Grade 4 Unit 4: Multi-Digit Multiplication and Division (4 weeks)
Standards
4.OA.1 Interpret a multiplication equation as a comparison, e.g., interpret 35 = 5 x 7 as a statement that 35 is 5 times
as many as 7 and 7 times as many as 5. Represent verbal statements of multiplicative comparisons as multiplication
equations.
4.OA.2 Multiply or divide to solve word problems involving multiplicative comparison, e.g., by using drawings and
equations with a symbol for the unknown number to represent the problem, distinguishing multiplicative comparison
from additive comparison. (See CCLS Glossary, Table 2.)
4.OA.3 Solve multistep word problems posed with whole numbers and having whole-number answers using the four
operations, including problems in which remainders must be interpreted. Represent these problems using equations
with a letter standing for the unknown quantity. Assess the reasonableness of answers using mental computation and
estimation strategies including rounding.
4.OA.4 Find all factor pairs for a whole number in the range 1–100. Recognize that a whole number is a multiple of
each of its factors. Determine whether a given whole number in the range 1–100 is a multiple of a given one-digit
number. Determine whether a given whole number in the range 1–100 is prime or composite.
4.MD.3 Apply the area and perimeter formulas for rectangles in real world and mathematical problems. For example,
find the width of a rectangular room given the area of the flooring and the length, by viewing the area formula as a
multiplication equation with an unknown factor.
4.NBT.1 Recognize that in a multi-digit whole number, a digit in one place represents ten times what it represents in
the place to its right. For example, recognize that 700 ÷ 70 = 10 by applying concepts of place value and division.
4.NBT.5 Multiply a whole number of up to four digits by a one-digit whole number, and multiply two two-digit
numbers, using strategies based on place value and the properties of operations. Illustrate and explain the calculation
by using equations, rectangular arrays, and/or area models.
4.NBT.6 Find whole-number quotients and remainders with up to four-digit dividends and one-digit divisors, using
strategies based on place value, the properties of operations, and/or the relationship between multiplication and
division. Illustrate and explain the calculation by using equations, rectangular arrays, and/or area models.
Revised July 21, 2014
Align assessment questions
(to be completed by Coaches)
Revised July 21, 2014
Unit Objectives
4.OA.1
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I can explain how a multiplication equation can be interpreted as a comparison.
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I can write an equation for a situation involving multiplicative comparisons as multiplication equation.
4.OA.2
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I can explain the difference between multiplicative (as many times as) and additive (more) comparisons.
I can determine when to multiply or divide in word problems.
I can solve a multiplication or division word problem involving multiplicative comparisons using drawn and equations.
I can write an equation using a variable to represent an unknown.
4.OA.3
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4.OA.4
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I can choose the correct operation to perform at each step of a multi-step word problem.
I can interpret remainders in word problems.
I can write equations using a variable to represent the unknown.
I can use mental math or estimation strategies to check if my answer is reasonable.
I can define factors and multiples.
I can list all of the factor pairs for any whole number in the range 1-100.
I can determine multiples of a given whole number (1-100).
I can define prime and composite.
I can determine if a number is prime or composite.
4.MD.3
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I can explain the area and perimeter formula.
I can use the formulas for area and perimeter to solve real-world problems.
Revised July 21, 2014
4.NBT.1
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I can explain the value of each digit in a multi-digit number as ten times the digit to the right.
4.NBT.5
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I can multiply a multi-digit number by a one-digit number.
I can demonstrate multiplication of two two-digit numbers using rectangular arrays, place value, and the area model.
I can solve multiplication of two two-digit numbers using properties of operations and equations.
I can explain my chosen strategy.
4.NBT.6
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I can demonstrate division of a multi-digit number by a one-digit number using place value, rectangular arrays, and area model.
I can solve division of a multi-digit number by a one-digit number using properties of operations and equations.
I can explain my chosen strategy.
Revised July 21, 2014
Essential Questions:
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(OA.1, 2, 3, 4) In what ways can operations affect numbers?
(OA.1, 2, 3, 4) How can different strategies be help when solving a
problem?
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(MD.3) How does “what” we measure influence “how” we measure?
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(MD.3) Why display data in different ways?
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(NBT.1) How does a digits position affect its value?
Vocabulary
Associative property [96 = 3 × (4 × 8) = (3 × 4) × 8]
Composite number
Distributive Property [64 × 27 = (60 × 20) + (60 × 7) + (4 × 20) + (4 × 7)]
Divisor
Partial product
Prime number
Remainder
Factors
Factor pairs
Multiplicative comparison
Additive comparison
Materials
Personal white boards
Orange crayons, red crayons
Assessments
Unit 4 District Assessment (Use Eureka Module 3 Assessment)
Math Tasks
Revised July 21, 2014
Revised July 21, 2014
Revised July 21, 2014