This site, teachrkids.com, is a site designed for children and adults, for better understanding of math, expecting with this help the math difficulties at elementary school level.
The math subjects are divided within the grades, such as pre-k, first grade, second grade, third grade and advanced; all of these grades containing all the different subjects, such as number basics, number sequences, addition, subtraction, patterns, multiplication, division, calendar, time, rounding, money, fractions and decimal values. All of these subjects have within them different timings and topics; for example, within the Preschool and Kindergarten, you can find the number basics, such as counting, less than, greater and equal, place value, next and previous, then within addition and subtraction you can find facts to ten, fixed values to ten and word problems to ten, time which is learning to tell the time and basic patterns. If you look within the separated sections of math subjects, you will find that they are as well divided into the grades. 
