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spec: They learn to identify tracks , determine direction of travel and discuss the reasons the animal visited the location . Aside from these two prohibitions , Sioux women today not only freely attend meetings , but sit next to their spouses and sometimes even sing Peyote songs . In packet switching the last packet must travel a certain number of hops from source to destination . Coloured pencils , crayons or ink may be used in distinguishing features and maps should include a scale , compass direction , title , legend explaining all mapped features , and 1.5 cm margins . The authors of the Langmuir paper are now developing methods to improve the biocompatibility of these magnetic nanoparticles . Every programming language uses strings for SQL statements . They were down 20 before you could blink . School / district instructional decisions focus on support for teaching and learning , organizational direction , high performance expectations , creating a learning culture , and developing leadership capacity in literacy .