In the United States, second grade (called grade 2 in metric system countries) is a year of primary education. Second grade is the second school year after kindergarten. Students are traditionally 7 8 years old, depending on when their birthday occurs. In mathematics, students are taught place value to hundreds or thousands, and renaming with addition and subtraction. Measurement is extended to the meter, foot, yard, kilogram, pound, and pint. Measurement of time and temperature in Fahrenheit and Celsius is also emphasized as well. Usually multiplication and division is introduced towards the end of the school year but not emphasized. Positive and negative numbers are introduced, but not added and subtracted. These values are generally introduced in temperature. Addition and subtraction facts are practiced throughout the year. Students also learn about plane and solid shapes in geometry and explore how they are apparent in our everyday lives. Some second grade topics in math can be explored at the following website.