We’ve provided contracts and purpose statements to describe two different functions. Write examples for each of those functions.

Heads up for people working with printed workbooks:
Previous versions of this page said that young animals were less than 1 year old, which was a typo.
is-young should include animals that are less than or equal to one year old.

is-young

Contract and Purpose Statement

Every contract has three parts…​

is-young::Row->Boolean

Consumes a Row checks to see if age <= 1.

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

is-lizard

Contract and Purpose Statement

Every contract has three parts…​

is-lizard::Row->Boolean

Consumes a Row, and checks if species = "lizard"

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, 1738598, 2031479, and 1501927). CCbadge Bootstrap by the Bootstrap Community is licensed under a Creative Commons 4.0 Unported License. This license does not grant permission to run training or professional development. Offering training or professional development with materials substantially derived from Bootstrap must be approved in writing by a Bootstrap Director. Permissions beyond the scope of this license, such as to run training, may be available by contacting contact@BootstrapWorld.org.