For Our Middle School (grades 5-8): Disk 1, Multiplication: Basic Facts; Concept Building; Basic Algorithm; Estimation. Disk 2, Geometry—Points, Lines, etc.; Classification of Solids. Disk 3, Geometry: Properties and Patterns—Solids; Plotting Points in the Coordinate System. Disk 4, Common Fractions: Concept Building; Equivalent Fractions. Disk 5, Common Fractions: Comparing; Addition. Disk 6, Measurement: Perimeter; Circumference. Disk 7, Measurement: Area of Rectangle; Volume—Rectangular Prism. Disk 8, Statistics: Concept Building; Range; Mode and Frequency Distribution. Apple II⁺, DOS 3.3