TY  - BOOK
AU  - Hanson,Anders
AU  - Mann,Elissa
TI  - Cool optical illusions: creative activities that make math & science fun for kids! 
T2  - Cool art with math & science
SN  - 9781617838224
AV  - QP495 .H26 2014
U1  - 152.1 HAN 
PY  - 2014///
CY  - Minneapolis, Minn.
PB  - ABDO Pub. Company
KW  - Optical illusions
KW  - Juvenile literature
KW  - Visual perception
N1  - Includes bibliographical references and index; Cool optical illusions: tricky images -- See it! believe it? types of optical illusions -- Colors: frequencies of light -- Project 1: magic color spinner -- Opposite colors: take it as a complement! -- Project 2: afterimage illusions -- 3-D or not 3-D? the objects that couldn't be -- Project 3: drawing impossible objects -- Project 4: distorting illusions -- Math terms -- Glossary; Ages 8-12
ER  -