CK-12 Foundation
Ck 12: Statistics: Double Line Graphs
[Free Registration/Login may be required to access all resource tools.] Construct and interpret double line graphs.
ClassFlow
Class Flow: Graphs
[Free Registration/Login Required] This flipchart presents bar and double bar graphs, line and double line graphs, pictographs, histograms, and circle graphs with review activities and web links for practice.
University of Cambridge
University of Cambridge: Nrich: Graphing Number Patterns
On this one page website sharpen your logic, graphing and pattern recognition skills while working on this challenge. The solution is available to double check your solution.
Oswego City School District
Regents Exam Prep Center: Linear Inequalities
A complete review of linear inequalities interval notation, and compound inequalities. Several applications of the compound inequalities are given along with solutions and explanations. Links to sites assisting with graphing calculator...
Curated OER
Double Line Conic
An overview of the four types of conic sections is presented. The origin of how each conic is formed and a table of various characteritics specific to each type of conic is shown.
National Council of Teachers of Mathematics
Nctm: Illuminations: Geogebra: Dynagraphs
Explore relationships between inputs and outputs by manipulating interactive double number lines.
Other
Stat Soft: Statistics Glossary
Dozens of statistical terms are defined and illustrated in this glossary.