%0 Dataset %T Improvement of Elementary Fractions Instruction: Randomized Controlled Trial Using Lesson Study with a Fractions Resource Kit, United States, 2016-2018 %A Lewis, Catherine %A Schoen, Robert C. %D 2022-10-06 %R 10.3886/ICPSR38205.v1 %I Inter-university Consortium for Political and Social Research [distributor]