Linear+Regression+Investigation


 * The Hand Squeeze **

Rachel Cathcart, Veronica Glasgow, Chris Hudson, Katelyn Pierce
 * TEACHER CANDIDATE: **

9th Grade Precalculus
 * GRADE LEVEL & SUBJECT: **

A1.1.A Select and justify functions and equations to model and solve problems.
 * LEARNING TARGETS: **

A1.4.C Identify and interpret the slope and intercepts of a linear function. A student will be able to explain what a regression line is and what it is used for. A student will be able to intrepret what the slope represents and describe the slope with correct units.

The students will show that they understand the material by producing a line in slope-intercept form (y=mx+b) that represents our data. Also, our students will be able to explain in writing what the slope represents (including an explanation of units).
 * ASSESSMENT STRATEGIES: **

For this activity, we will start with the entire class standing in a circle holding hands (≈16 students). We will then take four students out and repeat the activity (≈12 students). We will then take another four students out and repeat the activity (≈8 students). We will then group the entire class back together and break into three groups (≈6, 5, 4 students). After the final trial has been recorded, all students will return to their seats for the rest of the lesson.
 * GROUPING OF STUDENTS FOR INSTRUCTION: **

For this activity, we will need calculators for each group of students, three stopwatches, and a projector for calculator.
 * INSTRUCTIONAL MATERIALS, EQUIPMENT, AND TECHNOLOGY NEEDED: **

Before we begin this lesson, our students must have some prior background knowledge and skills. Our students will need to know how to calculate slope, the slope intercept form of an equation (y=mx+b), and how to use a calculator for graphing.
 * PRIOR KNOWLEDGE AND SKILS: **

Our students will be able to complete a linear regression line for a set of data points. They will also be able to calculate the percent yield for their predicted and experimental data.
 * LEARNING EXPERIENCES: **

Lanius, C. (2008). //The hand squeeze//. Retreived from [|http://math.rice.edu/~lanius/Algebra/hndsq.html]
 * Refereneces: **

Lesson Plan Worksheet