Pattern is a favorite element of mine and I require my students to apply it often in their assignments so I broke down the basics to start this unit with my art one students. It has served me well to teach the concept early and require it throughout the four years I have many of my talented students.
This is the vocabulary/worksheet I use to lecture about Pattern. I like breaking down the six types of patterns described in most of the classroom texts I've used. The six types of patterns include Random Patterns and the five types of Planned Patterns which include (1) Rows, (2) Grids, (3) Radial, (4) Alternating and (5) Half Drop.
I then require my students to create the six types of patterns on 2 1/2" x 2 1/2" squares using their colored pencils. They must create a set of six using one, repeated image such as a star, heart, flower, skull or any symbol or image they prefer.