Observations Observations We use our 5 senses to
Observations • Observations: We use our 5 senses to gather information about the world around us. There are 2 types of observations.
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 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. • The pencil’s mass is 6. 0 grams.
Observation Examples • I observe a red bird. • I observe bubbles inside of the beaker. • I observe 24 tables. • I observe a baby crying.
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, expelled) Family problems at home (sick, accident) Student not feeling well Student has poor grades (failing)
Inference Examples • I infer that the window cracked because of a rock. • I infer that the plant died because it received too much water. • I infer that the student is in trouble because he has bad grades.
More Examples Observation: The grass on the school’s front lawn is wet. Possible Inferences: • It rained. • The sprinklers were on. • There is dew on the grass from the morning. • A pack of dogs peed on the grass. (unlikely)
Think Pair Share 1. Make 2 observations about the table where you are sitting. 2. Make 2 inferences about the table. 3. Now turn to your partner and share your observations and inferences. What is the difference between an observation and an inference?
Possible Answers 1. I observe writing on the table. 2. I observe that one leg of the table is shorter than the other 3 legs. 1. I infer that students have written on the table. 2. I infer that one of the legs is missing its base.
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