Referenced from lesson Solving Word Problems (Spring, 2021)
We’ve provided contracts and purpose statements to describe two different functions. Write examples for each of those functions.
Directions: half-image
Contract and Purpose Statement |
Every contract has three parts…
# half-image::String->Image
# Consumes the url for an image, and produces that image scaled to half its size.
Examples |
Write some examples, then circle and label what changes…
examples:
____________ (___________________________________) is ______________________________________________________________
____________ (____________________________________) is _______________________________________________________________
end
Definition |
Write the definition, giving variable names to all your input values…
fun __________(___):
____________________________
end
Directions: triple
Contract and Purpose Statement |
Every contract has three parts…
# triple::Number->Number
# Consumes a Number and triples it.
Examples |
Write some examples, then circle and label what changes…
examples:
________ (_) is______
________ (__) is_______
end
Definition |
Write the definition, giving variable names to all your input values…
fun ______(___):
_________________
end
These materials were developed partly through support of the National Science Foundation,
(awards 1042210, 1535276, 1648684, and 1738598).
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