Previously we talked about lines. Lines in math are always straight.
When you draw a line, it has no end points.
When you draw a line segment it has 2 end points, which are labeled with capital letters (e.g. AB).
When we draw a ray we draw a line with one end point.
Look at the picture on the right for the examples.
Remember we always label points with capital letters and lines with lowercase letters.
We also talked about perpendicular and parallel lines. Remember the song?:
And don't forget to always draw with a pencil and your protractor triangle!