The DOI matches its Crossref record.
Number Concepts and Operations in the Middle Grades
Overview
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Integrity signals
Registry
Cites
Statistics
Verification
Claims the paper makes
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Self-check
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Citations
Cited by
Stein, M. K., Engle, R. A., Smith, M. S., & Hughes, E. K. (2008) · Mathematical Thinking and Learning · doi:10.1080/10986060802229675 · Cited by 1,222
Productive struggle in middle school mathematics classrooms
Warshauer, H. K. (2015) · Journal of Mathematics Teacher Education · doi:10.1007/s10857-014-9286-3 · Cited by 208
Johnson, H. L. (2012) · The Journal of Mathematical Behavior · doi:10.1016/j.jmathb.2012.01.001 · Cited by 119
Woodward, J., & Baxter, J. (1997) · Exceptional Children · doi:10.1177/001440299706300306 · Cited by 112
The Algebraic Nature of Fractions: Developing Relational Thinking in Elementary School
Empson, S. B., Levi, L., & Carpenter, T. P. (2011) · Advances in Mathematics Education · doi:10.1007/978-3-642-17735-4_22 · Cited by 85
Metadata
- Authors
- Hiebert, J., & Behr, M.
- Venue
- Routledge eBooks
- Publisher
- Routledge
- Published
- 2025-11-24
- OpenAlex
- W1500112243
- Cited by
- 595
- References
- 0
- FWCI
- 23.62
- Type
- book
- Language
- en
- Open access
- closed
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
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How to cite
Cite CoChat for the checks on this page, and the paper for its own findings.
- This page
- CoChat. (2026). Citation check: Number Concepts and Operations in the Middle Grades. https://app.cochat.ai/papers/10.4324/9781003726777
- The paper
- Hiebert, J., & Behr, M. (2025). Number Concepts and Operations in the Middle Grades. Routledge eBooks. https://doi.org/10.4324/9781003726777
Data sources
Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
