Reflection: Rigor Perimeter, Area, and Combining Like Terms - Section 5: Closure and Ticket to Go

Many students were able to recognize that these figures had the same area, since they used the same blocks in a different formation.  There were a couple students who were able to figure out that the length of the one side was x - 1.  I had these students explain their reasoning to the class.  We combined like terms to create a perimeter expression and compared it with the perimeter expression for Figure A.  Students were able to see that the perimeter of Figure B is greater than the perimeter of Figure A.

Rigor: Perimeter of Figure B

Perimeter, Area, and Combining Like Terms

Unit 6: Expressions, Equations, & Inequalities
Lesson 14 of 20

Big Idea: What are similarities and differences between these figures? What expressions represent the perimeter and area of each figure? Students combine like terms and create expressions to represent the perimeter and area of figures created with algebra tiles.

Print Lesson
22 teachers like this lesson
Standards:
Subject(s):
Math, Algebra, Expressions (Algebra), combining like terms, algebra tiles, perimeter, 6th grade, area, master teacher project
50 minutes

Andrea Palmer

Similar Lessons

Determining Solutions
Big Idea: How can we prove equality? In this lesson students determine if a given number is a solution to an equation. Skill mastery is a focus.
Favorites(11)
Resources(20)
New Haven, CT
Environment: Urban

Solving Linear Systems of Equations with Substitution (Day 1 of 3)
Algebra I » Systems of Linear Equations
Big Idea: Students will understand the idea of substitution with symbolic and written comparisons.
Favorites(61)
Resources(22)
Washington, DC
Environment: Urban

Distributive Property
6th Grade Math » Properties of Math
Big Idea: Students will compare the distributive property to sending invitations at a birthday party.
Favorites(14)
Resources(13)
Brooklyn, NY
Environment: Urban