At this point in the year, the students are supposed to be able recognize numbers up to thirty-one by looking at sets of ten and extra units. A few of the kids have struggled with this concept. This magnetic dry erase board (from Wal-mart) has been wonderful. I printed tables with ten cubes (on colored paper) and attached them to pieces of magnetic adhesive strip. I also made some individual unit squares. I can quickly ask "how many tens?" and write the number with a dry erase marker, "how many extras?" and write that number with a dry erase marker, and get them to read the two digits as the total number.
We have also begun estimating numbers as "about 10," "about 20," or "about 30." I wanted some plastic jars with a wide opening to use in introducing this with manipulatives. I now have lots of scented Epsom salt from Dollar Tree....
I used them in a lesson modeling "guess and check," then I added them to the math center.
Totally unrelated but...
Since today was the first day of Catholic Schools Week, we had a crazy sock day (in addition to free dress day). Here are my crazy alphabet socks.
Eilis
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