1. Bitter, G. G.; Legacy, J. M.Using Technology in the Classroom, brief ed.Pearson Allyn and Bacon:Boston, MA, 2005; pp28,36–37.
2. Reksten, L. E.Using Technology to Increase Student Learning;Corwin Press:Thousand Oaks, CA, 2000; p2.
3. Bender, R. L.; Bender, W. N.Computer-Assisted Instruction for Students at Risk for ADHD, Mild Disabilities, or Academic Problems;Pearson Allyn and Bacon:Boston, MA, 1996; p1.
4. Orbital plots of the hydrogen atom
5. Teaching the shapes of the hydrogenlike and hybrid atomic orbitals