Evaluating curriculum alignment, accuracy, and readability of ‘environmental disaster, sanitation, and waste management
Paper Details
Evaluating curriculum alignment, accuracy, and readability of ‘environmental disaster, sanitation, and waste management
Abstract
This study evaluated the curriculum alignment, accuracy, and readability of the instructional material titled Environmental Disaster, Sanitation, and Waste Management. The research aimed to assess whether the content aligns with prescribed educational standards, verify the accuracy of the information presented, and determine the readability level of the text. Using a mixed-method approach, the study analyzed 10 curriculum standards, fact-checked 50 key content points, and assessed readability using the Flesch-Kincaid Grade Level formula. Results indicate that 85% of the material aligns with the prescribed curriculum, while 15% requires revision for better coherence. Accuracy evaluation revealed that 78% of the content is factually sound, with 22% needing updates due to outdated or unclear information. Readability analysis showed an average Flesch-Kincaid grade level of 11, suggesting that the material may be too complex for some learners. The study concludes with recommendations for improving content accuracy, refining language complexity, and incorporating more engaging instructional strategies to enhance comprehension. These findings provide valuable insights for curriculum developers, educators, and policymakers aiming to improve instructional materials in environmental education.
Addas A, Muhammad NK, Naseer F. 2024. Waste management 2.0 leveraging the Internet of things for an efficient and eco-friendly smart city solution. PLOS ONE 19(7), e0307608. https://doi.org/10.1371/journal.pone.0307608
Anderson P, Kim S. 2023. The impact of curriculum alignment on educational material effectiveness. Journal of Curriculum Development 18(1), 75–92.
Asyfiradayati R, Umaroh AK, Wulandari W, Porusia M, Novembe JB, Khairunnisa N. 2024. Environmental analysis of basic sanitation quality of residential houses in Cokro Spring Stream, Central Java, Indonesia. IOP Conference Series: Earth and Environmental Science 1357(1), 012023. https://doi.org/10.1088/1755-1315/1357/1/012023
Brown P, Stevens R, Adams L. 2023. Student perceptions vs. teacher evaluations of learning materials. Journal of Educational Psychology 28(1), 55–72.
Ceylan D, Elaldı Ş. 2024. An examination of preschool teachers’ use of interactive book reading. Bartın Üniversitesi Eğitim Fakültesi Dergisi 13(3), 483–499. https://doi.org/10.14686/buefad.1123655
Chen L, Davis R, Wong M. 2023. Readability in educational materials: the role of curriculum alignment. Journal of Educational Research 15(4), 203–219.
Chen L, Zhang Y, Wu H. 2023. Enhancing textbook effectiveness through content validation and instructional design. Journal of Educational Research and Innovation 15(2), 112–130.
Esposito GDV, Visconti C, Ganbat G, Rigillo M. 2023. A collaborative approach for triggering environmental awareness: the 3Rs for sustainable use of natural resources in Ulaanbaatar (3R4UB). Sustainability 15(18), 13846. https://doi.org/10.3390/su151813846
Fadhullah W, Nor Iffah NI, Sharifah Norkhadijah SI, Jaafar MH, Abdullah H. 2022. Household solid waste management practices and perceptions among residents in the East Coast of Malaysia. BMC Public Health 22, 1–20. https://doi.org/10.1186/s12889-021-12274-7
Felician AK, Ojo TO, Emenike CU, Khumalo NZ, Elhindi KM, Kassem HS. 2024. The impact of poor waste management on public health initiatives in shanty towns in Tanzania. Sustainability 16(24), 10873. https://doi.org/10.3390/su162410873
Graham RED. 2024. A study of illegal dumping near coastal zones and waterways in Grenada: advancing waste management solutions and reducing marine litter. PLOS Water 3(4), e0000175. https://doi.org/10.1371/journal.pwat.0000175
Grangxabe XS, Maphanga T, Madonsela BS, Gqomfa B, Takalani TP, Malakane KC, Kgabo HT, Angwenyi D. 2023. The escalation of informal settlement and the high levels of illegal dumping post-apartheid: systematic review. Challenges 14(3), 38. https://doi.org/10.3390/challe14030038
Harrison J, Patel S. 2022. The impact of content structure on student comprehension. International Journal of Education and Learning 12(2), 88–105.
Jayasinghe PA, Jalilzadeh H, Hettiaratchi P. 2023. The impact of COVID-19 on waste infrastructure: lessons learned and opportunities for a sustainable future. International Journal of Environmental Research and Public Health 20(5), 4310. https://doi.org/10.3390/ijerph20054310
Johnson R, Lee T. 2022. Enhancing textbook accuracy through curriculum-based revisions. Educational Research and Innovation 10(3), 112–129.
Khanal A, Giri S, Mainali P. 2023. The practices of at-source segregation of household solid waste by the youths in Nepal. Journal of Environmental and Public Health 2023, 5044295. https://doi.org/10.1155/2023/5044295
Li-Yang C, Yi-Jing L, Wu P, Yi-Liang K. 2025. Cross-cultural adaptation and validation of the Chinese version of the modified Fresno test for physical therapists. BMC Medical Education 25, 1–9. https://doi.org/10.1186/s12909-024-06615-4
Lopez M, Carter J. 2022. Curriculum alignment and student engagement: a comparative study. International Journal of Educational Research 17(2), 89–104.
Madden B. 2023. Examining resource recovery pathways for low carbon waste management in New South Wales, Australia. Doctoral dissertation, Publicly Available Content Database (Order No. 30668351). https://www.proquest.com/dissertations-theses/examining-resource-recovery-pathways-low-carbon/docview/2878255154/se-2
Madonsela BS, Semenya K, Shale K. 2024. A review of indigenous knowledge systems and their application in sustainable solid waste management. World 5(2), 219. https://doi.org/10.3390/world5020012
Martinez P, Carter L. 2023. The role of content validity in educational material development. International Journal of Curriculum Studies 9(2), 45–63.
Martinez P, Johnson K. 2022. The role of content validity in educational material development. International Journal of Curriculum Studies 9(1), 45–62.
Moshkal M, Akhapov Y, Ogihara A. 2024. Sustainable waste management in Japan: Challenges, achievements, and future prospects: A review. Sustainability 16(17), 7347. https://doi.org/10.3390/su16177347
Thompson B, Rivera C. 2023. The relationship between curriculum alignment and student comprehension. Educational Review 28(3), 140–157.
Williams R, Carter T. 2023. Addressing factual inconsistencies in environmental education materials. Journal of Environmental Studies 20(4), 211–225.
Analyn I. Diola*, Priscilla R. Castro, 2026. Evaluating curriculum alignment, accuracy, and readability of ‘environmental disaster, sanitation, and waste management. J. Biodiv. Environ. Sci., 28(2), 1-11.
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