The DeskToppers are the quick and easy form of the Alexander Arrangement of Elements (AAE), especially useful in a full classroom, hands–on lesson just prior to the lesson in your curriculum that normally introduces the periodic table.
Working with parts of the printed sheet, students learn of the blocks and the connections by holding them in their hands and doing these connections while building a periodic table of their very own – a welcome change from printed charts, especially for boys.
Students can now understand the foundation of all flat periodic tables: continuity (of atomic number sequence) and contiguity (of chemical similarities – families), because the AAE, of all periodic tables, depicts them accurately and completely.
Arranging all the elements in order (with successive elements touching), while still keeping the accepted groups and families, is possible only because of the limitations of 2D having been removed.
Teachers, inserting the DeskTopper or the larger Illustrated AAE versions into the curriculum just prior to trends lesson with a flat chart, will find that by initiating students to a more correct form of the flat table - obeying the the Periodic Law - will speed and improve learning by adding credibility to the flat table.. and Chemistry!