TY - GEN TI - Early algebra ideas involving one variable, Clip 11 of 11: Are there impossible equations? DO - https://doi.org/doi:10.7282/T3C24VBJ AU - Davis, Robert B. (Robert Benjamin) AU - Maher, Carolyn Alexander AU - Alston, Alice S. AU - Martino, Amy Marie AU - O'Brien, Marcia Joan AU - Poe, Michael PY - > 1999-09-30 KW - Sample of human subjects KW - Mathematics education KW - Learning, Psychology of--Case studies KW - Critical thinking in children--New Jersey--Case studies KW - 6-8 KW - Algebra KW - Problem solving KW - Reasoning and proof KW - Communication KW - Connections KW - Representation KW - 6 KW - Algebra KW - Open sentence in one variable KW - Color markers KW - Direct reasoning KW - Substituting numbers for variables KW - Equations KW - Classroom KW - Public school KW - Teacher view KW - Side view KW - Mixed KW - Mixed KW - Worksheet with problem statements KW - Guessing and checking KW - Generalizing KW - Reasoning by contradiction KW - Box notation for variable KW - Truth sets KW - Positive and negative integers KW - Factors KW - Multiples KW - Quadratic equations ER -