Line is one of the 7 elements of art. Even though I usually do activities with my classes that incorporate the elements into the project we are doing, sometimes I will concentrate on a particular element.
In this case,as you can see we are doing lines.
We discussed beforehand many of the different lines there ar and I then gave the children (first graders in this case) a choice of 2 pieces of construction paper.
and then had to collage them onto the other color paper they chose in the beginning,
For a simple activity highlighting the concept of line, this one went over very well.