16 Misconceptions
I wrote these 16 images of common misconceptions before the September 17, 2015 #elemmathchat about “Mathematical Misconceptions.” If you would like to use them in class, either play the silent video below and pause at key moments, or download the PowerPoint file here. Feel free to leave comments, subscribe, or simply explore the rest…
Read More
NYABS Part 3: Number Trading
It’s possible you’ll feel that Number Trading is more like Leveling Off or that it is more like Passing Out. Take a look at the Number Trading strategy. You’ll understand a new way to find the mean, and then you’ll begin to wonder how these strategies are (and are not) related to one another. This…
Read More
NYABS Part 2: Passing Out
While you’ll initially see the Passing Out strategy, ultimately you will find yourself looking at two strategy icons which will help you to compare and contrast two strategies that are very similar. Or are they very different? Not Your Average Blog Post Series NYABS Part 1: Leveling Off NYABS Part 2: Passing Out NYABS…
Read More
NYABS Part 1: Leveling Off
When you begin watching the video you may agree that this is not your average blog series. Or maybe, it is. In this clip, pay particular attention to the challenge. Find out if you are able to nearly instantly level off. NYABS Part 1: Leveling Off NYABS Part 2: Passing Out NYABS Part 3: Number…
Read More
5 × 9 Is More Than 45
Even though some students and teachers will chase multiplication facts, such as 5 x 9 = 45, in pursuit of memorizing the products, there is so much more waiting to be learned… Thank you for visiting my blog! You may also be interested in Experiencing Subitizing, which launched the Subitizing Series. The Animated…
Read More
The Lattice Discussion
I put this together very, very quickly in response to a discussion that included questions about lattice multiplication. You’ll see me dabbling with three models in order to find the connections among all of them. You may also be interested in Experiencing Subitizing, The Animated Multiplication Table, or Exploring Multiplication.
Read More
These Dots Will Grow On You
Nearing the end of the Subitizing Series, I wanted to take time to detail a single math question, while placing an emphasis on noticing. The result is the video below: These Dots Will Grow on You. I encourage you to download the resources and to use them in class while providing your students with plenty…
Read More
Beyond Subitizing
In this 4th post in the Subitizing Series I’ll use 4 simple dots to illustrate what happens when we provide students with space to notice. There is also an image at the end that is one of my favorite patterns to use with students. I hope you will use it in your classroom! Enjoy! THE…
Read More
How to Make Quick Subitizing Images + 3 Free Resources
You are moments away from creating your own quick images. Watch the video, download the three free resources, and use your new images to promote rich mathematical discourse in your classroom. 1. Experiencing Subitizing 2. The Boundary of Subitizing, “The Rewind Version” 3. How to Make Quick Subitizing Images + 3 Free Resources 4. Beyond…
Read More
The Boundary of Subitizing (The Rewind Version)
Before I proceed with this series on subitizing, I must raise these questions: Is there a subitizing boundary? Is there a number of objects which are simply too many to subitize? If so, what might that number be? 1. Experiencing Subitizing 2. The Boundary of Subitizing, “The Rewind Version” 3. How to Make Quick…
Read More
Experiencing Subitizing
Experiencing Subitizing is the first in a six-part series on subitizing. The links to the other posts will become active this week. 1. Experiencing Subitizing 2. The Boundary of Subitizing, “The Rewind Version” 3. How to Make Quick Subitizing Images + 3 Free Resources 4. Beyond Subitizing 5. These Dots Will Grow on You…
Read More
Is This Claim Always True?
I have a claim. It may be true. It may not be true. My question: Is my claim always true? Watch the video and think about it carefully. Along the way, remember the power of the pause button, one of the most powerful buttons in education because it provides us with space to…
Read More