One Step Equations Review - Relay Race!

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Objective

Students will be able to solve a one step equation using inverse operations AND check their work.

Big Idea

Keep practicing those inverse operations! Soon we will be adding another step :)

Lesson Author

Heather Stephan

Elon, NC

Grade Level

Seventh grade

Subjects

Math

Algebra

Standards

7.EE.B.3

Solve multi-step real-life and mathematical problems posed with positive and negative rational numbers in any form (whole numbers, fractions, and decimals), using tools strategically. Apply properties of operations as strategies to calculate with numbers in any form; convert between forms as appropriate; and assess the reasonableness of answers using mental computation and estimation strategies. For example: If a woman making $25 an hour gets a 10% raise, she will make an additional 1/10 of her salary an hour, or $2.50, for a new salary of $27.50. If you want to place a towel bar 9 3/4 inches long in the center of a door that is 27 1/2 inches wide, you will need to place the bar about 9 inches from each edge; this estimate can be used as a check on the exact computation.

MP1

Make sense of problems and persevere in solving them.

MP3

Construct viable arguments and critique the reasoning of others.

MP5

Use appropriate tools strategically.

MP6

Attend to precision.

Launch

10 minutes

Opener: As students enter the room, they will immediately pick up and begin working on the opener – Instructional Strategy - Process for openers. This method of working and going over the opener lends itself to allow students to construct viable arguments and critique the reasoning of others, which is mathematical practice 3.

Learning Target: After completion of the opener, I will address the day’s learning targets to the students. For today's lesson, the intended target is “I can use inverse operations to solve a one-step equation.” Students will jot the learning target down in their agendas (our version of a student planner, there is a place to write the learning target for every day).

Explore

45 minutes

Relay Race

Student Work

Relay Race: Instructional Strategy - Relay RaceIn this activity, students will be working with their table groups, persevering through problems and reasoning with one another (mathematical practice 1 and 3) until they can get the same answers I got - or prove me wrong! The problems in the relay race require that students pay close attention to signs and steps, and students should check their work with available tools! (mathematical practices 5 and 6).