1. Dancing Birds
Kids
will build and program two mechanical birds that make sounds and are motorized
to dance using a pulley and belt drive system.
Objectives
Science
Trace
the transmission of motion and transfer of energy through the machine. Identify
the pulleys and belt drive mechanism, and the effect changing the belt has on
the direction and speed of the dancing birds’ movement.
Technology
Create
a programmable model to demonstrate the knowledge and operation of digital
tools and technological systems.
Engineering
Build
and test the dancing birds’ movement. Modify the dancing behavior by changing
the pulleys and belt to affect the speed and direction of motion.
Mathematics
Understand
how the diameter of the pulleys affects the speed of the dancing birds’
movement. Compare the diameter and rotational speed as a ratio. Understand and
use numbers to represent the amount of time the motor is turned on in seconds and
in tenths of seconds.
Vocabulary
Belt,
pulley, and random. Blocks: Motor Power, Motor This Way, Motor That Way, Random
Input, Play Sound, Repeat, Start, and Wait For.
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