Reasoning through language arts. Interpreting nonfiction and informational text -- Analyzing nonfiction and information text -- Interpreting fiction -- Writing effective sentences -- Connecting ideas -- Writing about text -- Polishing your writing -- Using grammar correctly -- Using writing mechanics -- Mathematical reasoning. Number sense and problem solving -- Decimals and fractions -- Ratio, proportion, and percent -- Data, statistics, and probability -- Algebra basics, expressions, and polynomials -- Equations, inequalities, and functions -- Geometry -- Social studies. Social studies practices -- U.S. History -- Civics and government -- Economics -- Geography and the world -- Science. Science practices -- Life science -- Earth and space science -- Physical science -- Practice tests -- Answers and explanations -- GED test resources.