TY  - BOOK
AU  - Hyland,Tony
AU  - Johnson,Sara
TI  - Patterns in Nature: Recognizing Patterns 
T2  - Algebra and Algebraic Thinking
U1  - 510 23
PY  - 2009///]
CY  - Huntington Beach : 
PB  - Teacher Created Materials, 
KW  - Mathematics
KW  - Problems, exercises, etc
KW  - Juvenile literature
KW  - Problem solving
KW  - Study and teaching (Elementary)
N1  - Includes index and answer key; Grades 4 to 6
ER  -