Structures of Multiplication and Division

1
Structures of Multiplication and Division

• Equal Groups Whole Unknown (Multiplication)
• Equal Groups Size of Groups Unknown (Partition
  Division)
• Equal Groups Number of Groups Unknown
  (Measurement Division)
• Comparison Product Unknown (Multiplication)

• Comparison Set Size Unknown (Partition Division)
• Comparison Multiplier Unknown (Measurement
  Division)
• Combinations Product Unknown
• Combinations Size of a Set Unknown

2
Multiplication can be

• Repeated Addition
• (sets of equal amounts)
• Rate (jumps on a number line, speed,)
• Arrays (area models)

3
Division can be

• Repeated Subtraction (sets)
• The Number of Sets
• Fair-Sharing
• The Number in Each Set
• Rate
• Arrays ( the missing dimension)