Normalize Stated Whitespace without Inventing Data
Remove surrounding whitespace and preserve characters inside the stated text.
About 22 minutes, plus any extended practice
Open lesson 1Read Text Files and Structured Formats
Interpret CSV A,"red,blue",5 and JSON {"id":"007","count":5}. Plan a read-only source inspection and a separate derived output.
Before you begin
- Read text, field schemas and collection literals.
Choose by skill rather than age alone. Read with an adult when useful, revisit a lesson, or explore another grade.
Follow the lesson sequence
Parse Quoted CSV Fields
Keep commas inside paired quotation marks as part of one field.
About 22 minutes, plus any extended practice
Open lesson 2Read a JSON Object and Its Types
Read the exact key and distinguish its stated value type.
About 22 minutes, plus any extended practice
Open lesson 3Choose a File Mode that Preserves the Original
Use read mode for inspection and a separate destination when the original must remain.
About 22 minutes, plus any extended practice
Open lesson 4Review and transfer
After the lessons, try 4 new review cases and a practical task. Each answer has an explanation and a link back to the related lesson.
Open the unit reviewGuest answers are temporary. Keep your own paper or document; this unit does not certify completion or record a school grade.
Topic references
- 2026 CSTA PK–12 Computer Science Standards: topic reference — Programming; Data & Analysis
These references informed the topic selection. They do not certify complete standards alignment.