Unit 6: Inheritance & Polymorphism (4 weeks)
The following curriculum map is a day-by-day listing of the AP Computer Science course in chronological order. Each row represents one day of class, based on a medium-paced class. Readings from the textbook and homework assignments are included on the day when they should be assigned. Refer to the Introduction document for information about how to adjust this pacing for your specific classroom.
LP | Title | In Class | Reading | Homework |
6.00 | Test Review & Reteach | (Review test) | 9.1 | Test corrections |
6.01 01 | Inheritance Basics (day 1) | WS 6.1 Start class poster Example 6.1 | "9.2 up to ""Dividend Stock Behavior""" | Collect images |
6.01 02 | Inheritance Basics (day 2) | Finish class poster, discuss | | |
6.02 | Overriding Methods & Accessing Inherited Code | WS 6.2 | Rest of 9.2 starting from “The Object Class.” | |
6.03 | Interacting with the Object Superclass | Practice SC 9.3, 9.4, 9.9, 9.10, E 9.4; WS 6.3 Poster 6.3 | 9.3 up to “Interpreting Inheritance Code.” | |
6.04 | Polymorphism | Rest of 9.4 “Is-a Versus Has-a Relationships.” | SC 9.18, 9.20 | |
6.05 | Has-a Relationships | WS 6.5 Value Meal exercise? | 9.5 (Optional if covering Interfaces) | |
6.06 | Interfaces (optional) | [Interface examples][] | 9.6 (Optional if covering Abstract classes | Generate own class hierarchy like Financial hierarchy in book |
6.07 01 | Programming project (day 1) | PP 9.1, notebook checks | | Outline Ch. 9 |
6.07 02 | Programming project (day 2) | PP 9.1, outline checks | Read and outline Barron's Ch. 4 (8th or later: Ch. 5) | |
6.07 03 | Programming project (day 3) | PP 9.3 | | Barron's Ch. 4 (8th or later: Ch. 5) exam, self-grade |
6.07 04 | Programming project (day 4) | E 9.8 | Read and outline Barron's Ch. 3 (8th or later: Ch. 4) | |
6.07 05 | Programming project (day 5) | Barron's Ch. 3 (8th or later: Ch. 4) exam, outline checks | Review Ch. 9 | Submit questions for review |
6.07a 01 | Celebrity Lab (day 1) | Celebrity Lab Activity 1, notebook checks | | Outline Ch. 9 |
6.07a 02 | Celebrity Lab (day 2) | Celebrity Lab Activity 2, outline checks | Read and outline Barron's Ch. 4 (8th or later: Ch. 5) | |
6.07a 03 | Celebrity Lab (day 3) | Celebrity Lab Activity 3 | | Barron's Ch. 4 (8th or later: Ch. 5) exam, self-grade |
6.07a 04 | Celebrity Lab (day 4) | Celebrity Lab Activity 4 | Read and outline Barron's Ch. 3 (8th or later: Ch. 4) | |
6.07a 05 | Celebrity Lab (day 5) | Celebrity Lab Activity 5 | Review Ch. 9 | Submit questions for review |
6.07a 06 | Celebrity Lab (day 5) | Celebrity Lab Activity 5 (day 2) | Review Ch. 9 | Submit questions for review |
6.07a 07 | Celebrity Lab (day 5) | Celebrity Lab Activity 5 (day 3), outline checks | Review Ch. 9 | Submit questions for review |
6.07b | Text Excel | Text Excel Text Excel Student Guide A Text Excel Student Guide B Text Excel Student Guide C Text Excel Teacher Guide | | |
6.08 | Finding & Fixing Errors | (Fix HW) | Review Ch. 9 | Submit questions for review |
6.09 | Review | Review questions WS 6.5 Test practice | | Study |
6.99 | Unit 6 test | Test 5 Guide Test 5 Section I Test 5 Section II | | |
Test Review & Reteach | |
Objectives | Students will re-learn or strengthen content knowledge and skills from Unit 5. |
Assessments | Students will re-submit test answers with updated corrections for partial or full credit, depending on instructor preference. |
In Class | Review test |
Reading | 9.1 |
Homework | Test corrections |
Inheritance Basics (Day 1) | |
Objectives | Students will correctly define inheritance Students will use proper syntax to extend a class. Students will illustrate is-a relationships. Students will properly implement constructors of derived classes using super. |
Assessments | Students will complete a Class Hierarchy Poster as indicated in WS 6.1. |
In Class | WS 6.1 Start class poster Example 6.1 |
Reading | 9.2 up to “Dividend Stock Behavior” |
Homework | Collect images |
Inheritance Basics (Day 2) | |
Objectives | |
Assessments | |
In Class | Finish class poster Discussion |
Reading | |
Homework | |
Overriding Methods & Accessing Inherited Code | |
Objectives | Students will replace superclass behavior by writing overriding methods in the subclass. Students will write subclass methods that access superclass methods. |
Assessments | Students will add code to their Class Posters from the previous lesson. |
In Class | WS 6.2 |
Reading | Rest of 9.2 starting from “The Object Class” |
Homework | |
Interacting with the Object Superclass | |
Objectives | Students will replace superclass behavior by writing overriding methods in the subclass. Students will write subclass methods that access superclass methods. |
Assessments | Students will complete Practice questions Students will complete a worksheet. |
In Class | Practice SC 9.3–4,9–10 E 9.4 WS 6.3 Poster 6.3 |
Reading | 9.3 up to “Interpreting Inheritance Code” |
Homework | |
Polymorphism | |
Objectives | Students will define polymorphism. Students will trace the execution of methods through a class hierarchy and predict output. |
Assessments | Students will complete a Tracing Inheritance guide and complete worksheet 6.4. |
In Class | |
Reading | Rest of 9.4 “Is-a Versus Has-a Relationships” |
Homework | SC 9.18,20 |
Has-a Relationships | |
Objectives | Students will be able to identify and explain why two classes have an is-a or a has-a relationship. Students will be able to create a has-a relationship between two classes. |
Assessments | Students will complete an AP Section II question “Trio” |
In Class | WS 6.5 ValueMeal exercise |
Reading | 9.5 (Optional if covering Interfaces) |
Homework | |
Interfaces (Optional) | |
Objectives | Students will implement and use interfaces. |
Assessments | Students will complete an in-class competition. |
In Class | Interface examples Poster 6.6 |
Reading | 9.6 (Optional if covering Abstract classes) |
Homework | Generate own class hierarchy like Financial hierarchy in book |
Programming project (Day 1) | |
Objectives | Students will write complex code that uses polymorphism, and inheritance. |
Assessments | Students will submit a program electronically. |
In Class | PP 9.1 Notebook checks |
Reading | |
Homework | Outline Ch. 9 |
Programming project (Day 2) | |
Objectives | |
Assessments | |
In Class | PP 9.1 Outline checks |
Reading | Read and outline Barron's Ch. 4 (8th or later: Ch. 5) |
Homework | |
Programming project (Day 3) | |
Objectives | |
Assessments | |
In Class | PP 9.3 |
Reading | |
Homework | Barron's Ch. 4 (8th or later: Ch. 5) exam, self-grade |
Programming project (Day 4) | |
Objectives | |
Assessments | |
In Class | EX 9.8 |
Reading | Read and outline Barron's Ch. 3 (8th or later: Ch. 4) |
Homework | |
Programming project (Day 5) | |
Objectives | |
Assessments | |
In Class | Barron's Ch. 3 (8th or later: Ch. 4) exam, Outline checks |
Reading | Review Ch. 9 |
Homework | Submit questions for review |
Celebrity Lab (Day 1)_ | |
Objectives | Students will complete a long-form lab, using classes, objects, two dimensional arrays of objects, array traversing algorithms, program analysis, while/for loops. |
Assessments | Students will complete the College Board’s AP CS A Celebrity Lab. Students will answer end of activity Check your understanding and open-ended activity. |
In Class | Celebrity Lab Activity 1 Notebook checks |
Reading | |
Homework | Outline Ch. 9 |
Celebrity Lab (Day 2)_ | |
Objectives | |
Assessments | |
In Class | Celebrity Lab Activity 2 Outline checks |
Reading | Read and outline Barron's Ch. 4 (8th or later: Ch. 5) |
Homework | |
Celebrity Lab (Day 3)_ | |
Objectives | |
Assessments | |
In Class | Celebrity Lab Activity 3 |
Reading | |
Homework | Barron's Ch. 4 (8th or later: Ch. 5) exam, self-grade |
Celebrity Lab (Day 4)_ | |
Objectives | |
Assessments | |
In Class | Celebrity Lab Activity 4 |
Reading | Read and outline Barron's Ch. 3 (8th or later: Ch. 4) |
Homework | |
Celebrity Lab (Day 5)_ | |
Objectives | |
Assessments | |
In Class | Celebrity Lab Activity 5, Outline checks |
Reading | Review Ch. 9 |
Homework | |
Celebrity Lab (Day 6)_ | |
Objectives | |
Assessments | |
In Class | Celebrity Lab Activity 5 (day 2), Outline checks |
Reading | Review Ch. 9 |
Homework | |
Celebrity Lab (Day 7)_ | |
Objectives | |
Assessments | |
In Class | Celebrity Lab Activity 5 (day 3), Outline checks |
Reading | Review Ch. 9 |
Homework | Submit questions for review |
Lesson 6.07b | Text Excel |
In Class | Text Excel Text Excel Student Guide A Text Excel Student Guide B Text Excel Student Guide C Text Excel Teacher Guide |
Finding & Fixing Errors | |
Objectives | Students will find errors in their returned homework assignments, and correct their code. |
Assessments | Students will re-submit all homework assignments with corrected answers. |
In Class | Fix homework |
Reading | Review Ch. 9 |
Homework | Submit questions for review |
Review | |
Objectives | Students will identify weaknesses in their Unit 6 knowledge. |
Assessments | Students will create a personalized list of review topics to guide tonight’s study session. |
In Class | Review questions WS 6.5 Test practice |
Reading | |
Homework | Study |
Unit 6 Test | Inheritance and Polymorphism |
Guide | |
In Class | Test 5 Section I Test 5 Section II |
WS — Worksheet
SC — Self-Check problem (in the textbook)
EX — Exercise (in the textbook)
PP — Programming Project (in the textbook)
