Below are examples of student work from grades: two, four, six and at the high school level. The Marshmallow Peeps task that was given to students in each grade was the same, but what we expect of students at each grade level is different.
If a teacher saw a fourth grade student doing the type of work one sees in the second grade sample, s/he would know that even though the answer is correct, it is not an efficient or fluent solution. Anchor papers like these, help teachers visualize the kind of student work that is expected at different grade levels. It also helps them understand where their students came from and where they are going.
Marshmallow Peeps come 10 in a package. Each peep is 2 inches long. How long will a train of peeps be if they are lined up in a row with a 1/2 inch between them? Remember to show all your work, use math representation and as much math language as you can.