1. copyright@Ed2netLearning,Inc1 CUSTOMARY LINEAR UNITS GRADE 3

2. copyright@Ed2netLearning,Inc2 Hello, How are you doing? Today, we are going to start a new lesson on customary Linear Units.

3. copyright@Ed2netLearning,Inc3 Unit A fixed amount that is used as a standard of measurement is defined as Unit. Example – the length of a box is 6 cm. The measurement of distance between two end points is defined as Length. Example – the length of the line segment is 3 cm.

4. copyright@Ed2netLearning,Inc4 Customary units of length Customary Units of length are  Foot  Inch  Yard  mile

5. copyright@Ed2netLearning,Inc5 Customary Units or Metric Units Most Countries use the metric system of measurement. Example – cm, m, km, kg, g, L The United States uses the Customary Units of measurement. Example – feet, inch, yard, mile

6. copyright@Ed2netLearning,Inc6 Relation in Customary Units of length 1 foot = 12 inch (in) 1 yard = 36 inch = 3 feet 1 mile = 1,760 yards = 5,280 feet

7. copyright@Ed2netLearning,Inc7 Finding length using customary units  Line up one end of the object to the “0” mark of the ruler.  Find the inch mark that is closest to the other end of the object.

8. copyright@Ed2netLearning,Inc8 The Length of the line segment is 3 inch.

9. copyright@Ed2netLearning,Inc9 Find the length of the line segment shown using inch ruler.

10. copyright@Ed2netLearning,Inc10 Conversion of units  To convert larger unit to smaller, multiply with the conversion number. Example – 3 feet = 12 x 3 inch = 36 inch  To convert smaller unit to larger, divide with the conversion number. Example – 48 inch = 48/12 = 4 feet

11. copyright@Ed2netLearning,Inc11 Which is greater unit? a) Inch b) feet c) Mile d) yard

12. copyright@Ed2netLearning,Inc12 Which is greater than 9 feet? a) 110 inch b) 107 inch c) 100 inch d) 90 inch

13. copyright@Ed2netLearning,Inc13 Which tool is used to draw a line of length 8 ½ inch.

14. copyright@Ed2netLearning,Inc14 What is the estimated height of the tennis racket? a) 2 ft b) 2 yard c) 2 mile

15. copyright@Ed2netLearning,Inc15 ASSESSMENT

16. copyright@Ed2netLearning,Inc16 1.In Baseball, the distance between first and second base is 60 feet. How many yards is this distance?

17. copyright@Ed2netLearning,Inc17 2. What is the length of the dropper shown below?

18. copyright@Ed2netLearning,Inc18 3.Which is not correct? a) 2 feet = 26 inch b) 2 feet = 24 inch c) 3 feet = 36 inch d) 3 yard = 9 feet

19. copyright@Ed2netLearning,Inc19 4.Write the number that makes the sentence true. 5 yd = --- feet a) 15 b) 12 c) 18 d) 10

20. copyright@Ed2netLearning,Inc20 5.Victor wants to measure the length of his cat’s tail. Which tool is he most likely to use? a) Inch ruler b) Measuring tape c) Paper clips d) Yard stick

21. copyright@Ed2netLearning,Inc21 6.What unit would you use to measure the distance of the school lawn? a) Inch b) Feet c) Mile d) yard

22. copyright@Ed2netLearning,Inc22 7.A shoe is about 1  long. a) Inch b) Foot c) Yard

23. copyright@Ed2netLearning,Inc23 8.Kelvin is practicing her shot put. She throws the Shot Put 96 inch. Which is true? a) She throws 6 feet b) She throws 7 feet c) She throws 8 feet d) She throws 9 feet

24. copyright@Ed2netLearning,Inc24 9.The window of the hall is 4 feet wide. How many inches wide is the window?

25. copyright@Ed2netLearning,Inc25 10.Complete the following. 6 ft 3 in = ----- in.

26. copyright@Ed2netLearning,Inc26 Recap  Unit  Customary unit of length  Customary unit or Metric Unit  Conversion unit  Solved examples  Practice problems

27. copyright@Ed2netLearning,Inc27 Good Work! Now practice worksheets on the lesson.