41. "The schools want money for workbooks that I don't have. 42. Each 30-minute video is accompanied by a 22-page personal workbook . 43. During the week, the seven students work on group projects or in workbooks . 44. Judson wrote or co-wrote textbooks and workbooks used in introductory geology classes. 45. But a recent survey showed about 30 percent still had not used the workbook . 46. Clayton Unruh has his seventh-grade spelling workbook open to a crossword puzzle. 47. Multicolored workbooks are piled from floor to ceiling. 48. Lockyer said the curriculum consisted of a slim workbook riddled with errors, including: 49. The course includes workbooks , textbooks, and a 52-episode television series. 50. One limitation is that DIF format cannot handle multiple spreadsheets in a single workbook .
