page_title: Elementary mathematics
section_title: Data representation and analysis
hierarchical_section_title: Elementary mathematics / Strands of Elementary Mathematics / Data representation and analysis
context_page_description: Elementary mathematics consists of mathematics topics frequently taught at the primary or secondary school levels.
  There are five basic strands in Elementary Mathematics: Number Sense and Numeration, Measurement, Geometry & Spatial Sense, Patterning & Algebra, and Data Management & Probability. These five strands are the focus of Mathematics education from grade one till grade 8.
  In secondary school, the main topics in elementary mathematics from grade nine until grade ten are: Number Sense and algebra, Linear Relations, Measurement and Geometry. Once students enter grade eleven and twelve students begin university and college preparation classes, which include: Functions, Calculus & Vectors, Advanced Functions, and Data Management.
context_section_description: Data is a set of values of qualitative or quantitative variables; restated, pieces of data are individual pieces of information. Data in computing (or data processing) is represented in a structure that is often tabular (represented by rows and columns), a tree (a set of nodes with parent-children relationship), or a graph (a set of connected nodes). Data is typically the result of measurements and can be visualized using graphs or images.
  Data as an abstract concept can be viewed as the lowest level of abstraction, from which information and then knowledge are derived.
caption: An example histogram of the heights of 31 Black Cherry trees. Histograms are a common tool used to represent data.