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Subitizing: Moving from Perceptual to Conceptual

Subitizing–funny sounding word, but a very important skill for developing number sense. Basically, we subitize when we instantly recognize a small group of objects as a number. For example, if I hold up five fingers and you instantly know it’s five without...

Subitizing: Instantly Recognizing Quantities

I’m currently working with my Kinders and Firsties on subitizing. If you’re scratching your head about the word “subitizing”, you might not be alone. Consider this–how many fingers are displayed in the picture above. I’m pretty sure...

Comparing Fractions: Using a Benchmark of 1/2

“Understanding why a fraction is close to 0, 1/2, or 1 is a good beginning for fraction number sense. It begins to focus on the size of fractions in an important yet simple manner.” (Van de Walle/ Lovin, 2006) In this series of blog posts, I am exploring 5...

Fraction Basics: The Meaning of the Denominator

Here in Texas, our math standards, the Texas Essential Knowledge and Skills (TEKS), changed dramatically this year, and teachers are facing a steep learning curve. For many of our kiddos, it also means they have gaps in their learning because some standards...

Thanksgiving Craftivity

This craftivity was inspired by an activity one of my second grade teachers did with her class.  Once she showed me her display, my mind was filled with other applications of the same idea!!  It’s a simple blackline turkey and feathers, with filled and...

Three Engaging Math Apps

I recently stumbled across a great group of math apps for the iPad and iPhone from Motion Math. Many of their apps feature free versions with the option to pay for additional levels. The app that got me hooked was Hungry Fish. It’s incredibly engaging addictive...