Data organization, representation, and interpretation is directly related to real world problems and concentrates on those factors in eighth grade. Probability has greater emphasis than previous grades along with the more abstract ways of solving problems with number theory, diagram, and networks. Ninth Grade - Ninth grade covers topics equivalent to previous grades but expands into more encompassing areas. For example, number sense focuses on parameter changes when graphing functions and more representation of numbers in equations. Geometry brings in concepts of trigonometry connecting that to the previous learned polygons, perimeter, area, and volume.
Data analysis utilizes the statistical methods in data interpretation and probability predictions.
Patterns of all kinds are developed, explained, and continued then related to real world situations. Similarities and differences are examined among mathematical systems while concepts of reasoning and applied mathematics become evident at the end of the grade level. Tenth Grade - Tenth grade emphasis is similar to 9th grade with greater dependency on variables, parameters, and their corresponding equations. Geometry expands to proofs and classification terminology while continuing to examine trigonometry and its applications. Patterns are examined in data transformations as well as other areas.