Atomic Theory. John Dalton. Atomic Models. As a summative activity for the unit on Atomic Theory, my students built models of the theory combining Bohr Models for atoms 1 to 20 with the element they make up. The package begins with an overview of Dalton’s atomic theory and has instructions and practice for drawing Bohr Models for atoms 1 to 20. I assigned students one element and they were required to draw the Bohr Model for the atoms and complete a 3-D pyramid for the element. These were attached together by string and I have hung them from the ceiling in my classroom. The effect is dazzling. Students were very engaged in the project which took me two classes or approximately 2 hours. The instructions and templates are included along with a rubric for evaluation.