Grade 3 - Division Unit
The Division Unit involves identifying a variety of models to represent the process of division in order to learn how to use it to solve problems. Questions to answer may include:
- How do division situations differ from subtraction situations?
- How do equal-sized groups model division situations in the world outside the classroom? What real-world examples can you think of in which equal-sized groups model division?
- How do arrays and area models represent division situations in the world outside the classroom? What real-world examples can you think of in which arrays can be used to solve division problems?
- What happens if there are leftovers when using division?
- Given a division equation, how can you create a situation to match it?
Math Concepts and Skills:
The student develops and uses strategies for dividing whole numbers in order to solve problems.
The student:
- finds a quotient using the relationship between multiplication and division such as the quotient of 32 รท 8 can be found by determining what factor makes 32 when multiplied by 8.
- determines the number of objects in each group when a set of objects is split into equal shares.
- decides if a number is even or odd by using divisibility rules.
Summative Assessment Task
Students develop four division equations for dividing tomatoes in to baskets to be sold.
Instructional Tasks/Formative Assessments
Students divide an equal share of pencils in five pencil boxes.
Students write a division task to match a number sentence.
Students design rectangular candle boxes for the Fancy Candle Company.
Students determine a way to find how many spiders or crickets can live in a house.