Subitizing

Can you look at a carton of eggs and tell how many are left just by looking? Can you determine the number of dots of a page without counting each one? How about the number of students in a classroom without counting them one by one? If you can say yes to these questions, then you are a subitizer! Click on the image for an app for the iPad ($0.99).  I see this working well with 1st -3rd graders!  You could have it set up as a reinforcement center or try it on the Promethean Board as a whole group response.




Here is a flash video that could be used as a whole class opener/closer.  




Here is a free activity for you print and laminate for use in a center.




free activity by Donna Boucher


This friends of ten activity would work really well in a first grade room as a center.   It has a recording sheet for accountability.