EXHIBIT 32.1 CERTIFICATION OF ANNUAL REPORT Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, 18 U.S.C. Section 1350, the undersigned officer of Renaissance Learning, Inc. (the "Company"), hereby certifies that, to the undersigned's knowledge: (1) the Company's Annual Report on Form 10-K for the year ended December 31, 2003 (the "Report") fully complies with the requirements of Section 13(a) or 15(d), as applicable, of the Securities Exchange Act of 1934; and (2) the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company. Dated: March 5, 2004 /s/ John R. Hickey ----------------------------------------- Name: John R. Hickey Title: President, Chief Executive Officer THIS WRITTEN STATEMENT ACCOMPANIES THIS REPORT PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 AND SHALL NOT BE DEEMED TO BE FILED BY THE COMPANY FOR PURPOSES OF THE SECURITES EXCHANGE ACT OF 1934.