Instructional aids and ditto masters for unit three of a science/math curriculum in Spanish for first graders are included in this supplement and ditto packet. Encompassing kits 9-12, these materials are designed for use with learning activities referred to in the teacher's guide corresponding to this unit. Illustrations and materials for both group activities and seatwork by students are to aid in the teaching of numbers, days of the week, and months; telling time; recognizing symmetry in two- and three-dimensional figures; making a calendar; learning the value of a cent, nickel, dime, and quarter; and recording temperature changes on a Celsius thermometer. Some supplementary materials are to be cut out for manipulations by small groups or individuals, while others are to be used full size. The worksheets are to be presented under supervision rather than presented as independent tasks. Introductions to the supplement and ditto packet are in both English and Spanish. (RS)