Making Observations and Inferences

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Presentation transcript:

Making Observations and Inferences

Observations Observations: what we notice about the world around us Two types of observations. Quantitative Qualitative

Qualitative Describe the qualities of an object (things that cannot be measured with numbers) Color, shape, feel, taste, sound. Examples: Olivia is wearing a blue sweater. The lab tabletop is smooth. The dog’s fur is shiny.

Quantitative Quantity: How many? The answer will always have a number. Examples: The room is 8 meters across. Sarah is 141-cm tall. Pencil has a mass of 45 grams.

Inferences Inference: A logical interpretation of an event that is based on observations and prior knowledge.

Inferencing Example: You are at the counter in the office to get a bus pass signed. You see a student leave the principal’s office crying and upset. We could make an inference as to why the student is upset. Could be in trouble (ISS, OSS, expelled) Family problems at home (sick, accident) Student not feeling well Student has poor grades (failing, retention)

Observation VS Inferences Observation – things you See Smell Touch Taste Hear Inference – how you interpret what you see

Observation vs Inference Picture 1 List 3 Observations List 3 Inferences

Observation vs Inference Picture 2 List 3 Observations List 3 Inferences

Observation vs Inference Picture 3 List 3 Observations List 3 Inferences

Resources: http://teachers.henrico.k12.va.us/highlandsprings/m eade_j/Units/Unit%201/Unit%201,%20Part%201% 20Notes.PPT#289,43,Experimental Design http://www.cobb.k12.ga.us/~dickerson/sci%20met hod.ppt#256,1,Scientific Method