Big Idea 3 · Topic 3.1 · Exercise 2
Pick the Type
25 minutes - 5 values - choose the type and name
Back to the Topic 3.1 lessonAll CSP topics
How this page works
The writing boxes below are yours. What you type stays in this browser, is saved here as you go, and is never sent to us or to your teacher. Hand the written work in the way your teacher asked for it.
The graded check at the bottom is the part that records to your teacher's gradebook.
The cases, from your handoutNot recorded
The same cases as your handout, in the same order.
Scenario 1 · Foundational
The app must store a player's current score in a game, which goes up and down as they play and is compared against a high score.
What kind of value is this (quantity / yes-no / text / collection):
Best type (number / Boolean / list / string) + a meaningful variable name:
Enrichment - a subtler type or naming consideration:
Scenario 2 · Core
The app must remember whether the user has accepted the terms of service, so it can show or hide a reminder banner.
What kind of value is this (quantity / yes-no / text / collection):
Best type (number / Boolean / list / string) + a meaningful variable name:
Enrichment - a subtler type or naming consideration:
Scenario 3 · Core
The app must store the user's phone number, entered as 5551234567, which is only ever displayed and texted, never used in any calculation.
What kind of value is this (quantity / yes-no / text / collection):
Best type (number / Boolean / list / string) + a meaningful variable name:
Enrichment - a subtler type or naming consideration:
Scenario 4 · Challenge
The app must store the titles of all the songs in a user's playlist so it can show them in order and let the user scroll through them.
What kind of value is this (quantity / yes-no / text / collection):
Best type (number / Boolean / list / string) + a meaningful variable name:
Enrichment - a subtler type or naming consideration:
Scenario 5 · Challenge
The app must store a product's price, like 19.99, because it will be summed into a cart total and multiplied by a tax rate.
What kind of value is this (quantity / yes-no / text / collection):
Best type (number / Boolean / list / string) + a meaningful variable name:
Enrichment - a subtler type or naming consideration:
No graded check on this page yetNot recorded
About the line in your handout
Your handout says this exercise is available online and auto-graded. The exercise IS here, and it is the same work in the same order, but the auto-graded half is not written for this topic yet. Nothing on this page is scored or sent to your teacher.
Hand this in the way your teacher asked for it. Topic 1.1 has its graded check today, and the rest follow.