Subitizing Cards - Knowing How Many Without Counting

Subitizing Cards - Knowing How Many Without Counting

# BM-057003

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Item #: BM-057003
ISBN: 9781935502944
Grades: K-1

Product Description:

Subitizing. "What is that?" you might be asking. Subitizing is knowing how many of something there is without counting or performing any mathematical process. For example, you throw the dice and automatically know how many dots there are by the pattern or grouping of the pips (dots). Some researchers believe that subitizing is a necessary precursor to counting, but this is also a debatable point. What is known about subitizing is that it does have to do with visualization and that some patterns make it easier to 'know how many' than other patterns.

These 8 ½" x 11" cards have large dots on them and provide a quick image for children to practice recognizing how many each group represents. There are really no instructions that come with the set, but there are games you can play using them. The set includes dot cards for 2 through 10, for a total of 38 cards. You can have children recreate or duplicate the pattern using manipulatives, play a matching game using cards with the same number of dots (not the same pattern), play concentration games. Hold the cards in different positions for a different perspective, use them with number cards and match the numeral to the quick image, or even say a number that is one less or more than the quick image of dots.

These are a good tool for use with any math program, or just for a quick exercise in visual and spatial awareness. Use them like flash cards or create your own game to strengthen subitizing skills. ~ Donna

Publisher Description:

Subitizing recognizing the number of objects in a group without having to count the objects is a fundamental building block for developing number sense. These simple 8 1/2" x 11" dot cards help students learn subitizing and how to understand the crucial concept of making 10. Teachers can use the cards with the whole group and then follow up with practice assignments in centers. (K-1) 38 cards.

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Grade Start
Grade End
Brand Name
Crystal Springs Books
1.15 (lbs.)
11.0" x 8.5" x 0.25"
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