The sudden increase in knowledge concerning space has prompted the consideration of new ways in which we may include this information in an established curriculum at both the elementary and secondary levels. One way is through the use of a planetarium. Not only is the instrument (projector) used to illustrate descriptive astronomy, but also longitude and latitude, spherical concepts in mathematics, and physical laws of motion. Since planetarium use is restricted only by the availability of a trained lecturer, a school may offer this facility to outside groups such as the Boy Scouts or Power Squadron classes.
Whitman, C. (1963). Using a Planetarium. The Science Teacher, 30(8), 18.