
Activity 1.1 Introduction to Sets
Group the objects shown in the applet. You can create up to five groups. Write the criteria or rule you used for each on a piece of paper. Then, exchange papers with your partner and have them assign the objects to each group using the rule you wrote by dragging the objects.
Activity 2.1 Union and Intersection of Sets
Sets A, B and C belong to one universal set, set U. The following sets are defined as:[br][br]A={1,2,3,4,5,6,7,8,9,10}. [br]B= even numbers from 2 to 30[br]C= multiples of 3 greater than 0 but less than or equal to 30[br][br]Using the GeoGebra applet, check if a certain number is an element of sets D,E,H, and I. Then, define these sets and their relationship with sets A, B and C
Activity 3.1 Set Difference and Complement of Sets
Sets A, B and C belong to one universal set, set U. The following sets are defined as:[br][br]U= {1,2,3,4,5,6,7,8,9,10,2,3,5,6,7,8}[br]A= {2,3,5,6,7,8}[br]B= {1,3,5,7,9}[br]C= {3,5,7}[br][br]Using the GeoGebra applet, check if a certain number is an element of sets D,E,F, and G. Then, define these sets and their relationship with sets U, A, B and C.[br]
Activity 4.1 Sets and Venn Diagram
Using the GeoGebra applet, shade the area in each Venn diagram to represent the given sets for each case. Click the region or area of the Venn diagram that you want to shade.







Activity 5.1 Cardinality of Sets
The Grade 7 PE coordinator surveyed her students to determine their preferences for after-school activities. The teacher provided four options: basketball, swimming, table tennis, and Philippine games.[br][br]Let [br]U= set of all the Grade 7 students surveyed[br]B= set of students who wanted basketball as their after school activity[br]S= set of students who wanted swimming as their after school activity[br]T= set of students who wanted table tennis as their after school activity[br]P= set of students who wanted Philippine games as their after school activity[br][br]Using the Venn diagram below, which shows the relationships of the set as well as the cardinality of each region of the Venn diagram, identify a unique set that will have the following cardinalities. (e.g. set of students who chose basketball but not swimming)[br]
[size=150]n( ______ ) = 20[/size]
[size=150]n( ______ ) = 78[/size]
[size=150]n( ______ ) = 118[/size]
[size=150]n( ______ ) = 100[/size]
[size=150]n( ______ ) = 138[/size]
Activity 6.1 Subsets of Real Numbers: Set of Natural Numbers, Set of Whole Numbers, Integers and Rational Numbers
Generate five random numbers using the GeoGebra applet. Identify if the number is an element of the sets beside the check box. Click the checkbox beside the set if the number belongs to that set. After answering each number, fill out the worksheet, check your score and record it. [br][br]Let the set of rational numbers be the universal set. [br]