Big Idea 3 · Topic 3.7 · Exercise 2
Design the Gate
25 minutes - 4 rule sets - write the nested conditional
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The same cases as your handout, in the same order.
Scenario 1 · Foundational
The Vortex gate: a rider must be at least 48 inches tall to ride. Among tall-enough riders, those at least age 12 see 'Enjoy the ride'; those under 12 see 'Ride with an adult'. Riders under 48 inches see 'Too short to ride'.
The gating question (your OUTER condition):
Your nested IF/ELSE pseudocode (put each message in one branch):
Scenario 2 · Core
A social site shows the 'Post' button only to users who are logged in. Among logged-in users, only those whose email is verified see 'Post'; logged-in users without a verified email see 'Verify your email'. Anyone not logged in sees 'Please log in'.
The gating question (your OUTER condition):
Your nested IF/ELSE pseudocode (put each message in one branch):
Scenario 3 · Challenge
A grader: a score of at least 60 is passing. Among passing scores, a score of at least 90 earns 'A', otherwise 'Pass'. A score under 60 earns 'Fail'.
The gating question (your OUTER condition):
Your nested IF/ELSE pseudocode (put each message in one branch):
Scenario 4 · Challenge
An online store: free shipping is offered only to members. Among members, orders over $50 see 'Free shipping'; members with orders of $50 or less see 'Add more for free shipping'. Anyone who is not a member sees 'Members only'.
The gating question (your OUTER condition):
Your nested IF/ELSE pseudocode (put each message in one branch):
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