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A Study of Slope Explanations across a Standards-Based Textbook Series

Artigo2022

Courtney Nagle; Deborah Moore-Russo; Thomas Fisher

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Resumo

This study analyses a standards-based textbook series to investigate how slope is presented across seven sequential textbooks in a secondary mathematics curriculum. Analysis of the expository content across the textbooks shows that slope is covered in all seven books, is frequently described as a "Constant Parameter" or "Ratio," is frequently used in real-world contexts, and is often described alongside covariational language of how inputs and outputs change in relation to one another. Results indicate that "Determining Property" and "Steepness" components of slope are less prevalent and disproportionately unlikely to be accompanied by covariational language and applications compared with the other slope components. Although many consistencies were found across the textbook series, differences in emphases from one textbook to another are also discussed and connected to the recommendation that future work around slope investigate its development across the secondary curriculum. Results are discussed relative to students' preparation for specific calculus topics that build on prior knowledge of slope. Implications for both teachers and researchers are provided.

Dados da obra

Tipo
Artigo
Periódico
International Journal for Mathematics Teaching and Learning
Ano
2022
Idioma
en
Palavras-chave
Secondary School Mathematics; Textbooks; Textbook Content; Mathematical Concepts; Language Usage; Mathematics Instruction; Algebra; Calculus
Temas
Álgebra, Cálculo, Currículo
ISSN
1473-0111
Acesso
Metadados apenas
Fontes
ERIC — Education Resources Information Center
Na Biblioteca desde
01/10/2026 · verificada em 03/10/2026

Como citar

ABNT
NAGLE, Courtney; MOORE-RUSSO, Deborah; FISHER, Thomas. A Study of Slope Explanations across a Standards-Based Textbook Series. International Journal for Mathematics Teaching and Learning, 2022. Disponível em: https://www.cimt.org.uk/ijmtl/index.php/IJMTL/article/view/403. Acesso em: 5 nov. 2026.

APA

Nagle, C., Moore-Russo, D., & Fisher, T. (2022). A Study of Slope Explanations across a Standards-Based Textbook Series. International Journal for Mathematics Teaching and Learning. https://www.cimt.org.uk/ijmtl/index.php/IJMTL/article/view/403

BibTeX
@article{nagle2022,
  author = {Nagle, Courtney and Moore-Russo, Deborah and Fisher, Thomas},
  title = {A Study of Slope Explanations across a Standards-Based Textbook Series},
  year = {2022},
  journal = {International Journal for Mathematics Teaching and Learning},
  url = {https://www.cimt.org.uk/ijmtl/index.php/IJMTL/article/view/403},
  language = {en}
}
RIS
TY  - JOUR
AU  - Nagle, Courtney
AU  - Moore-Russo, Deborah
AU  - Fisher, Thomas
TI  - A Study of Slope Explanations across a Standards-Based Textbook Series
PY  - 2022
JO  - International Journal for Mathematics Teaching and Learning
UR  - https://www.cimt.org.uk/ijmtl/index.php/IJMTL/article/view/403
LA  - en
ER  -

Referência gerada automaticamente a partir dos metadados das fontes; confira com o documento original. Baixar BibTeX · Baixar RIS

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