Making Connections Between Orthographic Drawings & 3D Shapes

Students interact with and play in a world of three dimensional objects that are depicted on a two-dimensional screen.  However, when these same students enter a geometry class, many have difficulty interpreting two-dimensional drawings as three dimensional shapes. In particular, drawing features such as hidden lines throw them for a loop. To address this, I...

What Worked & What I Would Change With The History of Math Activity

As promised, here's a recap of what worked and what I would change with the history of math card activity   The whole activity (including discussion) took about 30 minutes.  We could have spent more time discussing the events, but we had a shortened bell schedule that day. What Worked I was impressed by the conversations...

A Short History of Math Activity

It's close to start of another school year, and I find myself thinking about what I should focus upon during the first few weeks of school this year.  I always spend time discussing mindset and the "Power of YET" with my students.  I love to show the Week of Inspirational Math videos and run a...