mathematics 6 Finding the missing term WEEK 2, d3.pptx

mathematics 6 Finding the missing term WEEK 2, d3.pptxterm WEEK

1. Finding the Missing Term in a Proportion Mathematics 6, Quarter 2, Week 2, Day 3 Prepared by: ANITA E. BUGNAY Grade 6 Teacher Tuba District Benguet Province

2. Checking of assignment

3. Review on equivalent fractions.

4. Which of these fractions are equivalent? a. 6/8 and ¾ d. 2/3 and 3/2 b. ¼ and 4/16 e. 6/10 and 9/10 c. 16/24 and 8/12

5. Motivation Do you help your parents at home especially during weekends? Why?

6. Present this problem: 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?

7. Discuss the lesson through the problem presented. Buko 1 3 buko or 1:4 = 3:N Litres 4 N litres of water of water Solution: 1X N= 3X 4 or 1 : 4 = 3: N 1N = 12 1 X N = 4 X 3 N = 12÷1 N = 12 ÷1 N = 12 N = 12 =

8. To check: 1 3 or 1: 4 = 3 : 12 4 12 12 = 12 12 = 12

9. Give another example: {Group Activity) Zeny and her mother also sells hotcakes on weekends. Mother’s recipe calls for 3 eggs to make 5 hotcakes . Zeny wants to make 25 hotcakes. How many eggs will she need?

10. Tell whethter the following ratios are proportions. Say Yes if they are and No if not, change one term to make them proportion. a. 4/5 and 28/35 b. 18 : 45 and 4 : 12 c. 20/48 and 15/36 d. 3 : 21 and 6 : 40 e . 9 : 12 and 27 : 32

11. Application: What number compared to 10 is the same as 28 compared to 5? Six compared to 12 is the same as 12 compared to what number? A motorist traveled 120 km in 3 hours. At the same rate, how long will it take to travel 360 kms ?

12. Generalization: What is a proportion? What are the terms or elements in a proportion? How do we find the missing term in a proportion?

13. Evaluation: Solve for the missing term in each proportion. 6: N = 8 : 12 N : 7 = 6 : 21 20 : 24 = N ; 6 N : 6 = 3 : 18 14 : 21 = 2 : N

14. Assignment: Find the missing term to make the proportion true. 9 : N = 27 : 15 N : 8 = 12 : 32 5: 3 = 25 : N

15. Thank You !