Session - 8 / Access Specifiers

Introduction (5 minutes):

Sustainable Active Learning Method: Jigsaw Activity (20 minutes):

Application and Practice (15 minutes):

Assessment (10 minutes):

Closure (5 minutes):

Access Specifiers in Java

Objective:

Students will apply the concepts of access specifiers (public, private, protected, and default) to solve simple problems related to classes and objects.

Materials Needed:

• Whiteboard or projector for class discussion

• Handout with sample code snippets (optional)

Introduction (5 minutes):

1.     Hook: Begin by asking students a question related to access specifiers, such as “What are access specifiers in Java, and why are they important?”

2.     Briefly introduce the concept of access specifiers and their role in controlling the visibility of class members (fields, methods, constructors).

Sustainable Active Learning Method: Jigsaw Activity (20 minutes):

1.     Divide students into small groups (jigsaw groups). Each group will focus on one type of access specifier (public, private, protected, or default).

2.     Assign each group a specific access specifier and provide them with relevant materials (e.g., textbook sections, online resources).

3.     In their groups, students become experts on their assigned access specifier, discussing its features, use cases, and examples.

4.     After the expert discussion, reorganize the groups so that each new group has one representative from each original group (mixed jigsaw groups).

5.     In the mixed jigsaw groups, students share their expertise and teach each other about their assigned access specifiers.

Application and Practice (15 minutes):

1.     Provide a few code snippets (e.g., class definitions, method declarations) with varying access specifiers.

2.     Ask students to analyze each snippet and identify the access specifiers used.

3.     Discuss the implications of these choices in terms of visibility and encapsulation.

Assessment (10 minutes):

1.     Group Quiz (Think-Pair-Share Assessment):

o Each mixed jigsaw group creates a quiz question related to access specifiers (e.g., “What access specifier would you use for a class member that should only be accessible within the same package?”).

o Groups exchange questions and answer them collaboratively.

o Finally, groups share their questions and answers with the class.

Closure (5 minutes):

1.     Recap the key points discussed during the lesson.

Emphasize the importance of choosing appropriate access specifiers in real-world programming scenarios.