Learning activity packages are presented for teaching tractor mechanics. The first of two sections deals with miscellaneous tasks and contains learning activity packages on cleaning the tractor and receiving new tractor parts. Section 2 is concerned with maintaining and servicing the electrical system, and it includes the following learning activity packages: testing the battery, servicing battery connections, activating a battery, charging a battery, testing the charging circuit, adjusting the voltage regulator, servicing the alternator, servicing the generator, replacing the amperage guage, servicing the ignition wires, servicing the distributor, testing the starter circuit, servicing the starter motor, replacing the starter motor, and replacing the ring gear on a flywheel. Typically the packages contain the following format: introduction, directions, objectives, learning activities, tools and equipment needed, materials and supplies needed, safety, instructions, student self-check, check-out activities, and instructor's final check list. The packages are illustrated. (CSS)