. . . EXHIBIT 99.1 Schedule II - Valuation and Qualifying Accounts ACQUISITION DEDUCTIONS BEGINNING OF ADDITIONS CHARGED CHARGED TO BALANCE BUSINESS TO INCOME RESERVE ENDING BALANCE ----------- ----------- ----------------- ---------- -------------- Accounts receivable allowances - 2006 $ 1,340,000 - $ 2,729,000 $2,936,000 $ 1,133,000 Accounts receivable allowances - 2005 $ 1,283,000 $ 260,000 $ 1,892,000 $2,095,000 $ 1,340,000 Accounts receivable allowances - 2004 $ 1,341,000 - $ 2,040,000 $2,098,000 $ 1,283,000 REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM TO THE BOARD OF DIRECTORS AND SHAREHOLDERS OF RENAISSANCE LEARNING, INC. AND SUBSIDIARIES: We have audited the consolidated financial statements of Renaissance Learning, Inc. and subsidiaries (the "Company") as of December 31, 2006 and 2005, and for each of the three years in the period ended December 31, 2006, management's assessment of the effectiveness of the Company's internal control over financial reporting as of December 31, 2006, and the effectiveness of the Company's internal control over financial reporting as of December 31, 2006, and have issued our reports, which included an explanatory paragraph related to the Company's adoption of Statement of Financial Accounting Standard No. 123R, Accounting for Stock Based Compensation, thereon dated February 23, 2007; such reports are included elsewhere in this Form 10-K. Our audits also included the consolidated financial statement schedule of the Company listed in Item 15. The consolidated financial statement schedule is the responsibility of the Company's management. Our responsibility is to express an opinion based on our audits. In our opinion, such consolidated financial statement schedule, when considered in relation to the basic consolidated financial statements taken as a whole, present fairly, in all material respects, the information set forth therein. DELOITTE & TOUCHE LLP Milwaukee, Wisconsin February 23, 2007