ALEX Lesson Plans Subject: Mathematics (9 - 12) Title: Parent Functions and Their Children Description: In this lesson, students will be able to identify parent functions of linear functions, absolute value functions, and quadratic functions.  Students will be presented with functions and asked to graph them by first identifying the basic curve and then using transformations. The transformations that will be highlighted in this lesson are translation and reflection.  These activities will be done in teams of four students.Subject: Mathematics (9 - 12), or Technology Education (9 - 12) Title: Investigating Parabolas in Standard Form Description: Students explore the coefficients of a quadratic function using a graphing calculator. This is an inquiry lesson to be used as an introduction to translations and dilations of functions.This lesson plan was created as a result of the Girls Engaged in Math and Science, GEMS Project funded by the Malone Family Foundation.Subject: Mathematics (9 - 12) Title: Exponential Growth and Decay Description: This lesson on exponential growth and decay involves a variety of teaching resources. There are a variety of websites used to teach and reinforce how to identify exponential growth or decay and how to solve problems relating to growth and decay. There is a lab provided that will help model these concepts being taught and computer based practice on these concepts. Videos are provided that give a picture image of how exponential growth and decay works. This lesson plan was created as a result of the Girls Engaged in Math and Science, GEMS Project funded by the Malone Family Foundation. Thinkfinity Lesson Plans Subject: MathematicsTitle: Exact Ratio      Add Bookmark Description: This reproducible activity sheet, from an Illuminations lesson, features a series of questions pertaining to exact ratios and geometric sequences. In the lesson, students measure lengths on stringed musical instruments and discuss how the placement of frets on a fretted instrument is determined by a geometric sequence.Thinkfinity Partner: IlluminationsGrade Span: 9,10,11,12Subject: Mathematics,ScienceTitle: Do You Hear What I Hear?      Add Bookmark Description: In this lesson, from Illuminations, students explore the dynamics of a sound wave. Students use an interactive Java applet to view the effects of changing the initial string displacement and the initial tension.Thinkfinity Partner: IlluminationsGrade Span: 9,10,11,12