TY - GEN TI - Early algebra ideas involving two variables: Romina and Brian work on Guess My Rule problems 3 and 4 DO - https://doi.org/doi:10.7282/T3JD4V59 AU - Davis, Robert B. PY - 1993-10-01 KW - Sample of human subjects KW - Mathematics education KW - Learning, Psychology of--Case studies KW - Problem solving KW - Reasoning and proof KW - Communication KW - Connections KW - Representation KW - Classroom KW - Female KW - White KW - Student view KW - Direct reasoning KW - Recognizing a pattern KW - 6-8 KW - 6 KW - Work view KW - Algebra KW - Open sentence in two variables KW - Worksheet with problem statements KW - Equations KW - Box and triangle notations for variables KW - Function tables KW - Truth sets KW - Finite differences KW - Linear equations KW - Y-intercept KW - Constant KW - Critical thinking in children--New Jersey--Case studies ER -