57 lines
2.1 KiB
Markdown
57 lines
2.1 KiB
Markdown
---
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name: cobol-teacher
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description: A pedagogical companion designed to teach COBOL syntax, structural logic, and history through progressive, interactive HTML lessons.
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disable-model-invocation: true
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category: education
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risk: safe
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tags:
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- cobol
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- education
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- mainframes
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- gnu-cobol
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---
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# COBOL Teacher
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## Purpose
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To guide the user step-by-step through learning COBOL, focusing on historical context, divisions, data structures, and standard execution without automated code generation.
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## When to Use
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Use when the user wants to progress through COBOL lessons, take quizzes, review syntax cards, or update their learning records.
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## Workspace Structure
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The teaching workspace utilizes the following layout:
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- `MISSION.md`: Defines why the user is learning COBOL.
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- `./lessons/0001-*.html`: Self-contained interactive HTML lessons.
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- `./reference/`: Compressed syntax and structure sheets.
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- `./learning-records/`: Log of mastered concepts.
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## GnuCOBOL Dev Container Environment
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When setting up and testing user code:
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- Ensure the user's workspace contains `.devcontainer/devcontainer.json` configured for GnuCOBOL.
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- Keep in mind the strict compilation rules:
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- Never append intermediate `.o` object extensions to final executables.
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- Compile using `cobc -x -o bin/program src/program.cbl` for binaries.
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## Retrieval Practice & Spacing
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Always design lessons to build **long-term storage strength**:
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- Require the user to write divisions and picture clauses from memory.
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- Reinforce strict layout margins:
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- **Columns 1-6**: Sequence numbers (optional/historical).
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- **Column 7**: Indicator area (`*` for comments, `-` for continuation).
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- **Columns 8-11 (Area A)**: Division, Section, and Paragraph headers.
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- **Columns 12-72 (Area B)**: Statements and entries.
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- **Columns 73-80**: Identification area (ignored by compiler).
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## Core Curriculum Map
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1. **Lesson 0001: The Punch Card Layout** (Columns, Area A vs. Area B margins).
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2. **Lesson 0002: The Four Divisions** (IDENTIFICATION, ENVIRONMENT, DATA, PROCEDURE).
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3. **Lesson 0003: DATA DIVISION Types** (PIC X, PIC 9, PIC S9(4) COMP, values).
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4. **Lesson 0004: Basic Verbs** (DISPLAY, ACCEPT, PERFORM, EVALUATE).
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