
G8. CLS8_9.1-9.2 : Sequences and functions
Presentation
•
Mathematics
•
8th Grade
•
Easy
Ama Atiby
Used 3+ times
FREE Resource
17 Slides • 23 Questions
1
Warming Up Activity (WUA)
Introduction to sequences
Ms. Fatmawati, S.Si., M.Ed., Gr.
2
Open Ended
Describe the rule of the following sequence...
0, 13, 26, 39, ...
3
Multiple Choice
The next term in the sequence 0, 13, 26, 39, ...
4
Open Ended
Describe the rule of the following sequence...
1.0, 1.3, 1.6, 1.9, ...
5
Multiple Choice
The next THREE terms in the sequence 1.0, 1.3, 1.6, 1.9 are ...
6
Lower Secondary Mathematics
Chapter 9:
Sequences and functions
Ms. Fatmawati, S.Si., M.Ed., Gr.
7
9.1 Generating sequences
8
9.1 Generating sequences
Sequences Vocabulary
Sequence - an ordered list of numbers -
Term - each number in a sequence arithmetic sequence - each term is found by adding the same number to the previous term.
9
11
12
Multiple Choice
0.3, 0.9, 1.2, 1.5, ...
A pattern of numbers like this is called:
sequence
session
sentence
13
Multiple Choice
The term-to-term rule of a sequence is
divide by 2 and then add 3.
The first term is 8.
Which if these numbers is not a term in this sequence?
7.5
7
6.5
14
Math Response
Enter the next term in this sequence.
25, 26.5, 28, 29.5,
15
Math Response
The first term in a sequence is 3.
Each term is 0.5 less than the one before.
What would be the second term?
16
Multiple Choice
The term-to-term rule of a sequence is
multiply by 3 and then subtract 4.
The first term is 3. What would be the next two terms?
17
Multiple Choice
Enter numbers to complete the missing terms of this sequence.
1
2
3
4
18
Multiple Choice
Find the first two terms of the sequence
6,9, 10.3, 23.7
19
Fill in the Blanks
Type answer...
Type answer...
Type answer...
Type answer...
20
Multiple Choice
Write the first three terms of each of these sequences.
first term is 8
term-to-term rule is: multiply by 2 then subtract 5
21
Multiple Choice
Write the first three terms of each of these sequences.
The first term is 15, term-to-term rule is: subtract 9 then multiply by 3
22
Multiple Choice
Write the first three terms of each of these sequences.
The first term is 12, term-to-term rule is: divide by 2 then add 5
23
Multiple Choice
The first three terms of a sequence are 8, 10, 14, …
Find the correct term-to-term rule
multiply by 3 then subtract 14
divide by 2 then add 6
subtract 3 then multiply by 2
subtract 2 then multiply by 3
24
Conclusion
Surely, Now i can ....
generate increasing and decreasing linear sequences.
can find the term-to-term rule.
25
9.2 Finding rules for sequences
26
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This pattern is made from blue squares.
Write the sequence of the numbers of squares.
Write the term-to-term rule.
Draw the next pattern in the sequence.
Explain how the sequence is formed.
Work out the position-to-term rule.
29
Students practice from coursebook page: 207-208
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33
Draw
Write down your answer!
34
Multiple Choice
The multiples of which number should be used to find the position-to-term rule?
3
4
5
6
35
Multiple Choice
What is the term-to-term rule for this pattern?
add 4
add 3
add 2
add 1
36
Fill in the Blanks
37
Multiple Choice
Write down your answer!
38
Multiple Choice
The rule linking the position to the term is:
multiply the position by 2 to find the term.
add 2 to the position to find the term.
square the position and then add 1 to find the term.
none of the above.
39
Draw
Write down your answer!
40
Conclusion
Surely, Now i can ....
find the position-to-term rule.
Warming Up Activity (WUA)
Introduction to sequences
Ms. Fatmawati, S.Si., M.Ed., Gr.
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