Friday, June 13, 2014

Algo-Hueristic Theory of Teaching by Don Olmstead


            Algo-Hueristic is an instructional theory that involves the to use two different types of teaching.  One type is an Algorithmic approach that relies on the student’s cognitive ability and the teacher building on previous concepts the student understands.  The other aspect to this model is a Heuristic approach.  The Heuristic aspect of the model involves teaching skills the students need to know and submerging them with that skill.  One way to think of the difference is Algorithms are taught patterns that stack together while Heuristic lessons teach through experience.  The cognitive strategy teaches at least one of the three outcomes: knowledge, skills and activities.  The instructional strategy comes from the overarching theoretic school of cognitivism/pragmatism.   
            The Algorithmic part of the theory is set procedures that are taught and built on each other.  An example of an Algorithmic lesson is teaching students to get to school each day. 
  • ·      Wake up and walk to shower
  • ·      Take off clothes, turn on water
  • ·      Shower
  • ·      Try off
  • ·      Brush Teeth
  • ·      Etc.

         This example shows that sequencing is a major form of learning.  Sequencing is most evident in math, which is why math uses Algorithms.  This method also uses elementary processes and uses building blocks to learn one concept then review the other concepts leading up to the new one.  The term of building concepts is often referred to as the snowball effect.
            Heuristic methods of instruction are becoming more and more evident in schools today.  The new standards focus on experiences and explanations.  Heuristic instruction provides in-depth analysis and critical thinking to real problem solving.  An example of a Heuristic lesson would be assigning students in a Chemistry class to build a boat only using recyclables.  Students performing this assignment are going to need two plans.  First they will need a procedure to figuring out how to float a boat with only recyclables.  Second, they would have to determine a method for executing this plan.  This lesson is Heuristic because it places students in an environment in which they have to determine a plan and a mode of action for solving the overarching question. 
            Algorithmic and Heuristic approaches are similar because they both use different amounts of elementary scaffolding.  Algorithms constantly use build in other concepts and are limited to that repetition.  Heuristic approaches use a small amount of elementary concept instruction and jump straight to a bigger concept.  For the Biology lesson, the teacher did not go back and review why things float.  The teacher simply gave them the challenge and they figured it out.  If the teacher would have gone all the way back to lessons on floating bottles and build lessons from that, then the lesson would be Algorithmic.  The two can provide great structure for lessons and both need to be used to keep students understanding smaller concepts (Algorithmic) and using large concepts to overarch the smaller ones (Heuristic).
            In the end, the two types of instruction used in one model provide at least one of the following outcomes: knowledge, skills and/or activities.  As seen at the bottom of figure 1, Algorithmic models provide students with great knowledge.   However, it fails to provide skills and activities for the students.  Heuristic models include knowledge through investigation, skills through experience, and activities to reinforce knowledge.  The constant reinforcement of skills makes Algorithmic models provide knowledge to students but Heuristic processes use critical thinking to produce skills.  The Algo-Heruistic Theory of teaching is supported by the theory of cognitivism/pragmatism.  The overarching theory of cognitive/pragmatism includes efficiently understanding knowledge and organizing it efficiently.  The Algo-Heuristic theory can be very beneficial by students when teachers use Algorithmic methods to reinforce knowledge and Heuristic methods to build skills and activities.




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