Presentation 
Set
 Explain to the students that historically the Plains Cree, Sioux, and Blackfoot parfleche bags were used to carry dried food, medicine, and personal items. A single piece of rawhide was folded into a case and tied shut with rawhide laces. The outside of a parfleche bag was decorated.
 Provide the students with a variety of visual sources for designs.
 Provide the students with many examples of traditional Plainsstyledesigns as a source of inspiration for their own.
Development
 Ask the students to look at the geometric shapes in the parfleche and create a pictograph. Let them know a pictograph includes: categories, title, legend, and labels that display the data using manytoone correspondence. When the students have completed their pictograph, they must justify the choice of correspondence in which they have used their pictograph. For example, the students might use color or shape or some other attribute for the categories.
 Next, have the students create a bar graph that displays the same data using a manytoone correspondence. The bar graph should include axes and a title. Again, the students should justify the choice of correspondence in which they have used their bar graph.
 Have the students break off into groups of two. Have each student take turns asking the other students questions (to which the answers can be found on the bar graph). If the students are having difficulties in asking questions, an alternative is to replicate a bar graph on the white board for all students to see and ask the students questions that are answered through referencing the bar graph.
