Survey questions and secret rules
Subtitle: introduction
By: Tracey Wright ; Jan Mokros
Contributors: Russell, Susan Jo; TERC (Firm)
Series: Investigations in number, data, and space
Publisher: Dale Seymour Publications
Published: 1998
Place of publication: Menlo Park, CA
Language: eng
Number of pages: 136
ISBN-13: 9781572324688
Subjects: Mathematics; Study and teaching (Primary)
Notes: "Developed at TERC, Cambridge, Massachusetts."

"Grade 1, also appropriate for grade 2."