Create a 15-slide classroom presentation for Class 12 Macroeconomics students on "Measurement of National Income". 1. Use the uploaded NCERT chapter as the primary source. 2. Keep text concise: max 4-5 bullet points per slide. 3. Include all key formulas: GDP, GNP, NNP, NDP, NFIA, Factor Cost vs Market Price. 4. Dedicate one slide to the "Value Added Method" with a numerical example (Farmer-Miller-Baker). 5. Dedicate one slide to the three methods (Product, Income, Expenditure). 6. End with "Common Exam Mistakes" (e.g., double counting, transfer payments). 7. Tone: Educational, clear, and exam-focused.