Lesson plan

Compare an algebraic solution to an arithmetic solution by identifying the sequence of operations used in each approach

teaches Common Core State Standards CCSS.Math.Content.7.EE.B.4a http://corestandards.org/Math/Content/7/EE/B/4/a
teaches Common Core State Standards CCSS.Math.Content.7.EE.B.4b http://corestandards.org/Math/Content/7/EE/B/4/b
teaches Common Core State Standards CCSS.Math.Practice.MP2 http://corestandards.org/Math/Practice/MP2
teaches Common Core State Standards CCSS.Math.Practice.MP3 http://corestandards.org/Math/Practice/MP3
teaches Common Core State Standards CCSS.Math.Practice.MP7 http://corestandards.org/Math/Practice/MP7
Quick assign

You have saved this lesson plan!

Here's where you can access your saved items.

Content placeholder

or to view additional materials

You'll gain access to interventions, extensions, task implementation guides, and more for this lesson plan.

Big Ideas: Many problems can be solved arithmetically or algebraically. An algebraic solution is simply a generalized arithmetic solution. This lesson builds on students' knowledge of solving real-world word problems with arithmetic, and writing and solving two-step equations. The task asks students to consider a statement about the size of a train set, evaluate it both arithmetically and algebraically, and then compare the two approaches. This builds toward students' future work in fluently solving real-world problems by choosing an appropriate strategy, as well as solving two-step inequalities, in grades 7 and 8. Vocabulary: algebraic solution, arithmetic solution Special Materials: none