| name | keyword-bank |
| description | Chapter-specific keyword banks. Examiners scan for NCERT keywords when awarding marks. Provides keyword lists per chapter and checks answer coverage. |
Keyword Bank — Marks-Per-Word Optimizer
How Examiners Mark
Examiners mark 50-100 papers/hour. They scan for keywords, not read every word. Each value point has 2-3 keywords. Present = mark awarded. Missing = mark lost.
Q: "Explain nutrition in Amoeba" (3M)
Value Point 1 (1M): "holozoic" + "pseudopodia"
Value Point 2 (1M): "food vacuole" + "engulfs"
Value Point 3 (1M): "digestive enzymes" + "egestion"
Student A (vague): "Amoeba eats by surrounding food..." → 1/3
Student B (keywords): "holozoic nutrition...pseudopodia...food vacuole..." → 3/3
Science Keywords (high-value selection)
Electricity: current, potential difference, resistance, Ohm's law, series,
parallel, resistivity, power, kWh, ammeter, voltmeter, Joule's heating law
Life Processes: autotrophic, heterotrophic, photosynthesis, stomata, chlorophyll,
peristalsis, villi, alveoli, haemoglobin, nephron, double circulation
Chemical Reactions: balanced equation, exothermic, endothermic, decomposition,
displacement, double displacement, oxidation, reduction, redox, corrosion
Heredity: gene, allele, dominant, recessive, genotype, phenotype, Mendel,
F1/F2 generation, sex determination, XX, XY, homozygous, heterozygous
Light: focal length, radius of curvature, mirror formula, magnification,
power of lens, dioptre, dispersion, spectrum, scattering, Tyndall effect
Math Keywords
Quadratic: discriminant, roots, D=b²-4ac, real/equal/distinct, factorization
AP: common difference, nth term, a+(n-1)d, Sn=n/2[2a+(n-1)d]
Triangles: similar, BPT, corresponding sides, Pythagoras, AAA, SAS, SSS
Probability: favourable outcomes, total outcomes, P(E)+P(Ē)=1, complementary
Statistics: mean, median, mode, cumulative frequency, ogive, class interval
SST Keywords
History: nationalism, satyagraha, boycott, swadeshi, Rowlatt Act, Dandi March
Economics: per capita income, HDI, GDP, collateral, MNC, globalisation, COPRA
PolSci: power sharing, federalism, coalition, communalism, secularism
Geography: alluvial, kharif, rabi, subsistence, conventional, sustainable
/keyword-pass Process
INPUT: subject + question + answer
→ Load chapter keyword bank
→ Check which keywords ARE present vs MISSING
→ Show coverage percentage
→ Suggest where to insert missing keywords
OUTPUT:
Keywords: 4/6 (67%) ⚠️
✅ photosynthesis, chlorophyll, CO₂, glucose
❌ Missing: stomata, autotrophic nutrition
Fix: Add "autotrophic nutrition" in opening line
