# Grade 10 Algebra II Lesson Plan

1. Teacher objective(s)

The students will solve systems of equations
by using the elimination method

with addition, subtraction, and multiplication.

2. Instructional Activities:

The teacher will ask the students, “What is
meant by the process of elimination?”

The students will provide hypothetical
situations in which the process of

elimination might be used as a problem- solving tool .

The students will solve systems of equations
by using the elimination method

with addition, subtraction and multiplication . The teacher will ask the
students,

“What is meant by the process of elimination?” The students will provide

hypothetical situations in which the process of elimination might be used as a

problem-solving tool. When solving a system of equation by elimination, arrange

each equation in standard form, Ax + By = C, if the coefficient of x (or y) are
the

same number , use subtraction to eliminate the variable . If the coefficient of x
(or y)

are different , multiply one or both equations by constants so that the
coefficients

of x (or y) are the same or opposite numbers. Next, the students will use the

preceding statements or steps to eliminate the variable. Furthermore, they will
use

substitution to solve for the remaining variable.

The students will write in outline form the
steps to follow when solving a system

of equations by the elimination method.

The teacher will have the students do the
activity in pairs. One partner can do step

1 while the other partner does step 2. The partners can then compare their
results .

The students will solve a system of two
linear equations using multiplication and

addition. After they have solve the equations they will check their solutions by

substituting the values for x and y .

The teacher will hand out worksheet for class
work and will do two examples

from the work sheet before the class start their work.

The teacher will assign homework just before
the class session ends on linear

equations using multiplication with addition .

Students whose class
work and/or homework indicate that additional help is

required will be assigned a reteaching worksheet during the next lesson period
for

before or after school remedial help.

3. Materials and Resources

Algebra I textbooks .

Worksheets on solving equations by elimination.

Worksheet on reteaching.

White board.

Dry erase markers.

4. Assessment

Observations of the Activity

Classroom work on practice

Classroom Discussion (on elimination)

Homework page 479 – exercise 15-18

Remedial – Worksheet reteaching

Biweekly Test

Homework

Use elimination to solve each system of equations.

Reteaching

Solve systems of linear equations by elimination.

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