric System also includes, • cubic meter (m3) used to measure large amount of space occupied • cubic decimetre (dm3) • cubic centimeter (cm3) • cubic millimeter (mm3) used to measure the small amount of space occupied
- 19. Get Moving! • Tell the cubic unit of measure to be used in the following illustrations: • (in words and in exponential form)
- 20. Keep Moving! • Use m3, dm3, cm3 and mm3 to tell which cubic unit of measure is appropriate to be used. • match box _____ • Book ______ • Door ______ • Classroom _______ • Sofa ______ • garden plot _______ • Closet ________ • Table _______
- 21. Apply Your Skills! • Write the best unit of measure for the following: • 1. water in an aquarium • 2. a bag of cement • 3. a box of milk • 4. wooden alphabet block • 5. gasoline in a container
- 22. 1) A piece of soap is 9 cm by 4 cm by 3cm. 2) An aquarium is 0.8 m long, 0.4 m wide, and 0.45 dm deep. 3) An iron bar 2 m long and 0.05 m in diameter. 4) An ice cream cone 2 cm in radius and 6 cm in height. Give the cubic unit of measure used in the following problems.
- 23. Summarizing the Lesson • What do you call the capacity of things or the total space within a 3-dimensional figure? • What unit of measure will you use in measuring volume? • •Volume is the amount of space occupied by a space figure. • •Volume measured in cubic units, such as • cubic centimeter (cm3) • cubic meter (m3) • cubic millimeter (mm3) • cubic decimeter (dm3)
- 24. A. Write the cubic unit of measure used.
- 25. B.Use cm3, m3, dm3 to tell which cubic unit of measure is appropriate to be used. • • a) box of chocolate • b) tent • c) glass • d) gymnasium • e) math book
- 26. Additional Activity: • Give the cubic unit of measure for finding the volume of the following: • a) a box 44 cm by 9 cm by 6 cm • b) a room 4m by 5m by 6 m • c) a cabinet 1.2 m by 0.9 m by 0.5 m • d) a ball with radius 10 cm • e) a cylindrical tank 25 dm long and radius 8 dm