Lesson Plan : Solving Equations and Inequalities Using Different Methods

 Teacher Name: L. Drake Grade: Grade 9-10 Subject: Math

 Topic: Equations and Inequalities can be solved algebraically,graphically, and numerically. Linear Relationships model real world situations. Content: Extrapolate a requested data point for a given scatter plot, determine the equation of a line, given two points on the line or the slope of a line and point of a line. Extrapolate requested data values from lines of best fit in scatter plots. Goals: Aim:Create scatter plot and draw an informal inference about any correlation between the variables. Use a graphing calculator to find an equation for the least squares line and use it to make predictions or estimates. Objectives: Students will learn to make a scatter plot. Students will be able to define what a scatter plot is. Students will formulate data and create a scatter plot. PA Standards 2.2C,2.8K,2.8L,2.8M,2.8P,2.8.8F Materials: Text:Holt Algebra 2 Book Page 37 Lesson 1.5, , Pacemaker Algebra 1 book page 215. Graphing Calculator. Introduction: Weekly Theme Review-Graphs Weekly Theme- Warm UP-Do Now Journal Entry 5-10 min Quick Warm Up -Inequalities Review 10-15 min Development: Activity-Students will formulate a graph using a x-axis and Strategy-Students will explore the concept of scatter plots, expand their knowledge of graphing coordinates, relate real world problems to the scatter plot process. y-axis graphing the coordinates A(1,400),B(3,300), C (6,150), D (8,50) Vocabulary-positive correlation, negative correlation, no reliable correlation, least squares line, scatter plot page 215 Pacemaker book, Algebra 2 Book copy examples of the correlations. Practice: Exercise 1,2 Algebra 2 book, Pacemaker book page 227 Try These Guided Practice Accommodations: Extended time,direct instruction, repeated directions, highlighter,Pacemaker Book. Checking For Understanding: Homework Review definitions, matching definitions, Compare/contrast using Venn diagram negative correlation positive correlation. Student Technology Guide-1.5 (Due Thursday) Closure: Review Correlations-positive,negative, scatter plots, graphing using calculator. Chapter Quiz 9,10 Pacemaker book Unit review number 1,2,3. Evaluation: Quiz-Definitions Identify the types of correlations. Graphing a scatter plot on graphing calculator. Creating a scatter plot after gathering data. Scatter plot group project Due November 2007 using data from sports, weather or other demographics. Teacher Reflections: Refer to Time line Schedule book.