Many children begin school without important experiences in mathematics and using mathematical language needed for success in elementary school. Children who fall behind in elementary school mathematics are likely to spend the remainder of their school career just trying to catch up. The TAMS Project aims to explore methods of engaging young children in mathematics and use of mathematical language and determine if such strategies lead to greater preparedness for elementary school mathematics. If a positive relationship is identified between student talk about mathematics and math achievement in preschool, then researchers will collaborate with practitioners to implement strategies in the classroom that successfully engage children in using "math-talk."