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## Mistakes Tell Us What Students Are Ready to Learn

Learning from students' mistakes to enhance instruction
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## Math Instructional Routines: Creating Opportunities for Students With Disabilities to Grapple with Grade-Level Math

How Routines for Reasoning can support all students to engage with the mathematical practices
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## Designing and Integrating a Grade 3 Assessment on Fractions

A Q&A With Raven Redmond and Jennifer Ahearn
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## Developing the Math Language Routines

Foster Student Participation Through Building Math Language, Practices, and Content
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## Are We Teaching Fractions Correctly?

Exploring evidence-based fraction instruction that supports a strong foundation in future mathematics
Part 2

## Most Misunderstood Math Standards in Grade 2

Are these instructional mistakes happening in your classroom?
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## Desmos in the Math Classroom

How a free tool changed my classroom
Part 3

## Yarn Number Line: A Lever to Develop Fraction Understanding

A routine for developing conceptual understanding of fractions
Part 2

## Choral Counting: A Lever to Develop Fraction Understanding

A model process for using choral counting to build conceptual understanding
Part 4

## Most Misunderstood Math Standards in Grade 4

Are these instructional mistakes happening in your classroom?
Part 3

## Most Misunderstood Math Standards in Grade 3

Are these instructional mistakes happening in your classroom?
Part 4

## Re-Teaching Doesn’t Always Mean Repeating

Consider alternative ways to re-teach when students struggle with new content
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## Three APPS to Support Students with Special Needs

Helping All Kids Grapple with Grade-Level Content
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## Emerging Effects from CCSS

A high school math teacher shares examples of student progress following CCSS implementation
Part 1

## Designing Shifts-Aligned Interventions in the Math Classroom

Avoid common pitfalls when it comes to supporting students with unfinished math learning
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## Four Best Practices for the Math Classroom

A math teacher shares lessons learned and alternative strategies he's discovered during his teaching career
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## Unfinished Learning in Math: How Do You Address it?

The role of coherence in ensuring all students stay on grade level
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## A Case for High-Quality Instructional Materials

Because we don’t want to confuse the math teachers…and other reasons we need high-quality instructional materials
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## Demonstrating Conceptual Understanding of Mathematics Using Technology

Using free recording software to capture students’ solution methods and help teachers reflect on their instruction
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## STEM Integration in Algebra: A Bridge to Opportunity

Relating mathematical thought processes to those in 21st Century careers
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## Putting Focus into Practice: The Case of Word Problems in Grades K–2

Standards co-author Jason Zimba explains how word problems can build understanding of addition and subtraction.
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## The Rectangle Area Formula—How Does Your Curriculum Introduce It?

Standards co-author Jason Zimba unpacks the rectangle area formula and highlights problems with the way textbooks sometimes introduce the formula to students.
Part 10

## Mathematical Knowledge for Teaching

How building specific mathematical knowledge in teachers can strengthen classroom instruction
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## Creating a Coherent Math Curriculum

The Coherence Map can help you uncover gaps in understanding and find resources to supplement your instructional materials.
Part 3

## Working Together to Create Open Educational Resources

The K-12 OER Collaborative is working to create Common Core-aligned resources
Part 4

## Collaborative Learning and Updating Materials

Developing a process for teachers to adapt instructional materials in mathematics