00602nam a2200181 a 450000500170000002000150001708200170003210000270004924500560007626000570013230000280018969000490021769000280026696400160029499700190031099900190032995200720034820251203110855.0  a0805829318  a371.334bCOM  aLajoie, Susanne P ed.,  aComputers as cognitive tools: vol. 2bno more walls  aLondonbLawrence Erlbaum Associates Publishersc2000  axxxii, 430p.c24 cm. PB  aComputer-Assisted instruction -United states  aArtificial intelligence  bcdefg_  a126767 LIBSS C  c105768d105768  00104070aPUbPUd2007-12-19g2004.73l0o371.334 COMp126767yBK