OA.4.8

Solve two-step word problems using the four operations. 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.

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Formative Assessments
Formative Assessments
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Students solve a two-step word problem involving addition and division and then write an equation to represent the problem.
Bake Sale
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Students solve a two-step word problem involving subtraction and division and then choose an equation that represents the word problem.
Zoo Field Trip
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Students solve a two-step word problem involving multiplication and subtraction and then write an equation to represent the problem.
Books At the Book Fair
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Students solve a two-step problem requiring multiplication and addition and then write an equation to represent the problem.
Party Beverages
Virtual/Hands-on Manipulatives
Virtual/Hands-on Manipulatives
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CPALMS: This interactive Java applet develops logical reasoning skills and fluency with two-digit addition.
Circle 99
Assessment Questions
Assessment Questions
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Equation Editor 1
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Equation Editor 2
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Multiple Choice
Videos of Expert Instruction
Videos of Expert Instruction
Use Real Link and Title
Use Real Link and Title
Use Real Link and Title
Hook/Performance Tasks
Hook/Performance Tasks
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Students will solve a problem using the language ``half of the stamps`` which prepares them for later understanding that a fraction of a quantity is that fraction times the quantity.
IM:  The Stamp Collection
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The purpose of this task is for students to solve a two step word problem and represent the unknown quantity with a variable.
IM:  The Class Trip
Problem Based Lessons
Problem Based Lessons
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Robert Kaplinsky: Students determine the number of soda combinations there are on a Coca Cola Freestyle.
How Many Soda Combinations Are There On A Coke Freestyle?
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Graham Fletcher: Students watch a video and determine how many knots will fit on a rope.
Knotty Rope