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Alexander Arrangement
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Alexander Arrangement of Elements

Alexander Arrangement DeskTopper

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FREE chemistry interactives by Roy Alexander
           ...designer of three-dimensional models & manipulatives.
Currently concentrating on improving understanding of the Periodic Law and Periodic Tables, Roy has developed free downloadables employing NGSS and cross cutting for teaching/learning with element property trends manipulatives for multiple grade levels, DIY periodic table creation ' cards' - also for multiple grade levels, a series of Power Points outlining the history of periodic tables, and lessons that bring them all together.
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Teaching the Periodic Law with evidence by
        the Chemical Element System model

         ...the exciting & motivating 3D classroom size model of the AAE, by adhering strictly to the Periodic Law, and when in classroom introduction prior to the Periodic Table, tangibly validates the former while deflecting criticism of the latter for the inability - in 2D - to show element relationships both continuous in atomic number sequence and with all property related elements contiguous.
Learning is Better:   Starting with the Chemical Element System's accuracy, students recognize that previously perceived periodic table faults are unavoidable if all the elements are to be seen at once - the very feature of periodic tables that allow the DOING of chemistry!
K.I.S.S.:   The system models presentation is de-cluttered, and focuses on what simple substances of elements actually exist NOW pictured - for prior knowledge to kick in.
New Motivates:   New, unique, and attractive objects raise the level of interest of everyone everywhere, and the Alexander Arrangement does this in the classroom.
Understanding:   3D models always promote motivation and clarity. Consider how many other models are used in teaching chemistry, biology, and physics.
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The LEGENDARY Alexander Arrangement DeskTopper
           ...a personal model for students
Teachers, inserting the DeskTopper or the larger Illustrated AAE into the curriculum just prior to the trends lesson 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 - where all the elements are visible at a glance!.
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Some Alexander designed Freebies
Concept of the Alexander Arrangement of Elements
Click image to Email for Free Interactives

the AAE model of the Periodic Law
3D FOREVER PERIODIC TABLE rotation video option
Click image to download the Rotation movie

DeskTopper Alexander Arrangement
Concept of the Alexander Arrangement of Elements
Click image for DeskTopper details

the Element System is a Helix - modeled today in the Alexander Arrangement of Elements

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My goal is to provide trustworthy information. If I have failed, please call me at 773.271.0318, or email me: roy@aaeinfo.us
  Last Update 4/24/19