This is a color set of 16 full page Language Pictures with photographs of things that are either blue, square shaped or have four items (or a combination of all three concepts). They can be used during individual or group activities to encourage vocabulary development and to stimulate discussion. They can also be used in a variety of Learning Centers (e.g. Blocks, Writing Center, Dramatic Play, Art and Science). Laminate the sheets to use them over and over again. The entire unit of Curriculum Materials for Blue Square Four includes this set of Language Pictures along with an activity plan, learning center planning sheet and many other materials to teach the concepts of blue, square and the number four.