Subitizing is an important mathematical skill in a student's development of number sense and arithmetic abilities.
Subitizing is visually recognizing the quantity of a set without "counting". Subitizing supports a student's understanding of the relationship between numbers.
Subitizing requires students to manipulate numbers, identify patterns within numbers, and recognize a set as a composite of parts and as a whole.
To support the first graders development of the skill of subitizing, the first grade Butterflies utilize the Quick Images iPad app (by Tom Patten).
The Quick Images app provides various structures for developing the skill of subitizing. Students can subitize sets within a "group", on "fingers", within a "ten frame", within two "ten frames", on a ten bead Rekenrek, and/or on a twenty bead Rekenrek.
The app includes the capability to control the length of time for image display. This capability allows for individualization and encourages fluency improvement. The images can be set to display for 1, 2, 3, or 4 seconds.
The Quick Images app is utilized by the first grade Butterfly Mathematicians independently and/or cooperatively with a math iPad learning partner.
When utilized with a math iPad learning partner, the partners subitize each "image" and verbally explain how the quantity was subitized. The partners alternate "touching" the quantity for each "image".
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