The New York State Education Department has established the following standards for mathematics in Grade 1:

1. Number and Operations in Base Ten: - Understand place value, including the meaning of tens and ones. - Use place value understanding and properties of operations to add and subtract within 100. - Understand that the two digits of a two-digit number represent amounts of tens and ones.

2. Operations and Algebraic Thinking: - Understand and apply properties of operations and the relationship between addition and subtraction. - Add and subtract within 20. - Work with addition and subtraction equations.

3. Measurement and Data: - Measure lengths indirectly and by iterating length units. - Tell and write time in hours and half-hours using analog and digital clocks. - Represent and interpret data.

4. Geometry: - Reason with shapes and their attributes. - Compose and decompose two-dimensional shapes.

These standards outline the knowledge and skills that students in Grade 1 should acquire in mathematics. They provide a framework for instruction and assessment in New York State.