Free 10th Grade Simultaneous Equations - Elimination Method Lesson Plan

Topic: simultaneous equations - elimination method

Objectives & Outcomes

• To understand the elimination method for solving simultaneous equations.

Materials

• Pencils
• Paper
• Simultaneous equations worksheet

Warm-up

• Ask students to solve the following equation: 3x + 4 = 11
• Ask students to explain their solution strategy.
• Ask students if they have ever encountered a situation where they need to solve two or more equations at the same time.
• Ask for examples and discuss the challenge of solving multiple equations at the same time.

Direct Instruction

• Introduce the concept of simultaneous equations, and explain that the elimination method is one way of solving them.
• Show examples of how to use the elimination method to solve simultaneous equations, using the whiteboard or a handout.
• Explain the steps of the elimination method, including:
• Substitute one of the equations into the other to make one of the variables = 0
• Eliminate the second variable by adding or subtracting the two equations
• Solve for the remaining variable
• Provide additional examples for students to try themselves, using the 5E Model of instructions.

Guided Practice

• Give students a set of simultaneous equations to solve using the elimination method.
• Have students work in pairs to solve the equations, providing assistance as needed.
• Have students present their solutions to the class, using the 4C's of PLAR.
• Assessments
• Give students a set of simultaneous equations to solve on their own, using the elimination method.
• Have students solve the equations, providing assistance as needed.
• Have students present their solutions to the class, using the 4C's of PLAR.

Independent Practice

• Give students a set of simultaneous equations to solve using the elimination method.
• Have students solve the equations on their own, providing assistance as needed.
• Have students present their solutions to the class, using the 4C's of PLAR.

Closure

• Review the steps of the elimination method for solving simultaneous equations.
• Ask students to share their solutions with the class and explain their reasoning.
• Discuss the importance of being able to solve simultaneous equations in real-world situations.

Assessment:

• Observe students during the guided and independent practice to ensure they are able to solve the simultaneous equations.
• Collect and grade the solutions students created during guided and independent practice.
• Administer a quiz at a later date to assess students' understanding of the elimination method for solving simultaneous equations.