To help students learn chemical skills and concepts more effectively‎,‎ Introductory Chemistry‎:‎ Concepts and Critical Thinking with MasteringChemistry‎(‎R‎)‎‎,‎ Sixth Edition highlights the connection between key concepts and key problem‎-solving skills through critical thinking‎.‎ Math and problem solving are covered early in the text‎;‎ Corwin builds your problem‎-solving ability through innovative learning aids and technology formulated to meet your needs‎.‎ This revision retains all the strengths of the previous editions‎,‎ while adding emphasis on conceptual understanding and critical thinking‎.‎