TY - BOOK AU - Silla, Elena M. AU - Silla, Elena M. ED - Barbieri, Christina Areizaga. ED - Newton, Kristie J. TI - Procedural flexibility on fraction arithmetic and word problems predicts middle-schoolers' differential algebra skills U1 - Dper 370.15 J826 January-April 2024 v. 116 n. 1-3 PY - 2024/// CY - Washington, DC PB - American Psychological Association N1 - Journal of Educational Psychology, vol. 116, no. 1-3, pages 195-211, January-April 2024 ER -