Subitize
Subitize (Soo-b-i-t-i-z) You may hear that word when talking with your child's teacher about math, or even (fingers crossed) when your child is working with numbers; example playing a board game with dice or counting different items.
What does that math term mean?
It is the ability to tell the number of objects in a set by quickly looking at them, without counting.
Subitizing helps children acquire and develop the concept of conservation of number, and understanding of number relationships and is instrumental in later mathematical learning.
Conservation of number is the counting and quantity principle referring to the understanding that the count for a set number of objects stays the same no matter whether they are spread out or close together.
If a student counts a group of items that are close together and then needs to recount after you have reconfigured them, they may have not yet developed an understanding of the principle of conservation.
Below are two videos, one by Catia Dias and one by Jack Hartman to help illustrate this important skill...even in Kindergarten.
What does that math term mean?
It is the ability to tell the number of objects in a set by quickly looking at them, without counting.
Subitizing helps children acquire and develop the concept of conservation of number, and understanding of number relationships and is instrumental in later mathematical learning.
Conservation of number is the counting and quantity principle referring to the understanding that the count for a set number of objects stays the same no matter whether they are spread out or close together.
If a student counts a group of items that are close together and then needs to recount after you have reconfigured them, they may have not yet developed an understanding of the principle of conservation.
Below are two videos, one by Catia Dias and one by Jack Hartman to help illustrate this important skill...even in Kindergarten.
Let's Give It A Try
Looking at the pictures below, what numbers do you see?
Looking at the pictures below, what numbers do you see?