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http://learningcenter.nsta.org/product_detail.aspx?id=10.2505/4/ss06_030_01_38 0.7 always http://learningcenter.nsta.org/search.aspx?author=Brent%20Ford 0.6 always http://learningcenter.nsta.org/search.aspx?author=Melanie%20Taylor 0.6 always http://learningcenter.nsta.org/product_detail.aspx?id=10.2505/4/ss06_030_01_44 0.7 always http://learningcenter.nsta.org/search.aspx?author=Catherine%20Martin-Dunlop 0.6 always http://learningcenter.nsta.org/product_detail.aspx?id=10.2505/4/ss06_030_01_58 0.7 always http://learningcenter.nsta.org/search.aspx?author=James%20Biehle 0.6 always http://learningcenter.nsta.org/product_detail.aspx?id=10.2505/4/ss06_030_01_72 0.7 always http://learningcenter.nsta.org/product_detail.aspx?id=10.2505/4/ss06_030_01_76 0.7 always http://learningcenter.nsta.org/product_detail.aspx?id=10.2505/4/ss06_030_01_34 0.7 always http://learningcenter.nsta.org/search.aspx?author=Anne%20Prouty 0.6 always http://learningcenter.nsta.org/product_detail.aspx?id=10.2505/4/ss06_030_01_18 0.7 always http://learningcenter.nsta.org/product_detail.aspx?id=10.2505/4/ss06_030_01_16 0.7 always http://learningcenter.nsta.org/search.aspx?author=Robert%20A.%20Lucking 0.6 always http://learningcenter.nsta.org/search.aspx?author=Steven%20Purcell 0.6 always http://learningcenter.nsta.org/search.aspx?author=Edwin%20P.%20Christmann 0.6 always http://learningcenter.nsta.org/product_detail.aspx?id=10.2505/4/ss06_030_01_30 0.7 always http://learningcenter.nsta.org/search.aspx?author=Roxanne%20Greitz%20Miller 0.6 always http://learningcenter.nsta.org/product_detail.aspx?id=10.2505/4/ss06_030_01_48 0.7 always http://learningcenter.nsta.org/search.aspx?author=J.%20Trevor%20Macduff 0.6 always http://learningcenter.nsta.org/product_detail.aspx?id=10.2505/4/tst06_073_06_74 0.7 always http://learningcenter.nsta.org/search.aspx?author=Christopher%20J.%20Petrone 0.6 always http://learningcenter.nsta.org/search.aspx?author=Lisa%20Ayers%20Lawrence 0.6 always http://learningcenter.nsta.org/product_detail.aspx?id=10.2505/4/tst06_073_06_40 0.7 always http://learningcenter.nsta.org/search.aspx?author=Julie%20Lambert 0.6 always http://learningcenter.nsta.org/search.aspx?author=Suzanne%20Smith%20Sundburg 0.6 always http://learningcenter.nsta.org/product_detail.aspx?id=10.2505/4/tst06_073_06_54 0.7 always http://learningcenter.nsta.org/product_detail.aspx?id=10.2505/4/tst06_073_06_44 0.7 always http://learningcenter.nsta.org/search.aspx?author=Sara%20Schoedinger 0.6 always http://learningcenter.nsta.org/search.aspx?author=Francesca%20Cava 0.6 always http://learningcenter.nsta.org/search.aspx?author=Beth%20Jewell 0.6 always http://learningcenter.nsta.org/product_detail.aspx?id=10.2505/4/tst06_073_06_60 0.7 always http://learningcenter.nsta.org/search.aspx?author=Erin%20Baumgartner 0.6 always http://learningcenter.nsta.org/search.aspx?author=Chela%20J.%20Zabin 0.6 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http://learningcenter.nsta.org/product_detail.aspx?id=10.2505/4/ss08_031_05_1 0.7 always http://learningcenter.nsta.org/product_detail.aspx?id=10.2505/4/ss08_031_05_64 0.7 always http://learningcenter.nsta.org/search.aspx?author=Debbie%20K.%20Jackson 0.6 always http://learningcenter.nsta.org/search.aspx?author=Marius%20Boboc 0.6 always http://learningcenter.nsta.org/product_detail.aspx?id=10.2505/4/ss08_031_08_49 0.7 always http://learningcenter.nsta.org/search.aspx?author=Karen%20Johnson 0.6 always http://learningcenter.nsta.org/product_detail.aspx?id=10.2505/4/ss08_031_08_55 0.7 always http://learningcenter.nsta.org/search.aspx?author=Margaret%20McEwen 0.6 always http://learningcenter.nsta.org/search.aspx?author=Julia%20Czyz 0.6 always http://learningcenter.nsta.org/product_detail.aspx?id=10.2505/4/ss08_031_08_48 0.7 always http://learningcenter.nsta.org/search.aspx?author=Elvis%20H.%20Cherry 0.6 always http://learningcenter.nsta.org/search.aspx?author=Weijie%20Lu 0.6 always http://learningcenter.nsta.org/search.aspx?author=R.P.H.%20Chang 0.6 always http://learningcenter.nsta.org/product_detail.aspx?id=10.2505/4/ss08_031_08_52 0.7 always http://learningcenter.nsta.org/search.aspx?author=Judi%20Kusnick 0.6 always http://learningcenter.nsta.org/product_detail.aspx?id=10.2505/4/ss08_031_08_26 0.7 always http://learningcenter.nsta.org/search.aspx?author=Tracy%20Voreis 0.6 always http://learningcenter.nsta.org/search.aspx?author=Frank%20Crawley 0.6 always http://learningcenter.nsta.org/search.aspx?author=Karla%20Tucker 0.6 always http://learningcenter.nsta.org/search.aspx?author=Shannon%20Blanton 0.6 always http://learningcenter.nsta.org/search.aspx?author=Heidi%20Adams 0.6 always http://learningcenter.nsta.org/product_detail.aspx?id=10.2505/4/ss08_031_08_58 0.7 always http://learningcenter.nsta.org/search.aspx?author=Mervyn%20J.%20Whiting 0.6 always http://learningcenter.nsta.org/product_detail.aspx?id=10.2505/4/ss08_031_08_20 0.7 always http://learningcenter.nsta.org/search.aspx?author=Earl%20Legleiter 0.6 always http://learningcenter.nsta.org/search.aspx?author=Malonne%20Davies 0.6 always http://learningcenter.nsta.org/search.aspx?author=Matt%20Seimars 0.6 always http://learningcenter.nsta.org/search.aspx?author=Zedslav%20Hrepic 0.6 always http://learningcenter.nsta.org/search.aspx?author=Beth%20Walizer 0.6 always http://learningcenter.nsta.org/product_detail.aspx?id=10.2505/4/ss08_031_06_22 0.7 always http://learningcenter.nsta.org/search.aspx?author=Susan%20Brooks 0.6 always http://learningcenter.nsta.org/search.aspx?author=Sheveeta%20C.%20Bonner 0.6 always http://learningcenter.nsta.org/product_detail.aspx?id=10.2505/4/ss08_031_06_26 0.7 always http://learningcenter.nsta.org/search.aspx?author=Jessica%20Gordon 0.6 always http://learningcenter.nsta.org/product_detail.aspx?id=10.2505/4/ss08_031_06_53 0.7 always http://learningcenter.nsta.org/search.aspx?author=Christine%20Stracey 0.6 always http://learningcenter.nsta.org/product_detail.aspx?id=10.2505/4/ss08_031_06_50 0.7 always http://learningcenter.nsta.org/search.aspx?author=Bonnie%20Wylo 0.6 always http://learningcenter.nsta.org/search.aspx?author=Peggy%20Liggit 0.6 always http://learningcenter.nsta.org/search.aspx?author=Susan%20Santone 0.6 always http://learningcenter.nsta.org/product_detail.aspx?id=10.2505/4/ss08_031_06_45 0.7 always http://learningcenter.nsta.org/search.aspx?author=Kristine%20Richards 0.6 always http://learningcenter.nsta.org/product_detail.aspx?id=10.2505/4/ss08_031_06_42 0.7 always http://learningcenter.nsta.org/search.aspx?author=Molly%20Petzoldt 0.6 always http://learningcenter.nsta.org/product_detail.aspx?id=10.2505/4/ss08_031_06_10 0.7 always http://learningcenter.nsta.org/product_detail.aspx?id=10.2505/4/ss08_031_06_58 0.7 always http://learningcenter.nsta.org/product_detail.aspx?id=10.2505/4/ss08_031_06_33 0.7 always http://learningcenter.nsta.org/search.aspx?author=Florence%20McCann 0.6 always http://learningcenter.nsta.org/search.aspx?author=Jon%20Pedersen 0.6 always http://learningcenter.nsta.org/search.aspx?author=Carell%20Falsarella 0.6 always http://learningcenter.nsta.org/search.aspx?author=Patrick%20McCann 0.6 always http://learningcenter.nsta.org/product_detail.aspx?id=10.2505/4/ss08_031_06_12 0.7 always http://learningcenter.nsta.org/search.aspx?author=Arnica%20Breene 0.6 always http://learningcenter.nsta.org/search.aspx?author=Donna%20Gilewski 0.6 always http://learningcenter.nsta.org/product_detail.aspx?id=10.2505/4/ss08_031_07_36 0.7 always http://learningcenter.nsta.org/search.aspx?author=Gail%20Yohe%20Kreider 0.6 always http://learningcenter.nsta.org/product_detail.aspx?id=10.2505/4/ss08_031_07_42 0.7 always http://learningcenter.nsta.org/search.aspx?author=Michelle%20Williams 0.6 always http://learningcenter.nsta.org/search.aspx?author=Marcia%20C.%20Linn 0.6 always http://learningcenter.nsta.org/search.aspx?author=Gail%20P.%20Hollowell 0.6 always http://learningcenter.nsta.org/product_detail.aspx?id=10.2505/4/ss08_031_07_23 0.7 always http://learningcenter.nsta.org/search.aspx?author=Nancy%20Heilbronner 0.6 always http://learningcenter.nsta.org/product_detail.aspx?id=10.2505/4/ss08_031_07_66 0.7 always http://learningcenter.nsta.org/search.aspx?author=W.R.%20Klemm 0.6 always http://learningcenter.nsta.org/search.aspx?author=Larry%20Johnson 0.6 always http://learningcenter.nsta.org/search.aspx?author=Vince%20Hardy 0.6 always http://learningcenter.nsta.org/product_detail.aspx?id=10.2505/4/ss08_031_07_73 0.7 always http://learningcenter.nsta.org/search.aspx?author=Amos%20Simms-Smith 0.6 always http://learningcenter.nsta.org/product_detail.aspx?id=10.2505/4/ss08_031_07_76 0.7 always http://learningcenter.nsta.org/search.aspx?author=Marsha%20Sega 0.6 always http://learningcenter.nsta.org/product_detail.aspx?id=10.2505/4/ss08_031_07_62 0.7 always http://learningcenter.nsta.org/search.aspx?author=Randy%20Hall 0.6 always http://learningcenter.nsta.org/product_detail.aspx?id=10.2505/4/ss08_031_07_10 0.7 always http://learningcenter.nsta.org/product_detail.aspx?id=10.2505/4/ss08_031_05_58 0.7 always http://learningcenter.nsta.org/product_detail.aspx?id=10.2505/4/ss08_031_05_27 0.7 always http://learningcenter.nsta.org/search.aspx?author=Erin%20Peters 0.6 always http://learningcenter.nsta.org/product_detail.aspx?id=10.2505/4/ss08_031_05_34 0.7 always http://learningcenter.nsta.org/product_detail.aspx?id=10.2505/4/ss08_031_05_53 0.7 always http://learningcenter.nsta.org/search.aspx?author=Holly%20Lyver 0.6 always http://learningcenter.nsta.org/product_detail.aspx?id=10.2505/4/ss08_031_05_50 0.7 always http://learningcenter.nsta.org/search.aspx?author=Heidi%20Cleveland 0.6 always http://learningcenter.nsta.org/search.aspx?author=Stacy%20Fox 0.6 always http://learningcenter.nsta.org/product_detail.aspx?id=10.2505/4/ss08_031_05_46 0.7 always http://learningcenter.nsta.org/search.aspx?author=Mandi%20Brooks 0.6 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http://learningcenter.nsta.org/product_detail.aspx?id=10.2505/4/jcst06_036_01_22 0.7 always http://learningcenter.nsta.org/search.aspx?author=Joyce%20Gutstein 0.6 always http://learningcenter.nsta.org/search.aspx?author=Martin%20Smith 0.6 always http://learningcenter.nsta.org/search.aspx?author=David%20Manahan 0.6 always http://learningcenter.nsta.org/product_detail.aspx?id=10.2505/4/jcst06_036_01_14 0.7 always http://learningcenter.nsta.org/search.aspx?author=Brian%20R.%20Shmaefsky 0.6 always http://learningcenter.nsta.org/product_detail.aspx?id=10.2505/4/jcst06_036_01_27 0.7 always http://learningcenter.nsta.org/search.aspx?author=Mark%20Francek 0.6 always http://learningcenter.nsta.org/product_detail.aspx?id=10.2505/4/jcst06_036_01_52 0.7 always http://learningcenter.nsta.org/search.aspx?author=Robert%20H.%20Tai 0.6 always http://learningcenter.nsta.org/search.aspx?author=Philip%20M.%20Sadler 0.6 always http://learningcenter.nsta.org/search.aspx?author=Joel%20J.%20Mintzes 0.6 always http://learningcenter.nsta.org/product_detail.aspx?id=10.2505/4/jcst06_036_01_10 0.7 always http://learningcenter.nsta.org/search.aspx?author=Shawn%20Glynn 0.6 always http://learningcenter.nsta.org/search.aspx?author=Thomas%20Koballa 0.6 always http://learningcenter.nsta.org/search.aspx?author=Dava%20Coleman 0.6 always http://learningcenter.nsta.org/search.aspx?author=Peggy%20Brickman 0.6 always http://learningcenter.nsta.org/product_detail.aspx?id=10.2505/4/jcst06_036_01_32 0.7 always http://learningcenter.nsta.org/search.aspx?author=Margaret%20Coffman 0.6 always http://learningcenter.nsta.org/search.aspx?author=Leela%20Riggs 0.6 always http://learningcenter.nsta.org/product_detail.aspx?id=10.2505/4/jcst06_036_01_45 0.7 always http://learningcenter.nsta.org/search.aspx?author=Timothy%20Moran 0.6 always http://learningcenter.nsta.org/search.aspx?author=Stephen%20J.%20Van%20Hook 0.6 always http://learningcenter.nsta.org/product_detail.aspx?id=10.2505/4/jcst08_037_03_6 0.7 always http://learningcenter.nsta.org/product_detail.aspx?id=10.2505/4/jcst08_037_03_18 0.7 always http://learningcenter.nsta.org/search.aspx?author=Joe%20Elkins 0.6 always http://learningcenter.nsta.org/search.aspx?author=Nichole%20M.L.%20Elkins 0.6 always http://learningcenter.nsta.org/search.aspx?author=Sarah%20N.J.%20Hemmings 0.6 always http://learningcenter.nsta.org/product_detail.aspx?id=10.2505/4/jcst08_037_04_30 0.7 always http://learningcenter.nsta.org/search.aspx?author=Jay%20L.%20Banner 0.6 always http://learningcenter.nsta.org/search.aspx?author=Nelson%20Guda 0.6 always http://learningcenter.nsta.org/search.aspx?author=Eric%20W.%20James 0.6 always http://learningcenter.nsta.org/search.aspx?author=Libby%20A.%20Stern 0.6 always http://learningcenter.nsta.org/search.aspx?author=Brian%20Zavala 0.6 always http://learningcenter.nsta.org/search.aspx?author=Jessica%20D.%20Gordon 0.6 always http://learningcenter.nsta.org/product_detail.aspx?id=10.2505/4/jcst08_037_04_14 0.7 always http://learningcenter.nsta.org/search.aspx?author=David%20M.%20Majerich 0.6 always http://learningcenter.nsta.org/search.aspx?author=Joseph%20S.%20Schmuckler 0.6 always http://learningcenter.nsta.org/product_detail.aspx?id=10.2505/4/jcst08_037_04_60 0.7 always http://learningcenter.nsta.org/search.aspx?author=Adrienne%20Alaie 0.6 always http://learningcenter.nsta.org/product_detail.aspx?id=10.2505/4/jcst08_037_04_38 0.7 always http://learningcenter.nsta.org/search.aspx?author=Lorena%20Tribe 0.6 always http://learningcenter.nsta.org/search.aspx?author=Evan%20L.%20Cooper 0.6 always http://learningcenter.nsta.org/product_detail.aspx?id=10.2505/4/jcst08_037_04_12 0.7 always http://learningcenter.nsta.org/search.aspx?author=William%20David%20Burns 0.6 always http://learningcenter.nsta.org/product_detail.aspx?id=10.2505/4/jcst08_037_04_24 0.7 always http://learningcenter.nsta.org/search.aspx?author=Gary%20Wisehart 0.6 always http://learningcenter.nsta.org/search.aspx?author=Mark%20Mandell 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