math q1

1. Drill
Group pupils into tens
a. Give each group a chalkboard.
b. Let the pupils listen attentively as
you give a word problem.
c. Members of the group will work
cooperatively to come up with the
correct answer.
d. The group with the most correct answers
wins the game.

2. Review
Answer the written exercise
orally.
1500 + 100+300 + 200+2000
100+800 + 100+60 + 110

3. Motivation
Distribute “Show Me” boards to the
pupils. Show the number wheels.
Spin the wheels and let pupils see
where the pointer stops. Instruct
them to round the number where the
pointer stops.

5. Presenting the Lesson
In which hundred is 142 nearer?
In which hundred is 253 nearer?

6. Have them study each segment of the
number line. Ask from what
number each one starts with and ends.

7. Performing the Activity
Perform the activity in pair.
Estimate the sum to the
nearest:

8. Processing the Skills
1. To what place value was the number 532
rounded? How about
526?
2. To what place value were the numbers
in item 2 rounded? Why?
3. What rules in rounding should you
remember?
4. What final step did you do to find
the estimated sum?

9. Reinforcing the Concept

10. . Summarizing the Lesson
What steps do we follow in estimating the
sum of 3- to 4- digit
addends?
 To estimate the sum up to 3- to 4- digit
addends, round the numbers to
their greatest place value then add the
rounded numbers.

11. Applying to New and Other Situations
I-round off ang sumusunod na addends
at ibigay ang natantiyang kabuuan
(estimated sum). Isulat ang sagot sa
inyong papel.

12. Evaluation
1) Ibigay kung ang bilang ng papel na
nagamit noong araw ng Lunes at Martes?
2) Ano ang natantiyang kabuuang bilang
(estimated sum) ng papel na nagamit
noong araw ng Miyerkules at Huwebes?

13. 3) Ano ang natantiyang kabuuan (estimated sum)
ng papel na nagamit sa mga araw na ito:
Huwebes at Biyernes__________________
4) Ano ang natantiyang kabuuan (estimated sum)
ng papel na nagamit sa mga araw na ito:
Lunes at Biyernes_________________________
Martes at Huwebes_______________________
5) Ibigay ang natantiyang kabuuan (estimating
sum) ng bilang ng papel na nagamit sa loob ng
limang araw.
Ano ang kabuuang bilang ng papel na nagamit?

14. Home Activity
Basahin ang datos sa tsart. Sagutin
ang mga tanong sa
ibaba.

15. 1) Magkano ang natantiyang kinita ng tatlong
tindahan?
2) Kung pinagsama ang kinita ng tindahan A at
tindahan B, magkano ang kabuuang halaga?
3) Ibigay ang natantiyang kabuuang kinita ng
tindahan A at tindahan C.
4) Kung pinagsama ang kinita ng tindahan B at
tindahan C, magkano ang kabuuang halaga?
5) Alin sa tatlong tindahan ang may
pinakamalaking kita? Ano ang natantiyang
kinikita sa isang araw?