Why is learning fraction and decimal arithmetic so difficult?

H Lortie-Forgues, J Tian, RS Siegler - Developmental Review, 2015 - Elsevier
Fraction and decimal arithmetic are crucial for later mathematics achievement and for ability
to succeed in many professions. Unfortunately, these capabilities pose large difficulties for …

Numerical development

RS Siegler, DW Braithwaite - Annual review of psychology, 2017 - annualreviews.org
In this review, we attempt to integrate two crucial aspects of numerical development:
learning the magnitudes of individual numbers and learning arithmetic. Numerical …

A theoretical framework for studying teachers' curriculum supplementation

D Silver - Review of Educational Research, 2022 - journals.sagepub.com
The vast majority of US teachers supplement their officially adopted curriculum materials
with unofficial materials. Despite this, the body of supplementation-relevant literature tends …

A typology for analyzing digital curricula in mathematics education

J Choppin, C Carsons, Z Bory, C Cerosaletti… - International Journal of …, 2014 - ijemst.org
Digital content is increasingly present in US K-12 classrooms, with a current push by federal
officials to increase the rate at which digital textbooks are adopted. While some teachersâ …

Scaffolding learner-centered curricular coherence using learning maps and diagnostic assessments designed around mathematics learning trajectories

J Confrey, G Gianopulos, W McGowan, M Shah… - ZDM, 2017 - Springer
The paper describes how designers used the construct of learning trajectories to create a
tool, Math-Mapper 6–8, to help scaffold curricula toward increased learner-centered …

Is the Common Core racing America to the top? Tracking changes in state standards, school practices, and student achievement

J Lee, Y Wu - Education Policy Analysis Archives, 2017 - epaa.asu.edu
This study examines the trends of the US states' reading and math proficiency standards
before and after the adoption of the Common Core State Standards (CCSS) and explores …

Teachers, tasks, and tensions: Lessons from a research–practice partnership

R Johnson, S Severance, WR Penuel… - Journal of Mathematics …, 2016 - Springer
How teachers make sense of new academic standards significantly shapes the
implementation of those standards. Professional development organized around the …

Middle school teachers' differing perceptions and use of curriculum materials and the common core

A Roth McDuffie, J Choppin, C Drake, JD Davis… - Journal of Mathematics …, 2018 - Springer
Eight middle school mathematics teachers' perceptions and uses of curriculum materials
and the Common Core State Standards for Mathematics (CCSSM) were investigated …

Middle school mathematics teachers' perceptions of the Common Core State Standards for Mathematics and related assessment and teacher evaluation systems

A Roth McDuffie, C Drake, J Choppin… - Educational …, 2017 - journals.sagepub.com
In this study, US middle school teachers' perceptions of Common Core State Standards for
Mathematics (CCSSM), CCSSM-related assessments, teacher evaluation processes, and …

Teacher-created videos in a flipped mathematics class: digital curriculum materials or lesson enactments?

Z de Araujo, S Otten, S Birisci - ZDM, 2017 - Springer
The rise of digital resources has had profound effects on mathematics curricula and there
has been a concurrent increase in teachers flipping their instruction—that is, assigning …