More Lessons Like This...
Random Five More New
Grade: Middle
Subject: Mathematics

#3455. Solving literal equations

Mathematics, level: Middle
Posted Sat Apr 23 19:42:08 PDT 2005 by Shannon Smalley (
Randolph-Macon Woman's College, Lynchburg, VA, USA
Materials Required: Starboard, help-cards, stickers, prizes, chalkboard, calculators
Activity Time: 30 minutes
Concepts Taught: multi-variable equations

Lesson Plan: Literal Equations and Formulas
Ability Level: 9th grade mixed ability. Behavior issues exist.
Model: Direct Instruction.

Rationale: You can solve an equation such as I=Prt for any of its variables, so you need to learn only one model for most real-life relationships.
Goal: Students will learn how to solve literal equations, especially formulas, for a specified variable.
Objective: The student will solve multi-step linear equations and inequalities in one variable, solve literal equations (formulas) for a given variable, and apply these skills to solve practical problems. Graphing calculators will be used to confirm algebraic solutions. (SOL A.1)
Introduce students to the Problem of the Day. This will be on a section of the board throughout the lesson, and when students complete an assignment early, they may work on the problem of the day.
Next, introduce students to their help-cards. Students will put these cards face up when they have a question. Tell them that if I notice some positive behavior, I will put a sticker on their help-card. If a student has 5 stickers at the end of the lesson, they will get a prize. However, I can put an X through the sticker if I notice the student behaving poorly.
Next, begin the warm-up exercises.
Begin by defining Literal Equations.
Work 2-3 examples on the board, asking and taking questions. Call on students by name to keep them engaged.
Guided Practice: Use the Starboard to do the guided practice as oral exercises.
Cooperative learning activity: students will work with a partner on a two-part question. (Jenny and Ashley will work together).
Independent practice: Students will have a worksheet to start and the end of class and finish as homework.
Closure: Ask for students attention. Do a short recap of the lesson: i.e. ask students what a literal equation is. Then ask if anybody solved the Problem of the Day. Give a prize to anybody who solved it. Next, count up stickers on the help-cards and give prizes to those who received more than 5.
Time Required: 30 minutes
Materials/Technology: Starboard, prizes, worksheets, help-cards and stickers, white/black-board, calculator
Assessment: Participation in discussion, cooperative learning assignment, independent practice assignment.
Homework: Independent practice worksheet.