22 2.2.2 (g) the shapes of, and bond Explore molecule shapes by building * Explain electron-pair repulsion theory; correct notation and angles in, molecules and ions molecules in 3D theory of depicting shapes of molecules in three dimensions. with up to six electron pairs Online model - students can find out by * Use the model to allow learners to explore molecular shapes, and (including lone pairs) surrounding adding single, double or triple bonds and finding out the effect of adding different types of bonds and lone pairs. the central atom as predicted by lone pairs to the central atom. Then, This could be used to allow learners to the greater repulsion ‘discover’ electron pair repulsion, including compare the model to real molecules. of lone pairs. the relative repulsive strengths of * Have learners draw, name the shapes and label the angles of a bonded pairs and lone pairs of range of molecules covering all shapes referred to in the specification, Activity: electrons and extending to polyatomic ions: NH4+, NO3–, SO42–, CO32–. 2.2.2 (h) electron pair repulsion to * Review learning using the drag and drop activity and quiz, explain the following shapes of An interactive tutorial and quiz depending on ability. molecules and ions: linear, This computer course is designed to teach trigonal planar, pyramidal, the user the electron pair repulsion rules. tetrahedral and octahedral Once the user is familiar with the rules a set of worked examples are available to show how they are applied to unfamiliar molecules. Activity: Drag and drop activity Drag and drop activity of shapes and bond angles can alternatively be laminated as cards. Activity:
22 2.2.2 (g) the shapes of, and bond angles in, molecules and ions with up to six electron pairs (including lone pairs) surrounding the central atom as predicted by electron pair repulsion, including the relative repulsive strengths of bonded pairs and lone pairs of electrons 2.2.2 (h) electron pair repulsion to explain the following shapes of molecules and ions: linear, trigonal planar, pyramidal, tetrahedral and octahedral Explore molecule shapes by building molecules in 3D Online model - students can find out by adding single, double or triple bonds and lone pairs to the central atom. Then, compare the model to real molecules. Activity: An interactive tutorial and quiz This computer course is designed to teach the user the electron pair repulsion rules. Once the user is familiar with the rules a set of worked examples are available to show how they are applied to unfamiliar molecules. Activity: Drag and drop activity Drag and drop activity of shapes and bond angles can alternatively be laminated as cards. Activity: * Explain electron-pair repulsion theory; correct notation and theory of depicting shapes of molecules in three dimensions. * Use the model to allow learners to explore molecular shapes, and finding out the effect of adding different types of bonds and lone pairs. This could be used to allow learners to ‘discover’ the greater repulsion of lone pairs. * Have learners draw, name the shapes and label the angles of a range of molecules covering all shapes referred to in the specification, and extending to polyatomic ions: NH4+, NO3–, SO42–, CO32–. * Review learning using the drag and drop activity and quiz, depending on ability.
Chemistry%20A%20sample%20SoW%20using%20builder%20lessons%201-24.docx