The Continuum of Placement and Services Visual created by "School Psychology Shop for XBA IEP and Behavior" is an useful tool in explaining the continuum of placement and services.
Remember that the continuum of placement has to do with the level of access the student has to general education peers. As you progress from least to most restrictive on the continuum, child has less and less access to typically developing peers.
Feel free to email me with questions. Thank you for considering my product!