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CKSci Grade 1 Unit 4: Simple Machines

Grade Level Grade 1
Standards Alignment
Next Generation Science Standards


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Focus: In this unit, students will identify simple machines—the ramp (inclined plane), wheel and axle, pulley, lever, wedge, screw, and gears. Students will explore where these devices are found and experience how they can make a given task easier. Students will also learn that simple machines are combined to make compound machines, which themselves can be familiar and be operated simply.

Number of Lessons: 10

Instruction Time: Most Core Lessons constitute one classroom session of thirty to forty-five minutes. Some lessons cover two or three days of instruction. Some single-day activities and performance tasks might require setting aside a longer block of time.



Ask questions, make observations, and gather information about a situation people want to change to define a simple problem that can be solved through the development of a new or improved object or tool.
Develop a simple sketch, drawing, or physical model to illustrate how the shape of an object helps it function as needed to solve a given problem.
Analyze data from tests of two objects designed to solve the same problem to compare the strengths and weaknesses of how each performs.


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