Unit 2.3 Solving Problems Involving Money
Learning Objectives
Students will be able to:
• Find the sums and differences between collections of dollars, quarters, dimes, nickels, and pennies.
• Solve word problems involving dollars, quarters, dimes, nickels, and pennies.
• Use $ and ¢ notation appropriately.
Essential Questions
• How is adding 95 + 28 like adding $0.95 + $0.28?
• How can you represent the amount sixty-five cents in different ways? • How did your work with skip counting prepare you for working with money?
• What strategy did you use to solve the problem? Explain your thinking.
Key Vocabulary
quarter value notation dollar sign cent sign
Common Core State Standards for Mathematical Content
Measurement and Data 2.MD
Work with time and money.
2.MD.8 Solve word problems involving dollar bills, quarters, dimes, nickels, and pennies, using $ and ¢ symbols appropriately. Example: If you have 2 dimes and 3 pennies, how many cents do you have?
Mathematical Practices to Be Integrated
1 Make sense of problems and persevere in solving them.
• Use coins and drawings to represent problems.
• Check for reasonableness of answers and alternate solution paths.
8 Look for and express regularity in repeated reasoning.
• Utilize the patterns in skip counting to add and subtract coins.
• Apply general strategies to computation of whole numbers and carry over those strategies to computation with money.
Students will be able to:
• Find the sums and differences between collections of dollars, quarters, dimes, nickels, and pennies.
• Solve word problems involving dollars, quarters, dimes, nickels, and pennies.
• Use $ and ¢ notation appropriately.
Essential Questions
• How is adding 95 + 28 like adding $0.95 + $0.28?
• How can you represent the amount sixty-five cents in different ways? • How did your work with skip counting prepare you for working with money?
• What strategy did you use to solve the problem? Explain your thinking.
Key Vocabulary
quarter value notation dollar sign cent sign
Common Core State Standards for Mathematical Content
Measurement and Data 2.MD
Work with time and money.
2.MD.8 Solve word problems involving dollar bills, quarters, dimes, nickels, and pennies, using $ and ¢ symbols appropriately. Example: If you have 2 dimes and 3 pennies, how many cents do you have?
Mathematical Practices to Be Integrated
1 Make sense of problems and persevere in solving them.
• Use coins and drawings to represent problems.
• Check for reasonableness of answers and alternate solution paths.
8 Look for and express regularity in repeated reasoning.
• Utilize the patterns in skip counting to add and subtract coins.
• Apply general strategies to computation of whole numbers and carry over those strategies to computation with money.