Making Observations and Inferences. Observations Observations: We use our senses to gather information about the world around us. There are two types.

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Presentation transcript:

Making Observations and Inferences

Observations Observations: We use our senses to gather information about the world around us. There are two types of observations.

Qualitative Qualitative observation: (quality) Usually made with our senses. Color, shape, feel, taste, sound. Examples: Olivia is wearing a blue sweater. The lab tabletop is smooth. The dog’s fur is shiny.

Quantitative Quantitative observation: (quantity) How many. Will always have a number. Based on exact measurement. Examples: The room is 8 meters across. Sarah is 141-cm tall. Sam weighs 450 Newtons.

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

Making Inferences 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 – Based on the five senses: Sight Smell Touch Taste Hearing –Inference – Based on prior knowledge or opinion

Observation vs Inference List 3 Observation List 3 Inferences

Observation vs Inference List 3 Observation and 3 Inferences

Observation vs Inference List 3 Observation List 3 Inferences

Observation vs Inference List 3 Observation List 3 Inferences

Observation vs Inference List 3 Observation List 3 Inferences

Resources: springs/meade_j/Units/Unit%201/Unit%20 1,%20Part%201%20Notes.PPT#289,43,E xperimental Design %20method.ppt#256,1,Scientific Method