ALEX Classroom Resource

  

Gearing Up With Robots

  Classroom Resource Information  

Title:

 Gearing Up With Robots

URL:

 https://www.nationalgeographic.org/activity/gearing-robots/

Content Source:

 National Geographic
Type: Learning Activity

Overview:

In this activity, students experiment with gear motion to understand how gears work to change the amount of force, speed, or direction of motion in machines.

Content Standard(s):
Science
SC2015 (2015)
Grade: 3
1 ) Plan and carry out an experiment to determine the effects of balanced and unbalanced forces on the motion of an object using one variable at a time, including number, size, direction, speed, position, friction, or air resistance (e.g., balanced forces pushing from both sides on an object, such as a box, producing no motion; unbalanced force on one side of an object, such as a ball, producing motion), and communicate these findings graphically.

NAEP Framework
NAEP Statement::
P4.13: An object is in motion when its position is changing. The speed of an object is defined by how far it travels divided by the amount of time it took to travel that far.

NAEP Statement::
P4.14: The motion of objects can be changed by pushing or pulling. The size of the change is related to the size of the force (push or pull) and the weight (mass) of the object on which the force is exerted. When an object does not move in response to a push or a pull, it is because another push or pull (friction) is being applied by the environment.

Unpacked Content
Scientific And Engineering Practices:
Planning and Carrying out Investigations
Crosscutting Concepts: Cause and Effect
Disciplinary Core Idea: Motion and Stability: Forces and Interactions
Evidence Of Student Attainment:
Students:
  • Planned an experiment to determine the effects of balanced and unbalanced forces on the motion of an object using one variable at a time.
  • Carried out an experiment to determine the effects of balanced and unbalanced forces on the motion of an object using one variable at a time.
  • Collected data from experiment to serve as the basis of evidence for how balanced and unbalanced forces on an object determines an object's motion.
  • Communicated evidence and findings from experiment graphically.
Teacher Vocabulary:
  • Experiment
  • Variable
  • Motion
  • Force (push and pull)
  • Balanced forces
  • Unbalanced forces
  • Cause and effect
  • Number
  • Size
  • Direction
  • Position
  • Friction
  • Air resistance
  • Communicate
  • Graphically
  • Net force
  • Sum
Knowledge:
Students know:
  • Each force acts on one particular object and has both strength and direction.
  • An object at rest typically has multiple forces acting on it, but they add to give zero net force on the object.
  • Forces that do not sum to zero can cause changes in the object's speed or direction of motion.
  • Objects in contact exert forces on each other.
Skills:
Students are able to:
  • Collaboratively plan an experiment to determine the effects of balanced and unbalanced forces on the motion of an object using one variable at a time.
  • Carry out an experiment to determine the effects of balanced and unbalanced forces on the motion of an object using one variable at a time.
  • Collect and record data from experiment.
  • Describe how the investigation plan addresses the purpose of the investigation.
  • Communicate findings graphically.
Understanding:
Students understand that:
  • Cause and effect relationships provide evidence when investigating balanced and unbalanced forces.
AMSTI Resources:
AMSTI Module:
Forces and Investigations
Alabama Alternate Achievement Standards
AAS Standard:
SCI.AAS.3.1- Identify the effect of a force (e.g., push, pull, gravity) applied to an object.
Tags: force, motion, speed, velocity
License Type: Custom Permission Type
See Terms: https://www.nationalgeographic.org/terms-of-service/
For full descriptions of license types and a guide to usage, visit :
https://creativecommons.org/licenses
AccessibilityText Resources: Content is organized under headings and subheadings
Comments
  This resource provided by:  
Author: Stephanie Carver
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