Problem Solving Strategies students might use in this unit include: - Acting out the problem - Writing algebraic expressions - Identifying and using patterns - Using data in tables - Drawing and using pictures and graphs - Using estimation - Using computation Specifically to Lessons: 4.1, 4.6 - Use pictures and paper folding to find equivalent fractions and products 4.2 - Encourage students to use number sense when comparing fractions 4.3 - Use parts of a square to model the addition of fractions 4.5 - Write algebraic expressions and solve addition and subtraction number stories to calculate the area of oceans and lakes 4.4, 4.5 - Estimate sums and differences of fractions and mixed numbers 4.6 - Use special cases to develop a fraction multiplication algorithm 4.10 - Use data to calculate sector size on a circle graph 4.11 - Solve percent problems involving discounts and sale prices