Multi-Digit Multiplication:
Learning Objective:
4.NBT.5 Multiply a whole number of up to three digits by a one-digit whole number, and multiply up to two two-digit numbers, with place value understanding using area models, partial products, and the properties of operations. Use models to make connections and to develop the algorithm.
Essential Understandings:
1. Place value and the properties of multiplication relate to multi-digit multiplication.
2. The relationship between the different models of multiplication and the equations.
Essential Question:
4.NBT.5 Multiply a whole number of up to three digits by a one-digit whole number, and multiply up to two two-digit numbers, with place value understanding using area models, partial products, and the properties of operations. Use models to make connections and to develop the algorithm.
Essential Understandings:
1. Place value and the properties of multiplication relate to multi-digit multiplication.
2. The relationship between the different models of multiplication and the equations.
Essential Question:
- How does an understanding of the place value system help when multiplying multi-digit numbers?
- How can you apply what you have learned about area/arrays to multiplication?
- multiplication, multiply, multiplier, factor, product, properties of multiplication (associative, commutative, distributive), decompose, array/area model, partial products, expanded notation, algebraic notation, algorithm,
|
|
Multi-Digit Multiplication Strategies:
Multi-Digit Multiplication with Base Ten Pieces:
|
Multi-Digit Multiplication with Rectangular Arrays/Area Model:
|
Multi-Digit Multiplication with Expanded Notation:
|
|
|
|
Songs and Videos:
|
|
|
|