Topic 4: Use Strategies and Properties to Multiply by 2-Digit Numbers
4-1 Mental Math - Multiply by Multiples of 10
Goal: Today we will use mental-math strategies to multiply 2-digit by 2-digit multiples of 10.
4-2 Use Models to Multiply 2-Digit Numbers by Multiples of 10 Goal: We can use modles and properties of operations to help multiply.
4-3 Estimate: Use Rounding Goal: We can estimate products by rounding the factors.
4-4 Estimate: Use Compatible numbers Goal: We can use compatible numbers to estimate products when multiplying two digit numbers.
4-5 Arrays and Partial Products Goal: We can use area models and properties of operations to multiply 2-digit numbers.
4-6 Multiply Using Distributive Property. Goal: We can use area models and properties of operations to multiply 2-digit numbers.
4-7 Use Partial Products to Multiply 2-Digit Numbers Goal: We can use place value and partial products to multiply.
4-8 Multiply 2-Digit by Multiples of 10 Goal: Use area models and place-value strategies to multiply by multiples of 10
4-9 Multiply 2-Digit by 2-Digit Numbers Goal: Use area models, place-value strategies, and properties of operations to help multiply 2-digit numbers.
4-10 Continue to Multiply by 2-Digit Numbers Goal: Use area models and algorithms to multiply 2-digit by 2-digit numbers.
Goal: Make sense of problems and keep working if I get stuck.
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Vocabulary
Review:
Algorithm - process for solving a problem Product - the answer to a multiplication problem Array - shows the number of objects in rows and columns Variable - a symbol or letter that stands for a number New: Compatible Numbers - numbers that are easy to compute mentally Test Review Day 1
Goal: Review all strategies when multiplying two digit numbers.
Test Review Day 2 Goal: Review all strategies when multiplying two digit numbers.
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