Click anywhere to be redirected to our new site, which includes product information, order forms, a Sales directory, and our all-new eCommerce portal. We'll see. The last part measure how well students understand some of the important symbols of algebra and how they are used. Page 2. Sample Items. The following items. Iowa Algebra Aptitude Test™ (IAAT™), Fifth Edition, assesses students' readiness for Algebra I, including any additional support and intervention they may need.Having bought a subscription, you can download this or other directories on our website. To download the file, click on the button below.