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- 3.OA.D.8Solve 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.
- 3.OA.D.9Identify arithmetic patterns (including patterns in the addition table or multiplication table), and explain them using properties of operations. For example, observe that 4 times a number is always even, and explain why 4 times a number can be decomposed into two equal addends.

Counting Clams - A Tidal Flat Adventure

3rd Grade Math

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Multiplication

Big Idea:Mathematics has an important role in the real world outside of school. Scientists use multiplication to estimate animal populations.

Math with Maples

3rd Grade Math

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Division in Context

Big Idea:Patterns in division and multiplication can be found in nature, and an understanding of these patterns enables scientists to conduct systematic research.

Solving Multi-Step Word Problems

3rd Grade Math

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Multiplication 2

Big Idea:As students develop fluency and automaticity with operations, they can practice applying these skills to more analytical word problems.

Word Problems With Order of Operations (Day 1 & 2)

3rd Grade Math

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Multiplication 2

Big Idea:Writing word problems reinforces understanding of the order of operations.

Multiple Step Story Problems

3rd Grade Math

Â» Unit:

Place Value

Big Idea:Multi-step word problems are always tricky at first. Learning to break them down into parts and model the known information are important to the process of becoming proficient solvers.

Humans vs Narwhals

3rd Grade Math

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Math and Me: Nutrition, Health and More

Big Idea:Who's the REAL meat eater here? Let's do some math and find out!

Fundraiser Finance (Pickles for a Profit)

3rd Grade Math

Â» Unit:

Solving Mult-Step Word Problems Using the Four Operations

Big Idea:Engaging students in analyzing the cost-benefit of selling different food items at a fundraiser provides real-world, two-step word problems!

Breaking Apart Problems

3rd Grade Math

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More Problem Solving Practice

Big Idea:Problem solving is not a race- it takes time to solve multi-step problems.

One Step at a Time

3rd Grade Math

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Problem Solving

Big Idea:Multi-step problems require additional skills in problem solving.

Sharing Maybe?

3rd Grade Math

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Understanding Division

Big Idea:Students will love celebrating the learning of division, while working on a multiple step problem about sharing cookies.

Three Fish Limit Multiplication Word Problem

3rd Grade Math

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Multiplication 2

Big Idea:This multi-step word problem requires students to use repeated addition or multiplication to solve a word problem.

Navigating Road Blocks in Problem Solving

3rd Grade Math

Â» Unit:

Multiply or Divide with Word Problems

Big Idea:Students can solve real world problems using their understanding of multiplication and division and recognizing their relationship.

Target Number Game

3rd Grade Math

Â» Unit:

Multiplication 2

Big Idea:Playing a game for the order of operations engages students in math fact review and builds fluency.

Fundraiser Math: Solving for Individual Item Cost

3rd Grade Math

Â» Unit:

Solving Mult-Step Word Problems Using the Four Operations

Big Idea:Real world application and real world items make complex tasks engaging!

Building Our Problem Solving Tools

3rd Grade Math

Â» Unit:

Multiply or Divide with Word Problems

Big Idea:Students can solve real world problems using their understanding of multiplication and division and the relationship they share.

3.OA.D.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.

3.OA.D.9

Identify arithmetic patterns (including patterns in the addition table or multiplication table), and explain them using properties of operations. For example, observe that 4 times a number is always even, and explain why 4 times a number can be decomposed into two equal addends.