Page 98 - Making Instruction Work
P. 98

chap 8  3/4/97 3:43 PM  Page 84




              84                 making instruction work


              Example #1: This hierarchy shows the skills that must be in
              place before someone can practice the entire task of baking a
              cake.

              Figure 8.1



                     Given utensils, equipment, oven, and recipe, make
                     and bake a cake. Criteria: Cake matches photo with
                     recipe and is edible.







                  Measure
                                          Use oven            Read the recipe
                 ingredients






                 Use utensils          Read numbers            Read English



                Read it from the top down, like this: Before being ready to
              practice the entire objective (baking a cake), anyone would
              have to be able to measure ingredients, use an oven, and read
              the recipe, and these three skills can be learned and practiced
              in any order. Before they can practice measuring ingredients,
              they need to be able to use utensils and read numbers, and
              these two skills can be learned and practiced in any order. And
              so on.
                As we have all been victims of those who have not had the
              appropriate sub-skills in place before practicing the entire
              task, we should applaud the existence of the hierarchy and vig-
              orously promote its use in the design of instruction.
   93   94   95   96   97   98   99   100   101   102   103