CCSS.Math.Content.6.EE.C.9

Lessons for this standard

Perpendicular lines
nrich maths 
Updated: 
2016
4 Comments
  • Expressions and Equations
  • Middle School
Common Core
<p>Position the lines so that they are perpendicular to each other. What can you say about the equations of perpendicular lines?</p>...
FREE - Full year of teaching materials aligned with Khan Academy Middle School Math (6-8)
  • Multiple Subjects
  • Middle School
Common Core
Great for distance learning! Complement your use of Khan Academy with 440 mini-lessons that are aligned with the Khan Academy missions for 6th Grade...
Building Algebraic Expressions
  • Expressions and Equations
  • Middle School
Common Core
The big ideas for this lesson are that many real-world scenarios involve 2 things changing—called VARIABLES—and that independent variables cause the...