This worksheet is designed to help students with calculating partial sums of arithmetic sequences.
I start out class with the student notes page, which has several examples of what today's lesson will be about. Once we finish doing the notes together, I have them get to work within their groups on this worksheet.
I use this activity within cooperative groups, and I circulate to make sure they are getting the purpose of the questions.
The file includes spiral review problems. Note: When I teach my students to complete the square, I use a symbol I've named the "Gretel," representing the idea that you take half of the coefficient of the linear term and square it; I call it the "Gretel" in reference to the children's story in which Hansel and Gretel leave breadcrumbs along the way. The idea is that half the coefficient of the linear term comes in really handy when it's time to factor the perfect square trinomial!
This worksheet is intended to be written on directly.
Please download the pdf preview file first, so you can see exactly what's included; the product file is a word document, which you may personalize for your students.