Problem Solving Strategies student can use this unit would include: - Finding and using a pattern - Using computation - Using estimation - Making and interpreting a graph - Writing a number sentence - Using logical reasoning Specifically to lessons: 2.1, 2.2 and 2.4 - Use a pattern to develop a rule for writing numbers in exponential notation and multiplying powers of 10 2.3 - Solve number stories by rounding measures to the same precision and computing sums and differences fo decimal numbers 2.3 - Solve number stories involving sports records 2.3 - Make and interpret a step graph to calculate phone-call costs 2.5, 2.7, 2.11 - Write equivalent names for numbers to estimate and mentally compute products and quotients of whole and decimal numbers 2.8 - Use logical reasoning to interpret remainders of division number stories