Thursday, January 18, 2018

Introduction to The Scientific Method (for Parents/Teachers)


The primary goal of STEM club is to introduce primary school students to the scientific method and different braches of science. Two goals of our education process in the scientific method are to develop a casual understanding of justification of knowledge and an initial understanding of correlation (events are coincidental) and causation (events trigger other events to occur). 

Over time, more advanced students will begin to discern systems/processes, formulate models, determine effects (from the manipulation of variables), identify outliers (and other forms of experimental errors), and be able to support these conclusions with relevant discussion. The most advanced primary students may be able to use statistical analysis to support their conclusions or their research design process.

Towards the goal of developing an initial taxonomy for the justification of knowledge, two types of research are introduced:

  • Experimental research: Research that involves the direct control and manipulation of variables. The results from experimental research are sufficient to show causation, but the way that the research is performed could limit the applicability of the results.  
  • Non-experimental research: Research conducted where direct control and manipulation of variables either does not happen or is impossible. Events can be observed and may be found to be coincidental, but generally causation cannot be concluded from non-experimental research (note that causation from non-experimental research is still a very actively debated topic).
Today’s environment is rife with dubious information and unsupported conclusions. Even taking away unintentional misinformation, students need to evaluate information in light of the context of the information and the source’s motivations and incentives (consider information provided by media, marketers, politicians, and others). 

A key skill in the 21st century deducing true (or plausible, logically consistent, and externally verifiable) knowledge from biases, opinions, and pseudoscientific findings by thinking critically and confirming information reliably and independently.

The scientific method is presented in an abbreviated form that maintains commonalities between experimental and nonexperimental research and maintains a level of depth that should be accessible to most primary school students:



Emphasis is placed on the process of using information gained to update an a priori model or theory. The four step procedure for level 1 is summarized as the following:

  1. Identify what is being studied
  2. Identify existing model(s) and theories where they exist
  3. Develop one or more hypotheses
  4. Perform the study and identify what happened
  5. Consider the results of the study and how they might change a priori models and theories
Where might the scientific method (or variations of the process of inquiry) be used? Many fields use the scientific method and students who find that they do not like a particular field have many choices of alternative fields to explore. Science, technology, engineering, and mathematics touches virtually all facets of modern life. The figure below shows some of the branches of science(note that many other disciplines/sub-disciplines exist):



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