Math 7A, Lesson 9, 4/22/2012

Weidong Post in Homework, Spring 2012, Teaching info
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Today we started the 2nd half of the Spring semester where we will go over new material that is not in the “Algebra I” text book. The material can be found under:

http://www.newtonchineseschool.org/teachers/wangweidong/SequenceSeries_Part1.pdf

http://www.newtonchineseschool.org/teachers/wangweidong/SequenceSeries_Part2.pdf

http://www.newtonchineseschool.org/teachers/wangweidong/SequenceSeries_Part3.pdf

We talked about arithmetic sequence where any two consecutive numbers in the sequence have the common difference. For an arithmetic sequence with the first term as a and the common difference as d, its nth term is:

      an = a + (n-1)d

As I was telling the students, it takes two parameters, the first term and the common difference, to uniquely identify an arithmetic sequence.

We did some in-class exercise in determining such parameters.

For homework, click the link below:

http://www.newtonchineseschool.org/teachers/wangweidong/HomeworkArithmeticSequence.pdf

 

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