Like other enthusiasts of mathematics, I’m captivated by the way that mathematical ideas can explain things in the physical world around me, and by the way that I can carry out mathematical thought experiments in my mind and then apply the results to control my external physical environment.

# ICME: A Sensory-Motor Experience of Korea

I had the immense good fortune this year to attend ICME, the International Congress on Mathematical Education. The Congress is held every year divisible by 4, and this iteration (the twelfth) was held in Seoul, Korea. It is quite something to be at a meeting of nearly 4000 … Continue Reading ››

# The Standards Are Not The Curriculum

*We were so impressed by Jamila Riser's talk at NCSM a couple of years ago that we asked her to present an Ignite! for us this year. Now, we've asked her to guest blog so we can share even more about the amazing work she's doing in Delaware. Jamila is the Director of the Delaware … Continue Reading ››*

*Exploring the Law of Large Numbers with TinkerPlots*

*As part of our guest blog series, we bring you a post from Kathryn Shafer. A former middle school and high school math teacher, Kathy is now an Assistant Professor in the Department of Mathematical Sciences at Ball State University, Indiana. She's done a variety of work for Key, including presenting webinars, moderating online courses, and … Continue Reading ››**Functions Come Alive in a Precalculus Classroom*

*Functions Come Alive in a Precalculus Classroom*

*Ken Gordon has written our first in a series of guest blog posts from people working with Key Curriculum products in schools. Ken teaches Precalculus and Calculus in an accelerated program at Sisler High School in Winnipeg, Manitoba, Canada. He has been using The Geometer’s Sketchpad since first seeing it at an NCTM conference in 2004. … Continue Reading ››**What’s the Appropriate Role for the Teacher when using Computer Games?*

*What’s the Appropriate Role for the Teacher when using Computer Games?*

*I had the privilege this year of participating in the CADRE Fellows Program of NSF's Community for Advancing Discovery Research in Education, and met a number of colleagues in the program whose projects, like our Data Games project, are exploring the classroom benefits of computer-game- or simulation-based-learning. (In this post, I’ll refer to technology-oriented … Continue Reading ››**Data Visualization in the Age of HTML5*

*Data Visualization in the Age of HTML5*

*My partner and I spend a fair amount of time talking about data visualization. He's a computer programmer who works on websites that gather and display large amounts of data related to energy production and consumption. This data can be used to answer questions like: "How effective is the California Solar Initiative?" and "Where in … Continue Reading ››**Sketchpad Reflection Puzzles*

*Sketchpad Reflection Puzzles*

*In a recent blog post, Karen Greenhaus describes how it's possible to construct familiar corporate logos using Sketchpad. You might start with a rhombus, for example, and then reflect it twice to … Continue Reading ››**Sketchpad Activities, Cognitive Demand, and Differentiation*

*Sketchpad Activities, Cognitive Demand, and Differentiation*

*Not long ago, I conducted a Saturday morning PD session for some Texas teachers participating in an NSF research project. (The research is a controlled study of the relationship between students’ use of Sketchpad and their conjecturing and proving behavior. I hope we’ll have a blog post about this study itself before too long.) Because of the … Continue Reading ››**The Mathematics of Logos*

*The Mathematics of Logos*

*As you may know, we created a new logo for Key using a circle and rotational animation to create a visual representation of pi. Karen Coe describes this in her post**Branding Isn't About Math. Are You Sure About That?*(You can also … Continue Reading ››