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Title - Understanding domain and range values between theoretical and practical linear functions.
By - Daniel Bynum
Primary Subject - Math - Algebra I
Grade Level - 9th
TEKS / TAKS Objectives: 111.32.c.1.B
Lesson Objective:
Understanding the domain and range values for various linear functions.
Anticipatory Set:
Warm-up problems in which the students will determine the domain and range for several linear equations.
Input Procedures:
Read a linear word problem and then determine an equation for that problem (The equation should be the same as the last warm-up problem). Now, discuss with the class what they think the domain and range should be, based on the wording of the problem. How does the domain and range of the warm-up compare to the domain and range of the word problem?
Checking for Understanding:
Class discussion lead by instructor.
Guided Practice:
Several more similar problems on the board. Have various students help with solution.
Independent Practice:
In small groups, the students will continue to solve for the domain and range of various equations and word problems.
Closure:
After guided practice re-explain the difference between domain and range values of theoretical equations and real life word problems.
Assessment:
Done throughout the lesson and especially during independent practice. Help facilitate small group discussions if needed.
Re-teach:
Graphing specific functions to reinforce visual, auditory, and kinesthetic learners.
Enrichment / Extension:
Have students explore linear relationships between two things in their life and determine an equation, the domain, and the range.
Modification(s):
Follow specific IEPs.
Materials:
Problems from book or off of a worksheet.
E-Mail Daniel Bynum!
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