SEEd - Grade 3
Lesson Plans

Strand 3.3: FORCE AFFECTS MOTION

Forces act on objects and have both a strength and a direction. An object at rest typically has multiple forces acting on it, but they are balanced, resulting in a zero net force on the object. Forces that are unbalanced can cause changes in an object's speed or direction of motion. The patterns of an object's motion in various situations can be observed, measured, and used to predict future motion. Forces are exerted when objects come in contact with each other; however, some forces can act on objects that are not in contact. The gravitational force of Earth, acting on an object near Earth's surface, pulls that object toward the planet's center. Electric and magnetic forces between a pair of objects can act at a distance. The strength of these non-contact forces depends on the properties of the objects and the distance between the objects.

Standard 3.3.5

Design a solution to a problem in which a device functions by using scientific ideas about magnets. Define the problem, identify criteria and constraints, develop possible solutions using models, analyze data from testing solutions, and propose modifications for optimizing a solution. Examples could include a latch or lock used to keep a door shut or a device to keep two moving objects from touching each other. (PS2.B, ETS1.A, ETS1.B, ETS1.C)

• 3RD GRADE MOTION AND STABILITY: FORCES AND INTERACTIONS
  A lesson that uses magnets to address standards 3.3.1, 3.3.4 and 3.3.5 (Weebly).
• Airpod Case Design - 3-PS2-4
  Science Phenomena video. Shows an example of a solution for 3.3.5. 3rd grade - Forces and Interactions
• I Need a Magnet!
  A lesson where students use magnets to solve a problem. Intended to be a final assessment of understanding of magnetism concepts. (Better Lesson)
• Magnetic Drill and Invisible Screws
  Phenomenon video for 3.3.5. Science Phenomena: 3rd grade - Forces and Interactions

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http://www.uen.org - in partnership with Utah State Board of Education (USBE) and Utah System of Higher Education (USHE).  Send questions or comments to USBE Specialist - Jennifer  Throndsen and see the Science - Elementary website. For general questions about Utah's Core Standards contact the Director - Jennifer  Throndsen.

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