Aristotle: Objects Fall at the Same Rate, D = R x T: Grades 4-10

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1. Students will collect and record fall time data (in decimal seconds) for at least two objects (e.g., a pencil and a baseball) from a set height, completing 100% of their data sheets.

Measurement: Checked through student-submitted data sheets that include at least two timed drops per object and clearly labeled results.

2. Students will calculate and compare average fall times for each object, with at least 80% accuracy in computing decimal averages.

Measurement: Assessment of student calculations for correct averaging and comparison, either in-class or through follow-up questions.

3. Students will explain whether object weight affects fall time using evidence from their experiment and reference to Galileo’s hypothesis, in a written or oral explanation.

Measurement: One-paragraph reflection or group discussion response that correctly states the outcome (e.g., objects fall at the same rate) and connects it to Galileo’s experiment.

1. Students will collect and record fall time data (in decimal seconds) for at least two objects (e.g., a pencil and a baseball) from a set height, completing 100% of their data sheets.

Measurement: Checked through student-submitted data sheets that include at least two timed drops per object and clearly labeled results.

2. Students will calculate and compare average fall times for each object, with at least 80% accuracy in computing decimal averages.

Measurement: Assessment of student calculations for correct averaging and comparison, either in-class or through follow-up questions.

3. Students will explain whether object weight affects fall time using evidence from their experiment and reference to Galileo’s hypothesis, in a written or oral explanation.

Measurement: One-paragraph reflection or group discussion response that correctly states the outcome (e.g., objects fall at the same rate) and connects it to Galileo’s experiment.