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Linear Function Match c
Connect the Navigator computer to a data projector or Smart Board. Students will write functions to match the teacher graphs.
Teacher: Begin Class and using a calculator, Log In as Teacher
Students: Log In to Class
Teacher: Open Activity Center
Go to File, Load, Load Activity Settings and select Activity Fcn Match 5
Start Activity
Students: Enter Activity Center
Student (and Teacher) calculators will display: Y1=
Y2=
Y3=
Y4=
Y5=
Teacher: From the teacher calculator type Y1= 2x + 4 and Send.
Allow students a moment to view the graph (handsketch the graph). Then from the computer:
Pause Activity
Extensions Quick Poll
Poll Prompt
Submit Open Response question(s) similar to:
Describe some characteristic(s) of this function.
What is the domain of the function?
What is the range of the function?
What can you say about the slope?
Identify any intercepts.
Remind students that they may need to Alpha Lock in order to type what they intend and that they have a maximum of 20 characters be brief. Ask students to Send their responses.
After each Quick Poll question, select Stop Poll. Look at Poll Summary and discuss student responses.
Exit Quick Poll and Resume Activity.
Students: Write a function in Y1 to match the graph on the screen. Students may resubmit the function until they find a match.
Teacher: After students have matched the function, from the teacher calculator type:
Y2= 3x + 4 Y3= x + 4
Ask students to quickly sketch the graphs (graphs may not be totally visible when Quick Poll is open).
From the computer:
Pause Activity
Extensions Quick Poll
Poll Prompt
Submit Open Response question(s) similar to:
How are the three functions the same or different?
How are these functions the same or different from functions in Linear Function Match 5a and 5b?
Select Stop Poll. Look at Poll Summary and discuss student responses to each question.
Exit Quick Poll and Resume Activity.
Students: Write functions in Y2 and Y3 to match the other teacher graphs on the screen.
Teacher: When students have matched the functions, Pause Activity and ask students to write functions in Y4 and Y5 that will be visible on the screen and have the same yintercept as the three teacher functions.
Resume Activity
After student submissions, Pause Activity and discuss any surprises they encountered and how they dealt with them.
Stop Activity
Edit
Clear Activity Data
Reflect
Ask students to write a reflection on the mathematics of this exploration, use this as either a journal or notebook entry or as an exit slip. Discuss yintercepts and positioning of the lines. Which number(s) control the characteristics of a line?
Important Housekeeping Notes: The screen will become cluttered with student submissions and resubmissions. Use the computer to delete some incorrect submissions:
Select the graph to delete
Delete
Enter
An alternative way to manage the clutter is clear all activity data:
Stop Activity
Edit
Clear Activity Data
Start Activity
Retype the teacher equations.
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