In this Grade 4 Pengi Math lesson, students learn to break down multi-step word problems by identifying the correct sequence of operations, including multiplicative comparison and division with remainders. Students represent problems using equations with a letter for the unknown quantity and apply diagrams and estimation strategies to plan and justify their answers. This lesson is part of Chapter 3: Understanding Multiplication and Division.
Section 1
Deconstructing Word Problems to Sequence Operations
Deconstruct a multi-step word problem by first identifying the final question and then finding the "hidden question" that must be answered first. Use a model, like a tape diagram, to visualize the relationship between the parts and determine the correct sequence of operations to solve the problem.
Section 2
Model and Solve Two-Step Multiplicative Comparison Problems
To solve a two-step word problem involving multiplicative comparison, first draw and label a tape diagram to model the relationship between the quantities. Then, write an equation with a variable for the unknown value and solve it. The structure often involves finding a larger quantity through multiplication and then performing a second step of addition or subtraction: .
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Section 1
Deconstructing Word Problems to Sequence Operations
Deconstruct a multi-step word problem by first identifying the final question and then finding the "hidden question" that must be answered first. Use a model, like a tape diagram, to visualize the relationship between the parts and determine the correct sequence of operations to solve the problem.
Section 2
Model and Solve Two-Step Multiplicative Comparison Problems
To solve a two-step word problem involving multiplicative comparison, first draw and label a tape diagram to model the relationship between the quantities. Then, write an equation with a variable for the unknown value and solve it. The structure often involves finding a larger quantity through multiplication and then performing a second step of addition or subtraction: .
Book overview
Jump across lessons in the current chapter without opening the full course modal.
Continue this chapter