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Earth’s place Lesson One
Date: 9/13/17 Agenda LT: SEM system LT: I can use a model to describe the motion of the SEM system. Sponge: When you hear the word system, what do you think of?
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TO do… Make up quizzes Intro to Space Unit:
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What is a system? Sometimes, when scientists are trying to think about something, they focus on a system and only the components within it.
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Systems and models Scientists often use models to represent systems. Why are models useful?
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Copy the following in your index.
Rotation: to turn or spin around itself Revolution: to move around a different object, also called orbit
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SEM Model- NB 106 Remember…you can use words and drawings!
Share ideas with your group!
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SEM Model – NB 107 Each group needs one sun, one earth, and one moon. The other person will check to see if everyone is moving correctly. Moon: rotates counterclockwise while revolving counterclockwise around Earth. Earth: rotates counterclockwise and revolves counterclockwise around the Sun.
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Roles Everyone contributes their thoughts! Model the movement of the Earth and sun. The moon sits this one out. Team Manager – Keep everyone in line! Materials Manager – Moon Data Manager – Earth Info Manager – Sun
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Earth Moon Revolve Rotates
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Earth Moon Revolve Earth revolves around the sun in an oval path once every year Rotates
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Earth Moon Revolve Earth revolves around the sun in an oval path once every year Rotates Earth rotates around itself once every day
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Roles Everyone contributes their thoughts! Model the movement of the Earth, moon, and sun. Team Manager – Keep everyone in line! Materials Manager – Moon Data Manager – Earth Info Manager – Sun
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Earth Moon Revolve Earth revolves around the sun in an oval path once every year Moon revolves around the Earth in a circular path every 28days (about a month) Rotate Earth rotates around itself once every day
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Earth Moon Revolves Earth revolves around the sun in an oval path once every year Moon revolves around the Earth in a circular path every… Rotates Earth rotates around itself once every day Moon rotates around itself once every 28 days (about a month)
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Discuss… How do we make up the ¼ day in Earth’s revolution around the sun? Talk about it at your table for one minute – info managers, be prepared to share!
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Below your chart… We have a leap year (an extra day in February) every 4 years to make up for the extra ¼ day in Earth’s revolution!
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Notebook 108 If time…
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Notebook 108 If time…
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Notebook 108 If time…
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If time… How far away is the moon? moon/
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Earth’s place Lesson One
Date: 9/14/17 Agenda LT: Model SEM system LT: I can use a model to describe the motion of the SEM system. Sponge: Earth’s day is determined by ________. Earth’s year is determined by __________. Choose rotating or revolving.
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TO do… Brainpop: Leap Year
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Think, Pair, Share, Add to your notes!
Why do the moon and sun appear the same size in the sky?
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THUMB example
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Think, Pair, Share, copy on the top of NB 112!
The sun and the moon look the same size because the moon is smaller but it is also closer.
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CARE: 9/18/17 What did you do this weekend? You may pass if you’d rather not participate. We will all be active listeners to those speaking. 30 seconds or less to share!
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Seat changes! Hold your belongings in your hands while I tell you where to sit. One table seated at a time! Please keeps comments and noises to yourself.
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Earth’s place Lesson One
Date: 9/18/17 Agenda LT: Model SEM system LT: I can use a model to describe the motion of the SEM system. Sponge: Describe the difference between rotation and revolution.
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TO do… Moon observations since last Thursday (9/14/17) HW tonight
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Reading NB Popcorn reading!
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Performance assessment
Choose rotates or revolves! 1. ___________ means to spin around itself. 2. ____________ means to move around another object. Choose month, day, or year. 3.. The earth spins around itself every __________ 4. The earth moves around the sun every _________. 5. The moon moves around the earth every ___________.
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