Computer Science A

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Week 24 CSA FRQ Teaching & Homework Summary

CSA FRQ Teaching & Homework Summary

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CSA FRQ Teaching & Homework Experience Summary

Executive Overview

This document provides a formal summary of all teaching and homework experiences related to AP Computer Science A Free Response Questions (FRQs). The program follows a structured progression from foundational concepts through AP-level problem-solving, with 7 structured homework assignments plus supplementary practice materials.

I. Program Structure & Progression

Pedagogical Approach

  • Foundation Phase: Type casting, arithmetic operations, and basic FRQ-style problems
  • Intermediate Phase: Class design, constructors, and ArrayList operations
  • Advanced Phase: 2D arrays, advanced algorithms, and complex object manipulation
  • Integration Phase: Study guides combining multiple FRQ concepts

Learning Objectives

Students master:

  • Object-oriented design and implementation
  • Array and collection manipulation
  • Algorithm design and implementation
  • Pre/postcondition analysis
  • Loop invariants and edge-case handling
  • Code documentation and explanation

II. Structured Homework Assignments (7 Total)

Homework 1: Scoreboard Class (2024 FRQ #2)

Date Published: February 4, 2026
Key Concepts:

  • Class design and state management
  • Getter and setter methods
  • Array operations

Homework 2: Crossword Puzzle Labeling (2016 FRQ #3)

Date Published: February 4, 2026
Key Concepts:

  • 2D array traversal
  • Row and column analysis
  • Conditional logic and flow control

Homework 3: 2024 FRQ #1

Date Published: February 4, 2026
Key Concepts:

  • Class implementation
  • Method design
  • Object state management

Homework 4: LightBoard Class (2019 FRQ #4)

Date Published: February 22, 2026
Key Concepts:

  • Boolean 2D arrays
  • State queries and modifications
  • Efficiency considerations
  • Loop logic and conditions

Homework 5: Digits Class

Date Published: March 15, 2026
Key Concepts:

  • Constructor implementation
  • Array traversal and processing
  • Integer arithmetic (remainder operations)
  • Data structure design

Homework 6: WordChecker Class

Date Published: March 20, 2026
Key Concepts:

  • String methods and manipulation
  • ArrayList operations and iteration
  • List processing and filtering
  • Algorithm implementation

Homework 7: Successors Class (2D Array Processing)

Date Published: March 29, 2026
Key Concepts:

  • 2D array traversal and access
  • Neighbor analysis and comparison
  • ArrayList construction from 2D data
  • Advanced array manipulation

III. Foundation & Supplementary Practice

Foundation Practice Modules

Thinkers (Unit 1.5)

  • Type casting between primitives
  • Percentage calculations
  • Remainder operations
  • FRQ-style problem solving

Applicators (Unit 1.9)

  • FRQ #1 and #2 practice problems
  • Initial exposure to College Board FRQ formats
  • Fundamental problem-solving patterns

Study Materials & Integration

Study Guide - CPT Features

  • Reflection on FRQ concepts applied to collaborative projects
  • Self-grading using FRQ language and criteria
  • Feature implementation documentation

Practice Final Review

  • Comprehensive review combining CPT and FRQ knowledge
  • Exam preparation strategies
  • Integrated problem-solving

IV. Topics Mastered Through FRQs

Core Object-Oriented Concepts

  • Class design and structure
  • Constructor patterns and initialization
  • Encapsulation and state management
  • Method design and implementation

Data Structure Operations

  • Arrays: 1D and 2D traversal, neighbor analysis, bounds checking
  • ArrayLists: Construction, iteration, filtering, transformation
  • String Processing: Method application, searching, manipulation

Algorithm Design

  • Loop invariants and verification
  • Edge case handling and boundary conditions
  • Pre/postconditions
  • Efficiency analysis

Code Quality

  • Documentation standards
  • Readable code structure
  • Defensive programming

V. Assessment & Learning Outcomes

Skills Verified

✓ Full class implementation from specifications
✓ Complex array and collection manipulation
✓ Algorithm design and implementation
✓ Debugging and testing strategies
✓ Code explanation and documentation

FRQ Problem Types Covered

  • Type 1: Single method implementation in existing class
  • Type 2: Complete class design and implementation
  • Type 3: 2D array analysis and processing
  • Type 4: Complex algorithm design with multiple methods

VI. Resource Organization

Published Content Locations

  • Teaching Materials: _posts/CSA/ directory
  • Source Notebooks: _notebooks/CSA/ directory (Jupyter-based)
  • Foundation Practice: _posts/homework/ directory

Access & Reference

  • All homework assignments include:
    • Problem statement and requirements
    • Solution code with explanations
    • Key learning points
    • Extension challenges
  • All materials follow AP Computer Science A standards

VII. Progression Summary

Foundation → Intermediate → Advanced → Integration
   Phase        Phase        Phase      Phase
    ↓            ↓             ↓          ↓
Unit 1.5-1.9  HW 1-3      HW 4-7    Study Guides
Type casting  Classes     Complex   & Review
Arithmetic    Arrays      Arrays    Materials
Operations    Basics      Algorithms

VIII. Conclusion

The CSA FRQ program provides comprehensive, structured instruction in object-oriented programming and algorithm design. Through 7 progressive homework assignments, foundation modules, and integration activities, students develop mastery of:

  • Problem Decomposition: Breaking complex requirements into solvable pieces
  • Implementation Skills: Writing production-quality Java code
  • Analytical Thinking: Understanding pre/postconditions and invariants
  • Professional Communication: Documenting code effectively

All materials are published and accessible for reference, review, and extension learning.

Document Version: 1.0
Last Updated: March 29, 2026
Total Hours of Instruction: 14+ weeks
Assessment Path: Foundation → Homework → Integration → Mastery

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