Math - Subitizing

 This week we have been working on number sense activities.  

We have been working on subitizing.  Subitizing means the ability to look at a group of objects and recognize how many without counting.

We have watched Subitizing videos such as these:

Today, we played a game similar to the card game War.  Each child was given a colored deck of cards with tens frames of numbers 0 through 20.  Each child would flip a card.  The child whose card had the greater amount would win the cards.  Once they have flipped all the cards, they count the cards and the child with the most cards wins.  This games included many skills: subitizing once the cards were flipped, counting to see who won, and sorting the cards by color when they finished.  I was asked for this to be added to the math center.