The document discusses sets and how to determine if a set is well-defined. It defines a set as a collection of distinct objects and notes that a well-defined set has determinable elements while a not well-defined set has ambiguous elements. Examples of well-defined sets include sets of numbers, letters, and colors, while examples of not well-defined sets include sets of large numbers, nice people, and good writers. Activities are provided for learners to identify well-defined and not well-defined sets and organize real-world examples into sets.
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Introduction to Sets and Set Operations. The presentation include contents of a KWLH Chart, Essential Questions, and Self-Assessment Questions. With exploration and formative assessments.
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For more information, visit-www.vavaclasses.com
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7. OBJECTIVES!!!
At the end of the lesson, the learners will be
able to:
1.identify a well-defined set;
2.present elements of a set; and
3. organize objects with the same sets.
17. collection or group of objects.
ILLUSTRATIVE
EXAMPLES
Set of Filipino dishes
18. In mathematics, set is a well-defined group or
collection of objects that share common
characteristics. The objects contained in the set
are called elements.
19. In general, a set is a collection of distinct objects.
Because a set is only a collection of objects, it
could be well-defined or not. A well-defined set is
a set with determinable elements. On the other
hand, a not well-defined set has ambiguous
elements.
20. A set can be named using capital letters like A,
B, C, D,…Z and we use braces { } to group the
elements of set separated by commas.
If a set contains many elements, we often use
three dots, …, called ellipsis.
23. NOT WELL-DEFINED SETS
ILLUSTRATIVE EXAMPLES
1. The set of all large numbers.
2. The set of nice people in your class.
3. The set of good writers.
24. A = {letters in the word
GAMES}
Well-defined
PRACTICE!
25. B = {best restaurants in the country}
Not Well-defined
PRACTICE!
26. H = {most powerful heroes}
Not Well-defined
PRACTICE!
27. C = {numbers in a 12-hour
clock}
Well-defined
PRACTICE!
28. M = {months with only 30
days}
Well-defined
PRACTICE!
29. K = {kindest people in the world}
Not Well-defined
PRACTICE!
30. T = {top 3 most influential brands}
Not Well-defined
PRACTICE!
31. O = {odd numbers between 0
and 20}
Well-defined
PRACTICE!
32. ACTIVITY 3
LOOK AROUND YOU!
Look around you. Observe and give 2
examples of well-defined sets and at
least 3 elements of the same set. Write
your answers in our chat box.
33. Determine whether each of the following sets is Well-
Defined or NOT.
https://forms.gle/BsHwgXAvJsSML5EK7
34. Take a picture of your closet by organizing things
according to its set and send it to my email
(kennethgeorge.fernandez@deped.gov.ph)
