A
Block A · steps 1 to 7
Values, input and output
Variables, input that always arrives as text, and converting it.
Not started0 of 7 passed
Cambridge A Level 9618 · Paper 4
Paper 4, in Python
One course, block by block. Read the notes for a block, then write each step's program and have it checked against the exact output.
- ReadNotes with step-through traces. Fine on a phone.
- PractiseWrite, run and check. Best on a laptop.
- Stuck?Every step opens the notes that teach it.
Open now
Blocks A to C · steps 1 to 28B
Block B · steps 8 to 16
Decisions
One equals puts a value in, two equals asks a question, and the operators pseudocode does not share.
Not started0 of 9 passed
C
Block C · steps 17 to 28
Loops that count, and loops inside loops
Tracing a loop, every form of range, and why the inner loop finishes first.
Not started0 of 12 passed
On the way
Blocks D to R · steps 29 to 151 · coming soonThe rest of the course, in the order you will meet it. Each block opens here when it is ready.
- DLoops that wait, and refusing bad input12 steps
- EStrings13 steps
- FFunctions7 steps
- GLists10 steps
- HSorting2 steps
- ITwo dimensions9 steps
- JFiles9 steps
- KRecursion3 steps
- LSearching and sorting by hand7 steps
- MObjects, part one7 steps
- NObjects, part two: containment and inheritance5 steps
- OFiles into objects, and exceptions6 steps
- PRecursion, fused4 steps
- QThe glue4 steps
- RThe data structures25 steps
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