In a first-grade class, the students have been working with manipulative materials and pictures as they investigate the concept of addition. through both formative and summative assessments, the teacher has determined that the students are ready to move to more abstract (pencil and paper) ways to represent addition. how should she begin this process?

Pj conducts an experimental study on the effects of soft music during high stakes science testing. he randomly assigns students at the school. in one condition he does not provide music for testing while in the other group he does provide the music. he administers a pretest at the beginning of the year and a posttest at the end of the year. pj’s design is best described as a: a.static group comparisonb. pretest-posttest control group designc.control-group-time-series designd. nonrandomized control-group pretest-posttest design

Identify metropolitan statistical area

Anthropologist ralph linton said, "the last thing a fish would ever notice would be water." what does this imply about culture