This introductory astronomy LM contains observing and lab- oratory activities that are an essential part of an intro- ductory two-semester descriptive astronomy course. The primary aim of the LM is to give the student an appreciation of the night sky. Observing activities include a compre- hensive guide to the constellations,how to find the ecliptic and the determination of North,latitude,and length of the year. Indoor activities include building a telescope,determining the composition of stars using spec- troscopes,building a scale model of the solar system,determining the age of the Universe,and the search for planets around other stars.