8th Grade Solving Inequality Of The First Degree In R Lesson Plan

Topic: Solving inequality of the first degree in R

Objectives & Outcomes

• Understand how to solve inequality of the first degree in R
• Be able to write and solve inequality of the first degree in R

Materials

• Computer with R installed
• Access to internet for research
• Handouts with examples and exercises

Warm-up

• Ask the students to name some inequalities they have encountered in their everyday life. E.g. "The price of the shirt is less than $20" or "The length of the road is shorter than 5 kilometers."
• Ask the students to explain how they could solve these inequalities.
• Write the following example on the board: "x+2>5", and ask the students to explain how they would solve it.

Direct Instruction

• Define what an inequality is and give some examples. E.g. "An inequality is a statement that says that one quantity is not equal to another quantity. An inequality can also be represented by <, >, or < or > symbol."
• Explain how to solve an inequality of the first degree in R. E.g. "To solve an inequality of the first degree in R, we use the following steps:
• 1. Isolate the variable on one side of the inequality by adding or subtracting to both sides of the inequality.
• 2. Use the inequality symbols <, >, or < or > to determine the type of the inequality and solve it.
• 3. Check the solution by substituting the variable with the number on the other side of the inequality."
• Write the inequality "x+2>5" on the board and demonstrate how to solve it using the steps above.

Guided Practice

• Give students a few inequality problems to solve using the steps above.
• Monitor the students as they work and provide assistance as needed.

Independent Practice

• Have students work on a set of inequality problems on their own.
• Encourage them to use the steps outlined above to solve the problems.
• Monitor the students and provide assistance as needed.

Closure

• Review the steps to solving inequality of the first degree in R.
• Ask students to share any challenges or successes they had while solving the problems.
• Encourage them to ask for help if they get stuck.

Assessment

• Observe students during independent practice to see if they are accurately solving the problems and demonstrating understanding of the process.
• Collect and review their solutions to the problem-solving questions.
• Administer a quiz to assess student understanding of solving inequality of the first degree in R.