Shawna is a teacher in a preschool where the classroom has a prepared environment and many sensory-based materials. There is an emphasis on respect for the children. Shawna's preschool is based on the work ofA. John DeweyB. Johann PestalozziC. John LockeD. Maria Montessori

In which research method does a researcher change the value of one variable to determine how the change affects another variable? a. experiment b. observational research c. survey d. case study

According to the federal regulations, which of the following studies meets the definition of research with human subjects? a study of twenty 4th grade classrooms in which researchers ask the schools to systematically vary the time of day reading is taught, and collect weekly assessments of reading comprehension for each child over a three-month period. the collection of data, by a playground designer hired by the superintendent of schools, about the physical dimensions of school playgrounds, presence of fencing, and the kinds of equipment currently provided. a feasibility study for implementing a year-round school program, focusing on economic issues such a facilities utilization and transportation costs. an analysis of aggregate data comparing statewide high school graduation rates provided by the state department of public instruction, using county tax information.

Roman builders used rows of arches in there buildings to form a curved ceiling called what