FINDING MISSING TERM IN A PROPORTION_105711.pptx

Pptx

1. Finding the missing term in a proportion. BEC PELC II.K.1.2 DAY 3 MERLINDA R. TILLO MASTER TEACHER 1

2. ANSWERING ASSIGNMENT GIVE THE EQUIVALENT RATIOS OF THE FOLLOWING. 4 : 8 1) 2) 12 : 12 3) 2 : 4 4) 5 : 25

3. DRILL/ REVIEW CLAP ONCE IF RATIOS ARE EQUIVALENT CLAP TWICE IF NOT.

4. DRILL/ REVIEW 4 : 8 1 : 2

5. DRILL/ REVIEW 3 : 8 1 : 4

6. DRILL/ REVIEW 6 : 8 3 : 4

7. DRILL/ REVIEW 3 : 5 5 : 15

8. DRILL / REVIEW 7 : 14 1 : 2

9. MOTIVATION Do you help your parents at home especial during weekend? How do you help your parents?

10. What have you seen in the picture? Do you like to eat buko or drink buko juice? Do you have a friend selling buko or buko juice? Zeny is helping her parent selling buko juice during weekend.

11. PRESENTATION Please read this. During weekends, Zeny helps her mother sell buko juice. For every buko , Zeny adds 4 litres of water. How many litres of water does she need for 3 bukos so that the taste will be the same.

12. To illustrate the problem. ? 1 : 4 3 : ?

13. What Is Ask in the problem? What are given? Liters of water in 3 bukos 1 buko , 4 liters, 3 bukos What do we find in this problem? Liters of water in 3 bukos To find the no. of liters in 3 bukos let us watch a video clip. What will you do while watching?

14. What is the easy way in finding the missing portion of a proportion? DISCUSSION Z way What is the step 1 in doing this? Always divine smaller number across the bigger number. What next step? Multiply the answer diagonally with the remaining number .

15. Using these two steps can we help Zeny in her problem? ? n 1 4 = 3 n ÷ 3 x 12 12 answer

16. Solve for the missing term. GROUP 1 - What number compared to 10 is the same as 28 compared to 5? GROUP 2 - Lisa saves 60 in 4 weeks. At this rate, how long will it take her to save 300.00? ENGAGEMENT ACTIVITY GROUP 3 - ) Six compared to 11 is the same as 84 compared to what number?

17. GENERALIZATION What is the easy way in Finding the missing term of a proportion? Z way What are the two steps? The two steps are: 1. Always divine smaller number across the bigger number. 2.Multiply the answer diagonally with the remaining number .

18. APPLICATION Solve for the missing term in each proportion. a) 6:n = 8:12 b) m:7 = 6:21 c) 20:24 = x:6 d) y:6 = 28:84 e) 14:21 = 2:n 9 2 5 2 3

19. EVALUATION Find the missing term to make the proportion true. a ) 9:N = 27:15 b) N:8 = 12:32 c) 5:3 = 25:N d ) A motorist traveled 240 km in 3 hours. At the same rate, how long will it take to travel 400 km? 5 3 15 5

20. ASSIGNMENT Find the missing term in proportion. a) 2/4 = 28/n b) 18:45 = n:9 c) n/48 = l5/36 d) n:21 = 6:30 e) 9:12 = 27:n

21. MERLINDA R. TILLO Master Teacher I