Developmentally appropriate practices are based upon knowledge of
a. child development and research.
b. early childhood education models.
c. your center's goals.
d. government regulations.

Mr. mann's science students were experimenting with speed. they set up a 1 meter (100 cm) track. the students used balls instead of cars. the balls were different sizes and made of different materials. four at a time, students rolled balls around the track to see which had the fastest and slowest speeds. some of their data are shown in the table. which ball will take the longest to complete one lap around the track?

12 there are four phases of self-regulation: forethought, performance, self-reflection, and punishment. select the best answer from the choices provided ot of

Recently, there has been pressure to loosen clean air standards. use economic arguments to support or oppose this proposed action.