2.5 A Definition for Number Sense

Andrew provides a working definition for number sense that is concise and memorable. He unpacks the 5 key characteristics from his definition of number sense as a way to guide the learning experiences we provide students and assess student development over time. Download the Estimation 180 Number Sense Guide at estimation180.com/episode9

Three brief updates and announcements as we close out 2019. Andrew celebrates a few things from 2019, he catches you up on a few things he's been working on, and he shares some thrilling news about what you can expect in 2020!

Kyle Pearce and Jon Orr of the Making Math Moments That Matter podcast, interview me about Estimation 180. We discuss practical tips for using Estimation 180 with students and more. Kyle and Jon are attentive and energetic hosts. Their podcast interviews provide teachers with opportunities to continue growing as professionals. Head over to makemathmoments.com where their goal is to spark student curiosity, fuel sense making in kids, and ignite your teaching moves. estimation180.com/episode7

You will learn how to make a simple hack to your curriculum so that students are empowered to think more critically and creatively about mathematics and estimation. Curriculum is usually the one asking all the questions in math class. Let's shift that a bit. I riff of the unit of measurement of time and make a small change so students are the ones asking questions.  My Math Minions are back to explore this hack with me too. Find more details and resources at the episode page: estimation180.com/episode6

You will learn one of my favorite questions to help me better gauge the number sense and mathematical reasoning of many math students. It can't be any old question. It was very purposefully crafter. My Math Minions are back and I ask them that same question.   Find more details and resources at the episode page: estimation180.com/episode5

"Talking with My Math Minions" is back and in their own episode this time. Annie (6) shares how she thinks about even and odd numbers, teaching Andrew something new about how to make sense of even numbers. Patrick (9) thoughtfully discusses his understanding of regular and irregular fractions, whereas Andrew realizes his own lack of understanding fractions. Find more details and resources at the episode page: estimation180.com/episode4

Andrew shares how range can be the heart of estimation so students can better develop their math reasoning. He used to be scared of building range with students. Learn how he overcame that fear by having students create braver lower and upper limits and by learning how to utilize a local and global range. Stay tuned at the end of the episode for a bonus tip and BIG ANNOUNCEMENT! Find more details and resources at the episode page: estimation180.com/episode3

Andrew shares how not using visuals in his math class prevented students access to math conversations. Visual math landscapes are an invitation for both students and teachers to enjoy learning math together. Hear the lesson he learned and two practical strategies that will get students to focus on critical elements in visual math landscapes to harness curiosity, build number sense, and develop math reasoning. Find more details and resources at the episode page: estimation180.com/episode2

In the first episode of the Estimation 180 podcast, Andrew Stadel shares one of the biggest mistakes he ever made as a math teacher. It happened when students asked, "How tall are you?" Hear Andrew's mistake, the lesson he learned, and strategies to help you avoid making the same mistake. You'll also hear how that same mistake helped inspire Andrew to create Estimation 180, a site to help students build number sense.   But wait, there's more... Learn two practical strategies that will get students to own their math reasoning when they ask you questions you want them to think harder about. Those strategies are mirroring and curiosity exchanges. Find more details and resources at the episode page: estimation180.com/episode1