November Math
This month, we will begin our unit of study in multiplication and division. Students will build upon their knowledge of place value that they learned throughout the first unit, as well as use visual representations to solve multiplication and division problems with multi-digit numbers. As a key area of focus for fourth grade, this module works to develop students ability to reason about the methods and models chosen to solve problems with multi-digit factors and dividends.
Students will begin by investigating formulas for area and perimeter. They will then move on to using number discs and the place value chart to multiply single digit numbers by multiples of 10, 100 and 1,000. Later, they will be able to multiply two digit multiples of ten by each other. The students will be exposed to further practice with place value charts and area models. See below for an example of each:
Solving a multiplication problem using a place value chart:
Solving a multiplication problem using area model:
New or Recently Introduced Vocabulary for this unit:
- Associative property
- Composite Number
- Distributive property
- Divisor
- Partial Product
- Prime Number
- Remainder
Familiar terms:
- Area
- Bundling
- Compare
- Factors
- Multiple
- Perimeter
- Product
- Quotient
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