AP CSP 3.4 Exercise 2: Build the Badge

Big Idea 3 · Topic 3.4 · Exercise 2

Build the Badge

25 minutes - 5 targets - write the string expression that builds each one

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The same cases as your handout, in the same order.

Scenario 1 · Foundational

From first = "Ada" and last = "Lovelace", build the short username AdaL (the whole first name, then just the first letter of the last name).

The pieces you have and the exact target output (written character by character):

The operation (concatenation and/or substring) and the expression that builds it:

Enrichment - a subtler separator, order, or position consideration:

Scenario 2 · Core

From label = "Score" and the value 8, build the display string Score: 8 (the word, a colon, one space, then the digit).

The pieces you have and the exact target output (written character by character):

The operation (concatenation and/or substring) and the expression that builds it:

Enrichment - a subtler separator, order, or position consideration:

Scenario 3 · Core

From word = "clever", build the substring eve (the middle three letters).

The pieces you have and the exact target output (written character by character):

The operation (concatenation and/or substring) and the expression that builds it:

Enrichment - a subtler separator, order, or position consideration:

Scenario 4 · Challenge

From cheer = "GO", build the chant GO-GO (the cheer, a hyphen, then the cheer again).

The pieces you have and the exact target output (written character by character):

The operation (concatenation and/or substring) and the expression that builds it:

Enrichment - a subtler separator, order, or position consideration:

Scenario 5 · Challenge

A teammate's Python code tries to grab the 4th character of word = "rainbow" with word[4], but it prints the wrong letter. Identify the bug and give the corrected expression.

The pieces you have and the exact target output (written character by character):

The operation (concatenation and/or substring) and the expression that builds it:

Enrichment - a subtler separator, order, or position consideration:

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