Teaching & Learning Trends Faster & Better |
Amazing new chart for support of either 2D or 3D periodic tables makes learning & teaching easier, faster, and better! Free downloadable templates and perpetual use permission HERE! |
A sketch of our design approach: First, showing all the table doesn't clarify trends, some parts only bring up questions and doubt, so we got rid of those that clarify, and saved parts that don't. The useful parts turn out to be the Main Group elements, the S- and P-blocks - starting at the second period. The useful parts turn out to be the Main Group elements, Atom/Element properties are each different in many ways - primarily by the amount of protons - the numbers used on the chart. We elected to add names and arrows to others most frequently taught, names where they are greatest, and arrows towards the lesser. The last column has none of the properties at the top, but those next door to the left and on the left edge want to be like them too, after all they are the NOBLE gases! We'll build the NOBLEs a castle tower before new neighbors arrive - the Alkaline Earths - who could also be NOBLE if they lose an electron and a proton! Fold next to the Halogens (who want a proton) before cutting sides away, and wrapping to put the Alkaline Earths next to the NOBLES - who now have wanna-bees on both sides! Some of the numbers at the fence would be sequential if we shifted the Alkaline Metals column up one period, another lesson enhancement. ...but awkward looking. A little slant with PhotoShop skew will make a stand-up tube, without messing with the atomic number sequence - just as the Periodic Law states. What we end up with is neatly formatted, with older Roman numeral column designations added that indicate the number of valence electrons! Below is what the AP chem students' model looks like - property choice made by student or teacher, taught when first flat, then a cylinder with edges connected, creased to emphasize the Noble Gases, and with them hidden, as their neighboring element columns are 'unionized'. (Hmm... I think I'll add He to the rest of the Nobles, what do you think?) For free downloadable templates and perpetual use permission, just tap HERE! |
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AlexanderDESIGN 4851 N. Washtenaw Ave., Chicago, IL 60645 773.271.0318 last update 12/4/18 |