Computer Science 10
Year 10 (GCSE, OCR J277)
Week A · 5–9 October
Half Term homework: start reading Sections 3 & 4.
No handoutP5 last review · P6 Data Representation test.
No handoutWeek B · 28 September – 2 October
Test review: Data Representation.
Compression — why compress, lossless and lossy.
Week A · 21–25 September
Sound — sampling, sample rate and bit depth, then file size.
Quiz 01 returned. Characters — ASCII and Unicode. Then pixel art — colour depth.
Week B · 14–18 September
Quiz 01 — Data Representation. Then feedback and self-marking.
No handoutDo Now 03 — all five conversions, then binary addition, overflow and shifts.
Week A · 7–11 September
L5 — Hexadecimal Practice 2: binary, denary and hex rebuilt by hand, then hex colour codes.
L4 — Hexadecimal: base 16, hex place value, and the binary ↔ hex nibble trick. Booklet pp. 9–14.
Week B · 31 August – 4 September
L3 — §1.2.4 opens. Collected Do Now on units (retrieval on pp. 2–4), then place value: denary as base 10, binary as base 2, and conversion both ways. Booklet pages 5–8.
No handoutL2 — Data Representation opens. §1.2.3 Units: why data must be binary; bit, nibble, byte; the kB→PB ladder and capacity calculations. Booklet pages 2–4.
Week A · 24–28 August
Course expectations