Define collinear, coplanar, parallel, perpendicular and skew.
Present how to use symbols to indicate parallel (ex 
ǀǀ 
) and perpendicular relationships (ex 
).
Provide examples that allow practice identifying the new terms.
This packet should help a learner seeking to understand the definitions of collinear, coplanar, parallel, skew and perpendicular and their relationship to points, lines and planes.
Sophia college courses cost up to 80% less than traditional courses*. Start a free trial now.
This video provides an introduction to the ways in which two lines that exist entirely in the same plane (coplanar lines) can interact.
Source: Paul on Guaranteach
This video explains the concept of parallel lines and the notation used to indicate that two lines are parallel.
Source: Paul on Guaranteach
This video introduces the concept of perpendicular lines and how they are notated.
Source: JasmineWanek on Guaranteach
