Chatty · Cross-course pattern map
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2026-08-16T00:00:00.000Z
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Abstract patterns across Maths, Stats, CT, and Python. # 29.
29. The cross-course pattern map
This is where the four courses start becoming one system rather than four subjects.
| Abstract pattern | Maths | Stats | CT | Python |
|---|---|---|---|---|
| Classification | Function types | Data types | Datatypes | Types/conditions |
| Representation | Graph/equation | Table/graph | Matrix/graph | List/dict |
| Counting | Algebraic cases | Combinatorics | Iterations | Loops |
| Repetition | Sequences | Repeated trials | Iteration | for/while |
| Selection | Function constraints | Conditional events | Filtering | if |
| Accumulation | Polynomial operations | Frequency/sums | Accumulator | Variables + loops |
| Relationships | Relations/functions | Association | Graph edges | Dictionary/collections |
| Graphs | Function graphs | Scatterplots | Graph theory | Data structures |
| Transformation | Functions/composition | Probability transformations | Procedures | Functions/code |
| Local change | Derivative | — | Algorithm state change | Iteration state change |
This is the deeper structure I want you to eventually see.