3a explaining how the use of scientific tools helps to extend senses and gather data about weather (i.e., weather/wind vane: direction; wind sock: wind intensity; anemometer: speed; thermometer: temperature; meter sticks/rulers: snow depth; rain gauges: rain amount in inches).

3b selecting appropriate tools for a given task and describing the information they will provide.

What do these GSEs mean? What subtopics do students need to address to understand these GSEs?

What ideas to students need to understand before they can address the topics described above?

What misconceptions are students likely to have about these topics?

What phenomena and representations help students understand these topics?

What activities or activity sequences can be used to address these GSEs?