Snowballing Search

Database: WorldCat
S1: (books or literature or fiction or nonfiction) 6,976,126 hits
S2: (curriculum or instruction or literacy) 845,199 hits
S3: (elementary school or grammar school or school library or school library media center) 152,989 hits
S4: (books or literature or fiction or nonfiction) AND (curriculum or instruction or literacy) AND (elementary school or grammar school or school library or school library media center) 2307 hits

I found this article to start my snowball:

Linking science & literacy in the K-8 classroom
Rowena Douglas2006
English Internet Resource Computer File xv, 441 p. : ill. ; 26 cm.
Arlington, VA : NSTA Press, ; ISBN: 1933531959 (electronic bk.) 9781933531953 (electronic bk.)
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Title:
Linking science & literacy in the K-8 classroom
Author(s):
Douglas, Rowena.
Corp Author(s):
NetLibrary, Inc.
Publication:
Arlington, VA : NSTA Press,
Year:
2006
Description:
xv, 441 p. : ill. ; 26 cm.
Language:
English
Standard No:
ISBN: 1933531959 (electronic bk.); 9781933531953 (electronic bk.)
Contents:
Visions of inquiry: science / Hubert M. Dyasi -- Talk in the science classroom: looking at what students and teachers need to know and be able to do / Jeffrey Winokur and Karen Worth -- Young children's own illustrated information books: making sense in science through words and pictures / Maria Varelas, Christine C. Pappas, and the ISLE Team -- Using the science writing heuristic to promote understanding of science conceptual knowledge in middle school / Brian Hand -- Comprehension strategies and the scientist's notebook: keys to assessing student understanding / Ronald DeFronzo -- Writing to learn: science notebooks, a valuable tool to support nonfiction modes/genres of writing / Marleen Kotelman, Toni Saccani, and Joan Gilbert -- Supporting middle school students in developing scientific explanations / LeeAnn M. Sutherland ... [et al.] -- Reading and writing in the service of inquiry-based science / Gina N. Cervetti ... [et al.] -- Constructing science-literacy workshops: the journey from powerful ideas to classroom practice / Joan Armon and Linda Morris -- Developing scientific literacy through the use of literacy teaching strategies / Textual Tools Study Group, University of Michigan -- Using diversity as a strength in the science classroom: the benefits of science talk / Ann S. Rosebery and Josiane Hudicourt-Barnes -- English language development and the science-literacy connection / Mercedes Durón-Flores and Elena Maciel -- Professional development and strategic leadership to support effective integration of science and literacy / Iris Weiss -- Science education in a No Child Left Behind, standards-based world / Michael P. Klentschy -- Science IDEAS: making the case for integrating reading and writing in elementary science as a key element in school reform / Nancy R. Romance and Michael R. Vitale -- The administrator's role in supporting science and literacy in classrooms / Michael P. Klentschy and Patricia M. Maruca.
Access:
Materials specified: Bibliographic record display http://www.netLibrary.com/urlapi.asp?action=summary&v=1&bookid=157253 Note: An electronic book accessible through the World Wide Web; click for information
SUBJECT(S)
Descriptor:
Science -- Study and teaching (Elementary) -- United States. Science -- Study and teaching (Middle school) -- United States. Language arts (Elementary) -- United States. Language arts (Middle school) -- United States.
Genre/Form:
Electronic books.
Note(s):
Includes bibliographical references and index./ Reproduction: Electronic reproduction./ Boulder, Colo. :/ NetLibrary,/ 2006.
General Info:
Other format available: Original
Class Descriptors:
LC: LB1585.3; Dewey: 372.3/5
Other Titles:
Linking science and literacy in the K-8 classroom
Responsibility:
edited by Rowena Douglas ... [et al.].
Vendor Info:
YBP Library Services (YANK)
Material Type:
Document (dct); Internet resource (url)
Document Type:
Internet Resource; Computer File
Date of Entry:
20060803
Update:
20080516
Accession No:
OCLC: 70821601
Database:
WorldCat

I would add "elementary classroom*" to my third search facet seeing that this relevant article has "classroom" in the title, as well as many other useful articles. I would also like to add "teaching" somewhere into my seach facet but I'm not quite sure where. I would probably just add a new search string to include "teaching". This search is also similar to what my usual searches look like (I have an original idea, and then based on the things that are retrieved, I usually get more ideas of what I really wanted to search for and I revise my original search based on those new ideas).