Category Archives: Common Core

Iteration in the Complex Plane

The cover story of the April 2014 issue of Mathematics Teacher is on “Iteration in the Complex Plane”, by Robin S. O’Dell. It sounds like pretty advanced mathematics, but is surprisingly accessible with The Geometer’s Sketchpad. It’s all based on … Continue reading

Posted in Common Core, Math Software | Tagged , , , , , | Leave a comment

Discovery by Dragging

A few days ago I led a webinar on the Common Core and Sketchpad for Sketchpad beginners, and I showed four Sketchpad activities aligned with both the Content Standards and the Standards for Mathematical Practice. I mixed it up a … Continue reading

Posted in Common Core, Educational Technology, Math Software | Tagged , , , , , , , , | Leave a comment

What Does Rowing Have to Do with Teaching Mathematics?

Harry congratulates a rower after sweeping Yale for his last time. Harry Parker died this summer, two weeks after coaching the Harvard rowing team to yet another sweep of all four races (varsity, JV, freshmen, and spares) against Yale and … Continue reading

Posted in Common Core, Educational Technology, Math Software, Uncategorized | Tagged , , , , , , , , | Leave a comment

Starting with Sketchpad Activities on Day One in High School

In my previous two posts, I listed some of the new Dynamic Number project activities (for grades 2-5 and grades 5-8) that engage students in manipulating and investigating dynamic mathematical objects from day one. In this post I’ll list several … Continue reading

Posted in Common Core, Educational Technology, Math Software | Tagged , , , , , , , | Leave a comment

Starting with Sketchpad Activities on Day One in Grades 5-8

In the Dynamic Number project, one of our goals has been to create activities in which students actually experience mathematical objects by creating them, manipulating them, and investigating them. (George Lakoff and Rafael Núñez describe, in Where Mathematics Comes From, … Continue reading

Posted in Common Core, Educational Technology, Math Software | Tagged , , , , , , , | Leave a comment

Standards for (Mathematical) Practice

Today I present Dr. Donna S. Leak, Superintendent of Rich Township High School District in Illinois, and her talk at the Key Ignite event during NCSM in April. In her presentation, “The Will to Transform—The Action to Succeed,” Donna describes … Continue reading

Posted in Common Core | Tagged , , , , , | Leave a comment

Modeling: A Challenge or a Mind Shift?

I’ve been developing a workshop on modeling as it is envisioned in the Common Core State Standards. A couple of ideas that I have gotten from my research are presenting quite a challenge: • Modeling is not a recipe of … Continue reading

Posted in Common Core | Tagged , | Leave a comment

Difficult Questions. Keep ‘em coming.

I was recently reminded of how important it is to evaluate student interaction when determining the professional development needs of a school or teacher.  I’ve written about this in prior posts and included a reference to a useful tool for … Continue reading

Posted in Common Core | Tagged , , , | Leave a comment

Modeling: A Mathematical Practice and a Content Standard?

Have you ever thought about the fact that “modeling” in the Common Core is not only in the Standards for Mathematical Practice, but also is a content standard? I have to admit that I hadn’t really thought much about it … Continue reading

Posted in Common Core | Tagged , , | 2 Comments

Stay Out of the Crosswalk!

That advice may seem contradictory to what our parents told us, and what we tell our students and children.  But, in this case, context means everything.  States, districts, and schools that are now planning for the implementation of the Common … Continue reading

Posted in Common Core | Tagged , , , | 2 Comments