Some of our K-2 teachers had an amazing opportunity to work with Graham Fletcher today. One of the topics had to do with efficiency. What does an efficient math student look like? According to Graham, “mathematically efficient students can accomplish tasks with fewer steps but are not necessarily faster.” This reminds me of a term that… Continue reading Math Fluency: Speed vs Efficiency
I have been conflicted lately about a word that seems to have no defintion (in the mathematical world, at least) but, like the oval, is a widely acceptable shape. It’s the diamond. I have grown up my entire life with the understanding that a diamond is just a square with compressed, opposite vertices. I think I… Continue reading Stop Lying to Children: A Story of Diamonds
Kindergarten: From Counting to Cardinality to Abstraction Recently, we have been having some discussions about Kindergarten expectations and assessment when it comes to the K.CC standards. We built a Kindergarten task that measured K.CC4.a-c and K.CC5 a few years ago. Unfortunately, the formal assessment was too time-consuming and it was modified. The baby, however, was… Continue reading Kindergarten: From Counting to Cardinality to Abstraction
If Elmo Ran the World… I was watching a commercial on TV last night and a puppet asked someone to give him a “high five.” He looked at his raised hand and seemed mildly shocked upon realizing he had only four fingers. That caused me to wonder. If Elmo were in charge of the world,… Continue reading Elmo, Four Fingers, and the Octal
So, someone sent me a link to this great video that graphs and charts data from some popular musical numbers. It’s nice to see that math and data folks actually have a sense of humor! I wish I could give credit to exactly who produced the video but at the end it simply states from “The Office of Accountability.” Wow…Not just something hilarious from data folks but from an “Office of Accountability”…That’s amazing! Enjoy!