Arias, Lisa

Rhyming text presents an overview of time, including how it is measured, how timelines work, the concept of elapsed time, and how to find start and end times. Includes practice problems, a glossary, and a list of additional resources.

Provides an introduction to multiplication, describing prime numbers, common factors, prime factorization, multiples, and least common denominators. Includes a glossary of terms, related websites, and activities.

Presents information on measurement, including topics such as measurement systems and units for measuring different types of things (such as weight and capacity). Includes practice problems, a glossary, and a list of additional resources.

Introduces young readers to the principles of geometry.

Provides an introduction to fractions, describing how to multiply whole numbers and fractions, how to simplify, and how to divide fractions. Includes a glossary of terms, related websites, and activities.

Presents information on equations, covering topics such as inverse operations, checking solutions, solving addition and subtraction equations, solving multiplication and division equations, and bar diagrams. Includes practice problems, a glossary, and a list of additional resources.

Provides an introduction to finding the least common denominator, and adding and subtracting fractions. Includes practice problems and a glossary.

Presents information on statistics, covering topics such as statistical questions and displays and the shape of data distributions. Includes practice problems, a glossary, and a list of additional resources.

Introduces young readers to the idea of positive and negative numbers, offering a variety of lessons on how to order numbers, what rational values are, and a wide range of practice exercises.

Presents information on decimals, including how to add, subtract, multiply, and divide decimals. Includes practice problems, a glossary, and a list of additional resources.