Colorful eye-catching lessons will make math your child’s favorite subject with Horizons 4th Grade Made Student Book 1 from Alpha Omega Publications. This brightly illustrated consumable elementary math curriculum is fast-paced and well-structured. Includes concepts such as recognizing and writing numbers in the billions; knowing prime and composite numbers; adding and subtracting up to 6-digit numbers with borrowing; reviewing time, time equivalents, and time zones; reviewing the metric system; defining ratios, and more!