Creating Records

Overview

In this lesson, students will create a new refernce type by creating a record.

Learning Objectives

• 1.1.B.6 Distinguish between mutable and immutable data types.
• 1.1.B.7 Create new data types for immutable data using records.
• 1.1.B.8 Create instances of records.

Skills

• S1.B Explain the impact design has on security.
• S1.C Explain the impact design has on data storage.
• S2.A Write program code and implement algorithms.
• S2.C Analyze an algorithm and program code for correctness.

Student Outcomes

Students will be able to:

• recognize when data would need to change during the running of a program.
• recognize when data should not change during the running of a program.
• create a new type by creating a record.
• create an object of a record type.

Duration: 2 class periods

Resources

• Learn: Introduction to Records
• Practice: Creating Record and Record Objects

Learn

Either as a group or on their own, have students review tutorial: Learn: Introduction to Records

Debrief: If completed independently, reserve time to conduct a debrief with students to ensure they do not have any questions.

Practice

• Have students complete practice exercises: Practice: Creating Record and Record Objects
• Either have students record their practice to collect and provide feedback or review the practice as a whole group.

Wrap-up / Extension

Ask students to brainstorm other immutable data that could be represented using a new record.

Next Lesson

Lesson Plan: Introduction to Arithmetic Expressions