Unit 2

Multiplication & Division of Whole Numbers

Use the four operations with whole numbers to solve problems.

MGSE4.OA.1a (Interpret multiplication equations as comparisons)

K1: I can explain multiplication strategies.

R1: I can interpret multiplication equations by comparing 18 = 3 x 6 and 6 x 3.

MGSE4.OA.1b (Represent verbal multiplicative comparisons)

R1: I can verbalize comparisons using multiplication as an equation.

MGSE4.OA.2 (Multiplicative comparison word problems)

K1: I can multiply or divide to solve word problems.

K2: I can describe multiplicative comparison.

K3: I can describe additive comparison.

R1: I can analyze and solve word problems involving multiplicative comparison.

R2: I can choose and use representations to model problems involving multiplicative comparison.

R3: I can explain the difference between multiplicative comparison and additive comparison.

MGSE4.OA.3 (Addition and subtraction multistep word problems)

K1: I can divide whole numbers with and without remainders.

R1: I can write equations to represent multi-step word problems with variables. That means a letter stands for the unknown quantity or number.

R2: I can interpret multi-step word problems (with and without remainders) and choose the correct operation to solve.

R3: I can determine whether my answer is reasonable using mental math, estimation strategies, and rounding.

Gain familiarity with factors and multiples.

MGSE4.OA.4 (Factor pairs)

K1: I can identify prime and composite numbers.

K2: I can evaluate whole numbers to determine if they are prime or composite.

K3: I can list factors for any number up to 100.

K4: I can tell that a whole number is a multiple of each of its factors. That means 12 is a multiple of 2, 3, 4, and 6.

R1: I can determine if a number up to 100 is a multiple of a one-digit number.

Generate and analyze patterns.

MGSE4.OA.5 (Number shape patterns)

K1: I can identify number or shape patterns.

R1: I can create number or shape pattern that follows a given rule.

R2: I can analyze a pattern to determine features not apparent in the rule. That means always odd, always even, alternates between odd and even, etc.


Use place value understanding and properties of operations to perform multi-digit arithmetic.

MGSE4.NBT.5 (Multiply whole numbers-up to four-digit by one-digit and two-digit by two-digit, with strategies and models)

K1: I can multiply four-digit numbers by a one-digit number.

K2: I can multiply two-digit numbers by a two-digit number.

R1: I can use strategies based on place value and the properties of operations to multiply numbers.

R2: I can explain my answer using written equations.

R3: I can explain my answer using rectangular arrays.

R4: I can explain my answer using area models.

R5: I can explain my answer using illustrations.

MGSE4.NBT.6 (Whole number quotients and remainders with up to four-digit dividends and one-digit divisors)

K1: I can divide up to four-digit dividends by one-digit divisors.

R1: I can explain my answer using place value strategies.

R2: I can explain my answer using the properties of operations.

R3: I can explain my answer using the relationship between multiplication and division.

R4: I can explain my answer using written equations.

R5: I can explain my answer using rectangular arrays.

R6: I can explain my answer using area models.

R7: I can explain my answer using illustrations.


Solve problems involving measurement and conversion of measurements from a larger unit to a smaller unit.

MGSE4.MD.3 (Area w/rectangles)

K1: I can tell the formula for perimeter of a rectangle.

K2: I can tell the formula for area of a rectangle.

R1: I can use the formula for perimeter of a rectangle to solve real world and math problems.

R2: I can use the formula for area of a rectangle to solve real world and math problems.

R3: I can solve area and perimeter problems where there is an unknown. That means a missing value.

Geometric Measurement: understand concepts of angle and measure angles.

MGSE4.MD.8 (Rectilinear figures)

K1: I can find areas of rectangles.

K2: I can add areas of rectangles.

K3: I can identify the areas of each rectangle in a rectilinear figure (straight line) figure can be added together to find the area of a figure.

R1: I can decompose rectilinear figures to find the area of each rectangle to solve real world problems. That means I can break apart figures.

R2: I can break apart rectilinear figures into separate non-overlapping rectangles.