We focus on Arithmetic sequences. An arithmetic sequence is a sequence where the difference between any two consecutive terms is always the same. We usually use d to represent this common difference.

So for an arithmetic sequence whose first term is a and whose common difference is d, its nth term is:

an  = a + (n-1)d

Keep in mind that the complete sequence of an arithmetic sequence is determined by a particular term and the common difference.

We did a bunch of exercises in the classroom.

Homework: Workbook Page 4, #21, #22, #26, #27 and the following:

http://blog.newtonchineseschool.org/wangweidong/files/2014/09/HomeworkArithmeticSequence.pdf