I use this graph at the beginning of the year. It is easy to do as a total class, with you guiding them.
1 graph for each student
1 character: student choice (I included a blank student body. I usually use these, but I included the others to give you a choice. Plus, they are from Creative Clips, and they are adorable.)
As you guide the students through the activity, they use a different colored crayon for each section.
For coloring the birthday month: for January, the student colors in one section: February, the student colors 2 sections; March, 3 sections, and so on.
Once the students are done, they can color and cut out the student character. If they use one of the ones that are holding the sign, they can put their name on the sign.
I put these up as one of the first papers on the wall. They are colorful and personalized. Enjoy!
Clip art: http://www.teacherspayteachers.com/Store/Krista-Walden