Models are powerful tools for teaching Science as they provide useful simplifications of structures and processes, helping make the unseen visible and the complex simple! Using the ready-to-use materials provided, students first assemble a model to represent the Structure of an Atom that can be used to make predications and communicate their findings to others. The nuclear model of the atom was developed after many years of theories and experiments. Atoms were found to have a very small nucleus, made of protons and neutrons that is orbited at great distance by electrons. First, your students will make their paper models of protons, neutrons, electrons and electron shells. They will then use their models to learn about the nuclear model of an atom. The model covers the features of subatomic particles, electron energy levels, atomic number, mass number, ions and isotopes. Includes enough materials for an individual student to work alone or 2 students to work cooperatively to assemble a paper model. Also includes a comprehensive background information providing opportunities for students to Engage, Explore, Explain, Extend and Evaluate their understanding of the concept. Satisfies NGSS Standards which encourage students to develop & use models to represent structures, systems & processes. Perfect for use at home, in the classroom or lab.