1. The content provided is a detailed schedule for mathematics lessons over several months and weeks, covering various algebra, geometry, and arithmetic topics. 2. The problem appears to be an overview or index rather than a specific math problem to solve. 3. For a demonstration, let's extract a sample topic and formulate a basic problem to illustrate a math procedure. Example: From Week 7 October - "Square root and cube roots. Limit only to perfect square and perfect cube" 1. State the problem: Find the square root of 81 and the cube root of 27. 2. Square root of 81: Since 81 = $9^2$, the square root is 9. 3. Cube root of 27: Since 27 = $3^3$, the cube root is 3. Final answer: - Square root of 81 is 9. - Cube root of 27 is 3.