00892cam a2200253 a 4500 20230110144615.0 070412s2000 nyum b a000 0 eng 98-032128 40359254 DLC DLC lcac QA248 .M78 2000 Murphy, Stuart J., 1942- Dave's down-to-earth rock shop / by Stuart Murphy ; illustrated by Cat Bowman Smith. New York, NY : HarperCollins, c2000. 33 p. : col. ill. ; 22 x 26 cm. MathStart. "Classifying; Level 3." As they consider sorting their rock collection by color, size, type, and hardness, Josh and Amy learn that the same objects can be organized in many different ways. Set theory Juvenile literature. Smith, Cat Bowman, ill. lcc 43837 43837 0 0 lcc 0 0 AJMM AJM AJM 2023-01-10 0 0227520 2023-01-10 00:00:00 1 2023-01-10 BK VIRTUAITEM 0 0 lcc 0 0 AJMM AJM AJM 2023-01-10 0 0227521 2023-01-10 00:00:00 1 2023-01-10 BK VIRTUAITEM 0 0 lcc 0 0 MYC MYC 2023-01-10 0 0227522 2023-01-10 00:00:00 1 2023-01-10 BK VIRTUAITEM