TTS Pro-Bot Teachers Manual page 9

Key Focus
Procedures (a set of instructions to complete a
specific task).
National Curriculum for Computing
KEY STAGE 2
• design, write and debug programs that accomplish specific goals, including
controlling or simulating physical systems; solve problems by decomposing
them into smaller parts
• use sequence, selection, and repetition in programs; work with variables and
various forms of input and output
• use logical reasoning to explain how some simple algorithms work and to
detect and correct errors in algorithms and programs
Preparation:
Check that Pro-Bot powers up when switched on. Identify a suitable surface to run Pro-Bot
on. Smooth surfaces will allow Pro-Bot to move more accurately. Have large sheets of paper
and felt tips suitable for Pro-Bot ready.
Activity
Procedures are a great way for pupils
to solve problems by decomposing
them into smaller parts.
In LOGO, the programmer can
'teach' Logo a new command, for
example "To Square". Every time the
command "Square" is then typed;
LOGO will carry out that procedure.
Pro-Bot can be 'taught' new actions
using its procedure functionality. For
example - Pupils could use Proc 1 to
store the instructions to draw the
first initial of their name and Proc
2 to store the instructions for the
second initial. By then using Proc 1
and Proc 2 from the main program
Pro-Bot would draw the children's
initials.
NB Pro-Bot has a hidden proc 39
that draws a Diamond and a hidden
proc 40 that draws 8 diamonds as a
star using Proc 39.
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