MathematicsGrades4 Quarter1 Module1.pptx

Over time, children develop different number skills when they learn:

The correct order of number words.
The names for symbols for those words (like 4, 5, 6).
That a number tells us “how many,” and later, that each number word means a specific amount; only then do children learn how numbers are related to each other.
What numbers mean, which occurs gradually—it’s harder for children to understand numbers when talking about abstract ideas like time and money.

1. Mathematics Quarter 1–Module 1 : VisualizingNumbers up to100000

2. What I Need to Know The set of whole numbers includes zero and the counting or natural numbers 1,2,3,4, 5 and so on.

3. In this lesson, you will learn how to visualize numbers up to 100 000 with emphasis on numbers 10 001 to 100 000 using illustrations, blocks or number discs. At the end of the lesson, you should be able to: visualize numbers up to 100 000 with emphasis on numbers 10 001 to 100 000.

4. What I Know Let’s begin our activity. Please answer the exercises carefully.

5. What number is represented by the number discs? Write your answer in your answer sheet. __________________ __________________ 10 000 10 000 10 000 10 000 1 000 1 000 100 100 100 10 10 10 10 10 1 1 1 1 1 1 1 1 10 000 10 000 10 000 1 000 1 000 1 000 100 100 100 100 100 10 10 10 10 1 1 1 1 1 1

6. _________________ _________________ _________________ 10 000 10 000 10 000 10 000 10 000 1 000 1 000 10 10 10 10 10 10 1 1 1 1 1 1 1 100 100 100 100 100 100 1 000 1 000 1 000 1 000 10 000 10 000 10 000 10 000 10 000 10 000 10 000 10 000 1 000 1 000 100 100 10 10 10 1 1

7. Show the numbers below using number discs and base- 10 blocks. 1-2. 5 333 Look for the proper representation of the numbers. Select the letter of the correct answer. 8 blocks, 7 flats, 6 longs, and 5 cubes a. 8 765 b. 8 657 c. 8 567 2 blocks, 8 flats, and 3 cubes a. 2 830 b. 2 083 c. 2 803 7 blocks, 4 longs, and 2 cubes a. 7 142 b. 7 042 c. 7 420

8. What’s In Do you still remember how to read large numbers? Let’s try to read the following numbers.

9. The following numbers are read as: 13 896 - thirteen thousand, eight hundred ninety-six 23 544- twenty-three thousand, five hundred forty- four 50 680 - fifty thousand, six hundred eighty 52 567 - fifty-two thousand, five hundred sixty-seven 100 000 - one hundred thousand

10. Let us also recall the place value of each digit in the number. Hundred Thousands Ten Thousands Thousands Hundreds Tens Ones 1 3 8 9 6 2 3 5 4 4 5 6 8 5 2 5 6 7 1 Don’t forget the place value of every digit in a number because it is very important in reading and writing numbers.

11. Have you experienced lockdown during the COVID-19 pandemic? How did you find it?

12. What’s New During the COVID-19 pandemic, a city mayor bought 24 647 kilos of vegetables harvested by a group of farmers in Benguet. All households were given vegetables and they were very grateful of it. Let us see how big 24 647 is.

13. What is It How can we visualize numbers up to 100 000? One way is by using number discs.

14. Let us see how we can use number discs to represent 24 647. 10 000 1 000 100 10 1 10 000 1 000 1 000 1 000 100 100 100 100 100 10 10 10 1 1 1 1 1 1 two 10 000s four 1 000s six 100s four 10s seven 1s 20 000 4 000 600 40 7 24 647

15. Through the representations of number discs, we can say that 24 647 is a large number. Another way to visualize a number is by using base-10 blocks.

16. 1 block = 1 000 1 flat = 100 1 long = 10 1 cube = 1

17. Using base-10 blocks, 2 247 can be represented as: two 1 000s two 100s four10s seven1s 2 000 + 200 + 40 + 7 = 2 247

18. C.a. Geronimo Files Let’s visualize 3 124 using both the number disc and the base-10 blocks Three 1 000s one 100s two 10s Four 1s Number Disc Base-10 blocks 3 000 100 20 4 1 000 100 10 1 1 000 1 000 10 1 1 1

19. Did you find it easy? Just remember how numbers can be represented.

20. What’s More ACTIVITY 1 - Use base-10 blocks to show the numbers below. 1. 2. 3. 1 573 4 690 2 417

21. ACTIVITY 2 - Fill in the data and give the number it represents. ______ 10 000s ______ 1 000s ___ 100s ___ 10s ___ 1s ________ ________ ________ ________ ________ ______________________ 10 000 1 000 100 10 1 10 000 10 000 10 000 1 000 1 000 100 100 100 100 10 10 10 10 10 10 10 1 1 1 1 1

22. . ________ + _______ + _______ + ______ = _______ . ________ + _______ + ______ + ______ = ________ 10 000 1 000 100 10 000 10 000 1 000 100 100 100 100 10 10 10 10 10 10 10 10

23. . ________ + _______ + _______ + ______ = _______ . ________ + _______ + ______ + ______ = ________

24. ACTIVITY 3 - Give the corresponding number for each statement. 35 blocks, 3 flats, 1 longs, 8 cubes = 49 blocks, 7 flats, 5 cubes = 15 blocks, 1 flat, 7 longs = 6 blocks, 9 longs, 1 cube = 100 blocks =

25. To check, go to page 10 for the Answer Key . Take time to review the discussion in the previous pages as needed.

26. What I Have Learned How can we visualize numbers up to 100 000? We can visualize numbers up to 100 000 by using representations such as number discs and base-10 blocks. We just need to know the place value of each digit in the numbers.

27. What I Can Do Melvin has 3 pieces of 10 000 number discs, 8 pieces of 1 000 number discs, 4 pieces of 100 number discs and 7 pieces of 10 number discs. Draw a model for this situation and tell how many number discs Melvin actually has. Karen is preparing her project in visualization of numbers. She prepared 5 blocks, 4 flats, 9 longs and 7 cubes. Give the value of each representation. What number is assigned to her? 5 blocks = _______ 4 flats = _______ 9 longs _______ 7 cubes = _______ Number ____________ Marcelito is assigned to represent 11 376 using number discs. How should he represent it? Illustrate it.

28. Assessment Fill in the needed data. (5 pts) _______ + ________ + ______ + ______ + _____ = _______ 10 000 1 000 100 10 1 10 000 10 000 10 000 10 000 1 000 100 100

29. Show 2 305 using base-10 blocks and number discs. (2 pts.) Give the total value of each of the following: 47 blocks, 9 flats, 0 long, 4 cubes 32 blocks, 5 flats, 1 long 86 blocks, 8 flats

30. Additional Activities The table shows the data of COVID-19 cases at the given period of time based on the report of the Department of Health (DOH).

31. Date No. of confirmed cases No. of recovered cases May 20, 2020 13,221 2,932 May 13, 2020 11,618 2,251 April 20, 2020 6,459 613 Represent the number of confirmed cases on May 13, 2020 using number discs. For the number of recovered cases on the same date, use base-10 blocks to represent the number. Think of a number between 10 001 to 100 000 that may represent a situation related to the COVID-19 pandemic. In order not to be infected with coronavirus, what can you do as a member of your community?