LATCH exercises Category and Hierarchy January 20, 2015 by kgarzag https://sites.stedwards.edu/kgarzag/files/2015/01/LATCH_C_karla-garza-pqsg3k.mp4 https://sites.stedwards.edu/kgarzag/files/2015/01/gnp-to-Hierarchy-1pmof7h.mp4
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