Algebra II Lesson Plan: Functions and Their Graphs

Algebra I Functions and Graphs 55 minutes
Line or Curve of Best Fit Lesson #2: Functions and their Graphs

Context
The students need to recall the previous day's material on what makes a relation a function and what the domain and range of relations are.
Objectives
1. The students should be able to identify the parts of a graph (x-coor., y-coor., ordered pair, independent/dependent variables).
2. The students should be able to graph several different basic linear functions.
Connections
MA-HS-5.3.3
Students will model, solve and graph first degree, two-variable equations and inequalities in real-world and mathematical problems.

Assessment Plan
Objective Number Type of Assessment Description of Assessment Depth of Knowledge Level Adaptations and/or Accommodations
1. Formative The students had a reading assignment the previous day, so I will randomly choose a few students to go to the board (after a brief explanation of the material they read the night before) and label the parts of the graph or to sit at their seat and answer a question (ex: What is an ordered pair and what number is the x-coordinate?) DOK I I will try and involve one of the GSSP students if they seem to really understand this material so that the students can see the correct way to label the parts of a graph.
2. In-Class Assignment The students will draw a slip of paper out of a hat and on each piece of paper will be a different linear equation for each student to graph. For at least two points on their graphs, the students must label the points with correct form of the ordered pair. Every student(or however many the class time will allow) will go to the board and write their equation and graph up there, and label the x- and y- axis'. I will then ask each student questions about their graphs in order for the whole class to see how the process of creating a graph from a linear equation works. DOK II I will give additional, individual instruction, if needed, to the IEP student.

Resources, Media, and Technology
25 slips of paper with linear equations written on them
Graphing Calculator

Procedures
I will start the class by calling on individual students to answer questions from the previous day's material on domain and range and what functions are. I will use prompts and cues to get some form of a correct answer out of the students who are hesitant to speak up or are still a little confused. Then I will proceed into today's lesson by giving a brief explanation of the terms the students read about the night before. I then will call on a few students to answer a few quick questions or go to the board to define the parts of a graph. If a student is not sure on an answer, I will either try or lead them to the answer by talking them through it, or I will open up the question for the rest of the class to help out with. I will then go into explaining to the class how to graph equations of two variables. I will explain to them that this is where they will need to apply the concepts of domain and range. Then I will do a couple of examples on the board myself to demonstrate the process and how it works. Next, I will do a couple more examples on the board but I will call on students to lead me through the process. Finally, I will do the assessment #2 with the class. As always, I will be moving around the room to see where my assistance may be needed. The rest of the class time will be devoted to the students writing there answers on the board and helping me explain them to the rest of the class.