mystery footprints observationinference_9.12.12.pp
TRANSCRIPT
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Do Now! (Part B)*NEW: Explain in your notebook…
1) What you see AND
2) What you think happened in the picture.
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modified by Liz LaRosa www.middleschoolscience.com 2009, from original posted at:www.science-class.net/PowerPoints/Observation_Inference_8th.ppt
Details, Observations & Inferences
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Observations• Any information collected with the senses.
– You use your eyes, ears, smell, taste, touch etc.
• You are describing scientific events using DETAILS.
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Details in Observations• Use adjectives to provide more information.
• NO Details = a car• Details = a red 2012 mustang convertible car
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EX 1: Observation? Details?
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Activity #1
• Sit with your partner and look through the 4 different sets of cartoons.
• Work together to find the 6 differences in each picture and write them down on your worksheet.
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EX 2: Observation? Details?
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Why are observations important?
• They provide clues on how to create an experiment and how to solve a problem!
• They also tell other scientists who want to do the same experiment what is happening.
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Activity #2• Pick a partner and turn your desks away
from each other.
• Roles: 1 person will be the artist and 1 person will be the “observer.”
• The observer will describe the photo to the artist BUT NEVER show the picture or say what it is.
• You have 10 min. GOOD LUCK!
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2 Types of Observations:
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Quantitative Observation
• Quantitative (Cuantos)
• Need tools & numbers!
• EX: SALAMI– Weighs 2 pounds– The salami is 6 inches long– It is made from 100% beef
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Qualitative Observation
• Qualitative (Calidad):
• You use only your senses!
• EX: SALAMI– Smells good– Tastes like chicken– Is red colored– It is heavy
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Practice: Quantitative or Qualitative?
1. Ms. Liu is 5 ft and 6 inches tall
2. The walls are white
3. Dominican Republic has beautiful beaches
4. The salami weighs 2 lbs (pounds)
5. Cheese smells bad
6. English High has 5 floors
7. There are 16 students in biology
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Which type of observation is better?
Qualitative or Quantitative?
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They BOTH are important and tell us more information!
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Inference• Conclusions or guesses based on observations.• The process of drawing a conclusion from evidence of what you see.
PRACTICE: • Observations:
• I hear music and people laughing• I smell cotton candy, popcorn, and hamburgers• I see a lot of fun rides
• Inference = ?
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Inference: This place is a fun Carnival!
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Look at these two sets of animal tracks.
List 3 OBSERVATIONS
Make 1 INFERENCE
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Now what do you think?
Make 3 OBSERVATIONS
Make 1 INFERENCE
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Now what do you think?
Make 3 OBSERVATIONS
Make 1 INFERENCE
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Activity #3
In your science notebook, write down your conclusion.
What do you think happened based on the picture with the footprints?