This week, I’ve been working on ten more and ten less with my firsties. The purpose of ten more/ten less and one more/one less activities is really to develop an understanding of place value. When we find the number that is ten more or ten less, only the tens...
One criticism I hear again and again is that there are too many standards to “cover”. I agree that if you just look at the volume of standards for each grade level, they do seem quite overwhelming. But the thing about math is that so many skills are...
Subitizing, a 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...
“Why is it that as a society we’re willing to freely admit that we’re not competent mathematicians but would disguise any struggle we had with being literate? What if we decided that numeracy and literacy are both languages we should be fluent...
I’ve been working with my Firsties on the following TEK: 1.2(A) recognize instantly the quantity of structured arrangements Although it is not mentioned in the TEK, the mathematical word for this skill is subitizing. The dot patterns on dice and dominoes are...
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...
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