THIS WORKBOOK WAS DEVELOPED IN A CURRICULUM PROJECT DESCRIBED IN VT 004 454 TO HELP YOUNG PEOPLE LEARN BASIC PRINCIPLES AND CONCEPTS OF MECHANICS AND TECHNOLOGY. IT IS THE THIRD OF FOUR BOOKS WHICH PRESENT 30 EXERCISES DESIGNED FOR 30 CLASS PERIODS. THE EXERCISES, SIMILAR TO THOSE IN APTITUDE TESTS, COVER ABSTRACT REASONING, TECHNICAL COMPREHENSION, AND THREE-DIMENSIONAL VISUALIZATION. EXERCISE ITEMS ARE MULTIPLE CHOICE QUESTIONS, LINE DRAWINGS, AND NUMBER SERIES. ANSWERS ARE AVAILABLE IN VT 004 461. OTHER RELATED DOCUMENTS ARE VT 004 455 THROUGH VT 004 471. (EM)