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Systems and Scale | Activity 4.3

Activity 4.3: Evidence-Based Arguments for Ethanol Burning (50 min)

Students use evidence from their ethanol burning investigation to form arguments about what happened in the Evidence-Based Arguments Process Tool.

Materials You Provide

Resources Provided

Setup

Print one copy of 4.3 Evidence-Based Arguments Tool for Ethanol Burning for each student. Make sure that the 4.2 Ethanol Burning Class Results 11 x 17 Poster (or spreadsheet) (1 per class) from the previous activity is available.

Directions

1. Use the instructional model to show students where they are in the course of the unit.

Assessment

During the class discussion, listen for students making connections to the investigation and their arguments. Are they drawing on observations from the investigation, or from other sources of knowledge and experience? Use the 4.3 Assessing the Evidence-Based Arguments Tool for Ethanol Burning to assess your students’ thinking at this point in the unit. At this point they have concluded their “up the triangle” inquiry journey, and are headed “down the triangle” for the application sequence.

Tips

Have the students store their 4.3 Evidence-Based Arguments Tool for Ethanol Burning in the same place as their Expressing Ideas and Predictions Tools so they can be easily revisited.

Modifications

If you have a hygrometer, consider measuring water content in the air after the ethanol burns.