Science: Waukee South Middle School: 6 th grade. Fall 2014 Objective: ● Students will demonstrate understanding of pushes and pulls can have different strengths and directions & ● Pushing or pulling on an object can change the speed or direction of its motion and can start or stop it. PS2.B: Types of Interactions ● Electric and magnetic (electromagnetic) forces can be attractive or repulsive, and their sizes depend on the magnitudes of the charges, currents, or magnetic strengths involved and on the distances between the interacting objects. (MS-PS2-3) ● Gravitational forces are always attractive. There is a gravitational force between any two masses, but it is very small except when one or both of the objects have large mass—e.g., Earth and the sun. (MS-PS2-4) ● Forces that act at a distance (electric, magnetic, and gravitational) can be explained by fields that extend through space and can be mapped by their effect on a test object (a charged object, or a ball, respectively). (MS-PS2-5) NGSS information: http://www.nap.edu/openbook.php? record_id=13165&page=116 Tasks: Engage/Explore: ● Scavenger hunt: have student work in pairs to find 10 objects around the school/pod/classroom that they have to push or pull to use. Have them keep track in their journal. When they come back, they should have these labeled to either “push, pull or both”. ● Discuss what was found and ask higher order questions on WHY it is labeled that way. Explain: ● Were any of these really hard to use? (EX: push the elevator button VS. break fire glass) ● Compare and contrast the items they listed. Make venn diagram(ask first for student ideas and how they think they could show the

Pushes and Pulls Lesson

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Science 6th Grade

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Science: Waukee South Middle School: 6th grade. Fall 2014

Objective:

Students will demonstrate understanding of pushes and pulls can have different strengths and directions & Pushing or pulling on an object can change the speed or direction of its motion and can start or stop it.

PS2.B: Types of Interactions Electric and magnetic (electromagnetic) forces can be attractive or repulsive, and their sizes depend on the magnitudes of the charges, currents, or magnetic strengths involved and on the distances between the interacting objects. (MS-PS2-3) Gravitational forces are always attractive. There is a gravitational force between any two masses, but it is very small except when one or both of the objects have large masse.g., Earth and the sun. (MS-PS2-4) Forces that act at a distance (electric, magnetic, and gravitational) can be explained by fields that extend through space and can be mapped by their effect on a test object (a charged object, or a ball, respectively). (MS-PS2-5)

NGSS information: http://www.nap.edu/openbook.php?record_id=13165&page=116

Tasks:Engage/Explore: Scavenger hunt: have student work in pairs to find 10 objects around the school/pod/classroom that they have to push or pull to use. Have them keep track in their journal. When they come back, they should have these labeled to either push, pull or both. Discuss what was found and ask higher order questions on WHY it is labeled that way.

Explain: Were any of these really hard to use? (EX: push the elevator button VS. break fire glass) Compare and contrast the items they listed. Make venn diagram(ask first for student ideas and how they think they could show the information) and put objects in their correct category (whole group, no teacher assistance).

Elaboration: If they dont come up with a Both section, scaffold them to a pen and how you push/pull at the same time. (What do you notice about what I am doing right now ? Now, pick up your pen and feel what youre doing. *Discuss*.

Evaluate: What is something that requires more push or pull? Write your answer on a half sheet of paper to turn in. We will continue this next week