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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

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

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?

what does it mean to infer
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?

observations
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
inference
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?__________________________________

conclusion
Conclusion
  • A decision you make based on your data—your observations and your inferences
observation or inference
Observation or Inference?
  • Sort the cards. Decide if each is describing and observation or an inference about a situation
slide9

Look at these two sets of animal tracks.

List 3 OBSERVATIONS

Make an INFERENCE

slide10

Now what do you think?

Make 3 OBSERVATIONS

Make an INFERENCE

slide11

Now what do you think?

Make 3 OBSERVATIONS

Make an INFERENCE

slide12

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.

activity page
Activity Page

www.middleschoolscience.com/footprints-isn.pdf

In your science notebook, write your conclusion.

source of graphic http bob nap edu html evolution98 evol6 e html

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

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