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Observation & Inference

Observation & Inference. modified by Liz LaRosa www.middleschoolscience.com 2009, from original posted at: www.science-class.net/PowerPoints/ Observation _ Inference _8th.ppt. What is an observation?. Discuss with your face partner….

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Observation & Inference

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  1. Observation & Inference modified by Liz LaRosa www.middleschoolscience.com 2009, from original posted at:www.science-class.net/PowerPoints/Observation_Inference_8th.ppt

  2. What is an observation? Discuss with your face partner…. Ask yourself: Can you describe it by seeing it? Hearing it? Feeling it? Tasting it? Smelling it? Measuring it?

  3. What does it mean to “infer”? • Discuss with your shoulder partner…. Are you making a “judgement” about something? Are you describing an opinion or a feellng?

  4. Observations • Any information collected using your senses. Also measurements • Quantitative – measureable or countable • 3 meters long • 4 marbles • 50 kilograms • 35 degrees Celsius • Qualitative – describable, not measureable • red flowers • smells like fresh baked cookies • Tastes bitter • The skill of describing scientific events

  5. Inference • Conclusions, decisions or deductions you make based on observations. • The process of drawing a conclusion from given evidence. • Observations: • I hear people screaming • I smell cotton candy, popcorn, and hamburgers • I see a lot of people • Inference = ? Science Notebook Example: (Write this down…) I see an apple with a bite missing. I see the apple on the ground. A child standing next to the apple is making a face. Possible Inference?__________________________________

  6. The more observations you make, the more accurate your inferences will be!!

  7. Conclusion • A decision you make based on your data—your observations and your inferences

  8. Observation or Inference? • Sort the cards. Decide if each is describing and observation or an inference about a situation

  9. Look at these two sets of animal tracks. List 3 OBSERVATIONS Make an INFERENCE

  10. Now what do you think? Make 3 OBSERVATIONS Make an INFERENCE

  11. Now what do you think? Make 3 OBSERVATIONS Make an INFERENCE

  12. Drawing Conclusions…. Based on Observations and Inferences Use the data in a t-chart to model writing a conclusion about the footprints.  A good conclusion utilizes the three following structures:  Write a sentence that answers the question that you were investigating. This is called the claim. Write a sentence that uses evidence or data from the lab to explain how you knew the answer to the question you were investigating. Write a sentence that summarizes your results.  This connects to the "big idea" or underlying science concept.

  13. Activity Page www.middleschoolscience.com/footprints-isn.pdf In your science notebook, write your conclusion.

  14. Source of graphic:http://bob.nap.edu/html/evolution98/evol6-e.html

  15. Why is he doing that? • Look at the picture. Make three observations. Make one inference. Draw a conclusion based on this information…

  16. What is happening here? • Look at the picture. Make three observations. Make one inference. Draw a conclusion based on this information…

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