the point? Working
with RCX messages may help students develop a better understanding of
how input is used by a program to determine its path. Since they set
up a message as a numeric value transmitted via infrared, it may
become clearer to students that a program processes input digitally.
attributes shared by the light sensor watcher and the message watcher
(both work with ranges of values) may help students form a more
general view of sensor input and how it affects a program.
What you will need:
Robotics Inventions™ kit
copy of the Technical Guide
two pre-built robots (will need to coordinate with another group)
building bin (optional)
Student activity sheets
For the class:
pre-built robots, one with a light sensor, and the other without a
Transparencies # 8 and
Make enough copies of the RCX to RCX Communication
activity sheets for each student to have one.
Download the program Sender onto a robot with a light sensor.
Download the program Receiver onto another robot (preferably a
Prepare the materials needed for the “container analogy”. (See page
7-3 for details.)
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