Observation vs. Inference

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Observation vs. Inference

• Starring Homer J. Simpson

2
Observation

• Observation
• when studying something describe only facts that
  you can see, touch, taste, smell and hear.
• you are not making any guesses.
• NOT AN OPINION!!

3
Inference

• Inference
• using your observations to make a guess about an
  object or an outcome
• based on prior knowledge or experience.
• THIS CAN BE A SCIENTIFIC OPINION.

4
Prediction

• Prediction
• a statement or claim that a particular event
  will occur in the future.
• Scientists use research and many observations to
  make predictions.
• THIS IS AN EDUCATED GUESS.

5
Hypothesis

• Hypothesis
• a prediction that can be tested.
• Scientists use research and many observations to
  make a hypothesis.
• THIS IS AN EDUCATED GUESS.

6
Group Practice

• Discuss with your group what you SEE (or hear,
  smell, feel, taste) or can observe about what is
  happening in this picture. Remember, observations
  are when you use your senses to find out about
  the world around you.
• Identify, communicate and record these 3
  observations.
• Discuss with your group what you can INFER, which
  is a conclusion based on your observations.
• Identify and communicate and record your
  INFERENCE. Your inference is when you use prior
  knowledge to explain the observations you made
  from this picture.