chapter 2 process skills
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PROCESS SKILLS
SCED 570, Fall 2011
CHAP2.
Classification
Process of grouping Binary classification: Sorting objects into 2
groups based on a particular property Multistage classification Serial classification: sorting objects in a
logical order on the basis of the extent or degree to which they demonstrate a common attribute
Dichotomous key: a tool that scientists can use to help identify a particular specimen
Serial classification
Serial classification
Identified Attribute
Serial Order Order Direction
Measurement
Quantify variables using a variety of instruments and nonstandard/standard units
Nonstandard units: it is difficult to consistently compare objects that cannot be held side by side
Standard units: enable consistent descriptions and comparisons of measured objects that are not side by side and cannot be directly compared
Communication
Convey information from one part to another
Record data in multiple ways and present them to others
Inference
Interpretation of observation Draw a tentative conclusion about
objects, organism, or events base on observation and prior knowledge
Observation Inference
Statements about information
Interpretation of observation
What sense did you use in making that observation?
What is your evidence?Why do you think so?
Inference
You will find a line drawing of fossil tracks found in a layer of sandstone in Colorado. Your task is to make observations and inferences for each part.
Prediction
Statements of future observation Make a forecast of a possible
outcome of an investigation based on known patters in data
Interpolation: between available data points p.39
Extrapolation: outside the collected data points p.40