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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