Each hands-on, self-checking lessons feature a specific math skill, skill practice, and an animal puzzle. Instructions and animal background information are provided in English and Spanish. 32 pages each.

Math Skills Include:
- Addition (no regrouping)
- Subtraction (no regrouping)
- Multiplication (factors 1-12)
- Decimals
- Fractions
- Advanced Multiplication
- Addition & Subtraction
- Division

Featured Puzzles:
- Endangered Animals
- Rain Forest Animals
- Desert Animals
- Dinosaurs
- Mountain Animals
- Polar Animals 
- Ocean Animals
- Grassland Animals