Investigating in Science
Asking questions
Ben discusses and chooses an interesting question to investigate.
Using systematic approaches and scientific conventions
Ben plans and carries out a systematic investigation to gather evidence to test his ideas. He tests for durability by attaching various fabrics to identical wooden blocks and scraping them on the road over a measured distance. He observes each fabric for damage after one, ten, and 20 scrapes.
He uses a scientific convention, that is, "fair testing". There are, however, two scientific conventions Ben does not use. His report does not communicate very well the plan for his investigation, and he carries out only one set of measures for each fabric, so he has little evidence for the reliability of his test.
Reporting
Although he does not try to explain his findings, Ben presents a well-organised report in which he links the findings to his observations. |
Developing and Communicating Scientific Understanding
Using scientific ideas in constructing explanations
Ben selects different materials for various parts of the suit. In his presentation to the class, he is able to justify each choice with reference to the accumulated investigative results and take into account the need for protection against abrasion, water, and sharp objects. He constructs an explanation for an experience, using appropriate scientific ideas. He connects his scientific ideas and provides a coherent explanation, using aids to help the audience to understand. |
