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PODCAST

The Build Math Minds Podcast

Christina Tondevold

The Build Math Minds podcast is for my fellow Recovering Traditionalists out there. If you don"t know whether or not you are a Recovering Traditionalist, here"s how I define us. We are math educators who used to teach math the traditional way. Flip lesson by lesson in the textbook, directly teaching step-by-step how to solve math problems. But now, we are working to change that to a style of teaching math that is fun and meets our students where they are at, not just teaching what comes next in the

education

All Episodes

19:54

Episode 211 - Building Number Sense Without Adding to...

The Build Math Minds Podcast ·

2025/11/02

You know that building number sense is crucial—but finding time for one more thing feels impossible. In this episode, discover how investing time in foundational number sense concepts actually saves you time in the long run. Learn two practical strategies for fitting this essential work into your already-packed day without adding anything extra: the 1% Better Approach and the Replace, Don't Add Strategy. You'll walk away with clear examples of which activities to stop doing and what to start doing

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26:59

Episode 210 - Why Good Activities Aren't Enough - The...

The Build Math Minds Podcast ·

2025/10/26

Are you doing all the "right" math activities—Number Talks, Number Strings, Quick Images—but still not seeing the progress you expected? In this episode, you'll discover why having great activities isn't enough, and what actually builds real number sense with your students. You'll learn the critical difference between facilitating activities to collect answers versus facilitating them to develop deep mathematical understanding. Through concrete examples, you'll see how the same activity can produce

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21:52

Episode 209 - The Power of Integration - Why Teaching...

The Build Math Minds Podcast ·

2025/10/19

Are you overwhelmed thinking about trying to add in number sense activities into your already jam-packed day? In this game-changing episode, learn how to transform your math instruction by integrating number sense concepts into ONE quick activity. The ‘unspoken rule’ of teaching math has been to keep each math skill in separate boxes that we teach in isolation. Teaching in this way is one of the causes of feeling overwhelmed when teaching math. In this episode, you’ll see how to integrate math

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17:41

Episode 208 - The Number Relationships That Transform...

The Build Math Minds Podcast ·

2025/10/12

In this second episode of the math fluency series, we explore the four essential number relationships that help students move beyond counting and develop true mathematical thinking. Learn about spatial relationships, one/two more or less, benchmarks of 5 and 10, and part-part-whole thinking—and discover how these relationships evolve from PreK through fifth grade. We'll look at why students get stuck using inefficient strategies and how building these foundational relationships transforms them into

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13:38

Episode 207 - The Math Foundations - What Elementary...

The Build Math Minds Podcast ·

2025/10/05

In this episode, I'm kicking off a series on building math fluency by diving into what I wish I had known when I first started teaching—the critical foundations students need BEFORE we ever ask them to add, subtract, multiply, or divide. Many students can DO the math, but they don't truly UNDERSTAND it. And the problem isn't that they need more practice—they're missing something much more fundamental. I'm sharing the four early numeracy concepts from the research of Douglas Clements and Julie

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08:40

Episode 206 - 1% Better - The 4-Minute Daily Math...

The Build Math Minds Podcast ·

2025/09/28

What if transforming your math teaching only required 4 minutes a day? In this episode, Christina breaks down the powerful concept of getting 1% better daily and shows how just 4 minutes of intentional change in your classroom adds up to 12 hours of enhanced math learning over the school year. Perfect for busy educators who want to make a real impact without overwhelming themselves. Get your free guide with 30+ quick math activities to get you started at BuildMathMinds.com/1%

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11:08

Episode 205 - Stop Coaching Everyone: Use the 80/20...

The Build Math Minds Podcast ·

2025/09/21

As an elementary math coach, do you feel like you're trying to be everywhere at once with never enough time to make the impact you want? In this episode, discover how to use the 80/20 principle to transform your coaching approach and actually increase your impact while saving time. Learn how to strategically apply the 80/20 rule in two key ways: Which Teachers to Prioritize: How to identify the 20% of teachers who will create the biggest ripple effect across your school (hint: it's not just about

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17:19

Episode 204 -Timed Math Activities…Good or Bad?

The Build Math Minds Podcast ·

2025/09/14

Are timed math activities helping or harming our elementary students? This controversial topic divides educators, but the research tells a clear story when we dig deeper. In this episode, we explore evidence-based strategies for using timed activities to build math fluency without creating anxiety or trauma. Drawing from the What Works Clearinghouse's analysis of 27 studies involving over 4,300 students, we discover that the problem isn't timed activities themselves—it's how they've been

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47:50

Episode 203 - Number Sense with Christina Tondevold...

The Build Math Minds Podcast ·

2025/05/25

In this cross-posted episode from Math Chat, host Mona Iehl interviews Christina Tondevold about developing number sense in elementary students. Christina shares her journey from a "procedural" math student to becoming a math coach and founder of Build Math Minds. The conversation explores the eight components of number sense: four early numeracy concepts (subitizing, verbal counting, object counting, and cardinality) and four number relationships (spatial relationships, one/two more or less,

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08:37

Episode 202 - Going Beyond the Task When Building...

The Build Math Minds Podcast ·

2025/05/18

In Episode 202: Going Beyond the Task When Building Thinking Classrooms, we reveal the exciting lineup of special guests for our summer book study on 'Mathematics Tasks for the Thinking Classroom Grades K-5' by Peter Liljedahl and Maegan Giroux. Starting July 14th, each week will feature a video with reading prompts followed by live Q&A sessions with experts including first-grade teacher Tammy McMorrow, co-author of the book Maegan Giroux, and Official BTC Consultant Kim Rimbey. Join now at

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07:50

Episode 201 - Our Summer Book Study - Exploring Tasks...

The Build Math Minds Podcast ·

2025/05/11

In Episode 201, I share two exciting summer learning opportunities for fellow Recovering Traditionalists as we prepare to pause the podcast until August. First, enroll in The Flexibility Formula online courses (K-2 or 3-5) to transform how you build math fluency with your students. BuildMathMinds.com/courses Second, join our free summer book study on "Mathematics Tasks for the Thinking Classroom Grades K-5" by Peter Liljedahl and Maegan Giroux, starting July 14th. Register now at

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16:47

Episode 200 - The Three Essential Math Experiences:...

The Build Math Minds Podcast ·

2025/05/04

In this milestone 200th episode of The Build Math Minds Podcast, I share the three essential math experiences every classroom needs: Number Routines, Word Problems, and Games. Drawing from research-backed practices in the IES/WWC guides, I explain why these activities are crucial for developing conceptual understanding, procedural fluency, and application in mathematics. Learn how Number Routines make implicit math concepts explicit, how Word Problems should help students understand mathematical

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05:58

Episode 199 - The Many Ways to Show Numbers with Fingers

The Build Math Minds Podcast ·

2025/04/27

In this episode, I explore the fascinating world of finger use in math and specifically how we represent numbers differently. After noticing that Dan Finkel and I show the number 3 with completely different finger configurations, I dive into why these variations matter for children's mathematical understanding. Through personal stories about my own children's attempts to show the number 5, I highlight how fixed representations can limit children's number sense. Join me to discover why showing

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21:09

Episode 198 - Tips for Using Games to Build Math...

The Build Math Minds Podcast ·

2025/04/20

In this episode, Christina Tondevold welcomes special guest Dan Finkel, founder of Math for Love and creator of popular games like Prime Climb and Tiny Polka Dot. Dan shares his three essential principles for effectively implementing mathematical games in the classroom: games should involve meaningful choices, math should be the engine driving the gameplay, and games should be simple to learn and quick to play. Through personal stories and classroom examples, Dan and Christina explore how games

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13:20

Episode 197 - Upleveling Missing Part Games

The Build Math Minds Podcast ·

2025/04/13

In this final episode of our three-part series on upleveling missing part activities, I share ways to transform two popular math games: Salute and Number Sandwiches. Learn how to modify these traditional games to help your students build a deeper understanding of number relationships through missing part problems. These upleveled versions create opportunities for students to work with equivalent expressions while maintaining the fun and engagement of game-based learning. Perfect for elementary math

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06:54

Episode 196 - Repackaging Style Word Problems:...

The Build Math Minds Podcast ·

2025/04/06

In this second installment of our three-part series on Missing Part Activities, we explore 'repackaging tasks' - a powerful approach to traditional missing part word problems. While educators are familiar with finding unknown parts in word problems like “Christina has $12, she spends some now she has $7. How much did she spend?”, repackaging tasks push mathematical thinking further by having students redistribute quantities across equivalent expressions. Through practical examples in both

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11:33

Episode 195 - Upleveling Missing Part Activities to...

The Build Math Minds Podcast ·

2025/03/30

In this episode, we explore how to elevate your 'Missing Part' math activities beyond the basic type like 5 + __ = 12' into more problems that help students develop a deeper understanding of mathematical equality and build foundational number properties. Get a quick way to implement these enhanced activities in your classroom. Perfect for elementary educators looking to strengthen their students' mathematical thinking without explicitly teaching formal properties. This is the first in a three-part

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05:15

Episode 194 - The Truth About Mental Math - It's Not...

The Build Math Minds Podcast ·

2025/03/23

In this episode, we explore the common misconception about mental math in mathematics education. Featuring insights from Pam Harris' newly published book 'Developing Mathematical Reasoning: Avoiding the Trap of Algorithms,' we discuss why mental math isn't about doing calculations without paper—it's about developing quality thinking strategies.

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05:42

Episode 193 - Beyond the Template - Making the Lesh...

The Build Math Minds Podcast ·

2025/03/16

In this episode, I follow up on last week's introduction to the Lesh Translation Model with an important caution. While I previously shared a template for The Translation Task, today I explore concerns raised by John Mason in the 1987 book "Problems of Representation in the Teaching and Learning of Mathematics." Mason warns that frameworks like the Lesh Model can become "mechanical schemes for generating yet more useless student activity" when implemented without proper attention. I offer two

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08:53

Episode 192 - A Math Task All Teachers Should be Doing

The Build Math Minds Podcast ·

2025/03/09

In Episode 192, "A Math Task All Teachers Should be Doing," I discuss the Lesh Translation Model, a powerful framework that was frequently featured at the 2025 Virtual Math Summit. This model, which dates back to 1979 but was highlighted in NCTM's 2014 book "Principles to Actions," identifies five different ways to represent mathematical concepts: Manipulatives (objects), Realistic (real-life contexts), Pictorial (drawings), Language (verbal descriptions), and Symbolic (numbers/equations). I explain

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