In some situations, changing the same thing in the same way usually has the same result. Shapes, such as circles, squares, and triangles, can be used to describe many things that can be seen. Some events can be predicted well and some cannot. Sometimes people aren't sure what will happen because they don't know everything that might be causing an effect. Often a person can find out about a group of things by studying just a few of them.
Primary students explore leaves of trees as they go on a school yard walk.
They match leaves with geometric shapes, go on a leaf hunt to compare leaves of different trees, work at centers with representational materials, and make a leaf book. The proficiencies on this page were developed by the Indiana Department of Education from the Benchmarks for Science Literacy .