Have you ever wondered how people counted to 100 before modern numbers were invented? A basic explanation of Roman numerals, examples of how they are used today, and step-by-step guides on how to use them are explored through diagrams, photos, and informative and engaging text in this newest addition to the How Do series.

Little Four introduces the concept of "four" by interacting with four of a variety of things.

Little seven introduces the concept of "seven" by interacting with seven of a variety of things, some of which are grouped and regrouped to demonstrate adding and subtracting.

Little ten plays with her ten robot dolls and manipulates other toys and items for the reader to see what numbers can be put together to make ten.

Little Six introduces the concept of "six" by interacting with six of a variety of things.

A simple and short book for reinforcing doubling and halving. Ask your child the simple questions on each page to encourage them to confidently know their doubles to 12. Help children to use their knowledge of doubles to reinforce their knowledge and understanding of halves. Lots of opportunities to make it fun by challenging your child and you can take it in turns to read and answer the questions.

By observing the natural wonders of fall -- such as falling leaves, animal migration, and hibernation -- kids can learn math concepts like counting, estimating, and simple addition and subtraction. Journey into the natural world in the fall and discover that numbers, patterns, shapes -- and much more! -- can be found by observing everyday plants and animals.

Some years ago, "new math" took the country's classrooms by storm. Based on the abstract, general style of mathematical exposition favored by research mathematicians, its goal was to teach students not just to manipulate numbers and formulas, but to grasp the underlying mathematical concepts. The result, at least at first, was a great deal of confusion among teachers, students, and parents. Since then, the negative aspects of "new math" have been...

At least 3 out of every 5 grade 12 students have little or no interest in arithmetical aspect of Mathematics. At least 7 out of 10 educated adults would tell you they managed to scale through passing Mathematics back in their high schools and tertiary education. It is no doubt that the principles of basic mathematics could look very obscure and ambiguous, so it is normal you're struggling with it, you're not alone. From my few years of teaching mathematics,...

Avner Ash is professor of mathematics at Boston College. Robert Gross is associate professor of mathematics at Boston College. They are the coauthors of Elliptic Tales: Curves, Counting, and Number Theory and Fearless Symmetry: Exposing the Hidden Patterns of Numbers (both Princeton). The power and properties of numbers, from basic addition and sums of squares to cutting-edge theory We use addition on a daily basis-yet how many of us stop to truly...