Reflection: Connection to Prior Knowledge Equations in Geometry - Section 2: Beginning the New Activity


This activity was a good vocabulary and notation review for my students.  We discussed during student presentations what it meant to be complimentary and supplementary angles because most of my students had forgotten the vocabulary.  We also used the opportunity to discuss notation for naming angles and figures such as triangles.  The equations were simple for most students to create especially my visual students who sometime struggle with the abstractness of word problems.  The visual students excelled at understanding why the expressions added together are equivalent to 90 or 180 degrees.  The fractions were by far the hardest part of the equations.  I admit I went a little overboard on a few of the fractions especially with ones that included three different fractions each with different denominators.  I really wanted to ht the fractions with this activity since it falls at the end of the unit and working with equations should be mastered by now.  I try to use fractions more now than I used to because it has been proven to be a big factor in whether or not a student excels or struggles in math.  If you feel the fraction are too much for your students you could easily adjust the level of difficulty by changing the coefficients to integers.  

  Connection to Prior Knowledge: Design - Connection to Prior Knowledge
Loading resource...

Equations in Geometry

Unit 3: Solving Linear Equations in One Variable
Lesson 20 of 29

Objective: Students will be able to apply equations to solve basic geometry problems involving expressions by using properties of geometry learned in previous grades.

Big Idea: Give context to multi-step equations while also reviewing basic geometry properties of two dimensional figures - it's a two-fer!

  Print Lesson
1 teacher likes this lesson
Math, solving equations, Algebra, Geometry, 8th grade math, aglebra, master teacher, application of equations
  50 minutes
equations in geometry lesson image
Similar Lessons
Addition and Subtraction One Step Equations
Algebra I » Linear Equations
Big Idea: Students will formalize their understanding of the algebraic properties of equality by solving equations using addition and subtraction.
Washington, DC
Environment: Urban
Noelani Davis
Mixture Problems
Algebra I » Functions and Modeling
Big Idea: Mixture problems are hard, but there are a lot of places they can fit in an Algebra 1 curriculum, so they're the perfect lens for review as the year comes to a close.
Worcester, MA
Environment: Urban
James Dunseith
Super Practice with Angles and Algebra - Feedback Session
8th Grade Math » Lines, Angles, and Algebraic Reasoning
Big Idea: Students can better understand a topic when they compare strategies and learn from each other's ideas.
New York, NY
Environment: Urban
Shaun Errichiello
Something went wrong. See details for more info
Nothing to upload