Reflection: Complex Tasks Electromagnetism Follow Up - Section 3: Conclusion


As you can see from the video, a second day to clarify a few ideas did not have the desired result.  I think I left this lesson too open to confounding variables, which left me trying to get my class to see that there was, in fact, no relationship between length of wire, and number of paperclips picked up.  My students were not ready to look at a scatter plot and see there was no clear relationship between variables.  I was trying to foster their curiosity (Do you think it might make a difference if there is a space between wraps?) when I should have been helping them isolate a variable.  What I should have done was to ensure everything besides the number of wraps was being done in the exact same way from the beginning, including wrap direction, size of gaps, and overlap.  If everyone had the same length of wire, and wrapped it 20, 40, 60, and 80 times around the bolt, it would have been easy to see the results.

  Proving the Null Hypothesis
  Complex Tasks: Proving the Null Hypothesis
Loading resource...

Electromagnetism Follow Up

Unit 5: Electricity and Magnetism
Lesson 13 of 14

Objective: SWBAT explain factors influencing the strength of an electromagnet.

Big Idea: How can you use evidence to support your claim about electromagnets?

  Print Lesson
Add this lesson to your favorites
student wrapping
Similar Lessons
What Is Sound And How Does It Work?
6th Grade Science » Scientific Measuring and Variable Testing
Big Idea: Before students make sound amplifiers for their Smartphone devices, they need to understand how sound works!
East Walpole, MA
Environment: Suburban
David Kujawski
Heat through Electricity
3rd Grade Science » Production of Heat
Big Idea: Students to examine images on a concept placemat to make the connection of heat and electricity.
Silver Spring, MD
Environment: Suburban
Chaunetta Anderson
Newton's Apples - Day One
4th Grade Science » Roller Coaster Madness
Big Idea: Students will learn about Newton's Laws, G-Forces, and Motion.
Anchorage, AK
Environment: Urban
Jillian Gates
Something went wrong. See details for more info
Nothing to upload