Yearly Archives: 2013

Fake World Versus Real World

Like many math teachers, I have been following Dan Meyer’s discussion on “fake world” math tasks versus “real world” math tasks with interest, especially since one of my early blog posts was on this subject and one of the presentations I do for teachers is on this very topic. My observation is that it is […]

[Global Math] Recording of my presentation on Teacher and Student questions

I just noticed that I can embed recordings of presentations from Big Marker, so I decided to embed my presentation for the Global Math department here. The presentation topic was “Teacher and Student Questions.” You can view the slides here.   http://www.bigmarker.com/recordings/1213d96cd2a0

My son, the math teacher

My son went to a full day session to meet up with some other children around his age who are being homeschooled. During this time he had a class on engineering with Lego, and a lot of free time with which to play and socialize with the other children. Interestingly enough, the kids decide to […]

Workshop on Social Media for Students

I recently facilitated a workshop on social media for a school. I created two short videos to act as discussion starters, and then I created a workshop structure around the video clips that the school could use to facilitate the discussion with their students. Outline of a workshop for students on social media: Introduce me […]

Learning about shape

  As I watched my son over the past few days learn about shape, I am struck by not only how much we need to learn to make sense of the world, but also by how even simple things cannot be taken granted as known by children. My youngest son, who is about 20 months […]

A conversation with my son on place value

This is an excerpt from a conversation I had with my son while we were walking from the subway to the theatre. My son: Daddy, let’s play a number game. Me: Okay. What’s seven billion, nine hundred and ninety-nine million, nine hundred and ninety-nine plus one? My son: That’s too big Daddy, I can’t add […]

Teaching proof

I’m currently working on creating a sample sequence of lessons for teachers to use for a geometry unit. At this stage, students will have been exposed to (but will not necessarily have learned all of) geometric transformations, constructions, and some review on geometric vocabulary. My objective is to create a sequence of lessons which include: […]

Why teach math?

Why do we teach math? (Image source) It could be because the mathematical procedures that are taught in schools will be useful to students later, but I am pretty sure this is false. Almost everyone forgets those procedures as they get older because most people in our society use virtually none of the procedures they […]

How do you define variable?

I recently read the Common Core standards for Math for grade 6, which is where the concept of variable appears to be introduced. The standard in question reads: Write, read, and evaluate expressions in which letters stand for numbers. I tweeted this out, and one person responded with this observation: @davidwees in d/dx[f(x)]=mx+b …d, f, […]

Getting started with programming JavaScript

JavaScript is one of the primary web programming languages. It is the language used in Google Apps Scripting, and in HTML5 interactive documents. Chances are pretty good that most of the interactive features that you see in websites were coded in JavaScript. Much of the power of JavaScript comes from its power to manipulate and […]