Goal- Understand Scale in the context of linear measure
Procedure- 1. Measure the diameter of model earth. 2. Research the actual diameter of earth and the distance between earth and moon. 3. Define proportion equation. 4. Plug in values and solve for scale/ model distance. 5. Use ruler to plot the distance and place in appropriate place. 6. Video/photo results Data/Calculations- 1. 7 5/8 inches and 19.5 cm. 2. 7,918 miles or 12,742 km; 238,900 miles or 384,000 km. 3. distance to moon/ diameter of earth should equal the distance of the model/ diameter of earth model. 4. 230 inches/ 12 will equal 19.2 feet.
5. Refer to video for plotting.
Video-
2-3 Sentence Conclusion - 1. The moon is a lot closer to the earth than we thought. 2. You can actually do a proportional representation in a single room.
Reflection
-What else would you of asked a student? What they expected compare to what the results were from their procedure.
-What else might you ask groups that finish early? Can you do the same with other planets/ sun/ buildings?
-What do you feel was left out? Not quite as accurate as it could of been using other devices.
--
Sharon McBroom
University School of Nashville
7th Grade Science
"Learn from yesterday, live for today, hope for tomorrow. The important thing is to not stop questioning." Einstein
"We are stuck with technology when what we really want is just stuff that works." D. Adams
No comments:
Post a Comment