The Importance of Language Planning in Education

Walk into any classroom around the world and you’re likely to find students who speak different languages at home, carry different cultural identities, and process knowledge through different linguistic lenses. This is not an exception – it’s the norm. According to UNESCO, there are around 7,000 spoken or signed languages in use globally, and at least half the world’s population navigates daily life in two or more languages. Yet education systems have often been designed as if one language fits all. This is where language planning becomes critical. It is the deliberate, policy-driven process of deciding which languages are taught, how they are used in classrooms, and how teachers are prepared to meet the realities of linguistically diverse students.

What is language planning in education? 🔗

Language planning in education refers to a broad range of decisions affecting the structure, function, and acquisition of language in schools. It is not just about choosing which language to teach – it encompasses curriculum design, assessment frameworks, and how teachers are trained to navigate multilingual classrooms. At its core, language planning asks: Who gets to learn in which language, and who decides?

Scholars distinguish three major orientations toward language in educational contexts. Richard Ruiz’s foundational framework identifies them as language-as-problem, language-as-right, and language-as-resource. When minority or immigrant languages are treated as a barrier to overcome, schools end up with policies focused on rapid transition to the dominant language. When language is framed as a right, it opens the door to instruction in a child’s mother tongue. And when language is treated as a resource, it becomes an asset in teaching and learning – the most inclusive and educationally sound of the three orientations.

Why language planning matters for learning outcomes 🔗

The evidence is consistent and compelling: children learn better when taught in a language they understand. A 2025 UNESCO report, Languages Matter, found that 40% of people globally lack access to education in their home language. In some low- and middle-income countries, that figure reaches 90%. In Africa, children taught in a familiar language were found to be 30% more likely to read with understanding by the end of primary school compared to those taught in an unfamiliar one.

In upper-middle- and high-income countries, UNESCO data shows that children who are taught in the language they speak are 14% more likely to read with comprehension at the end of primary school. These are not marginal gains – they represent the difference between students who thrive and those who fall behind through no fault of their own. Language planning, when designed with these realities in mind, is an equity issue as much as a pedagogical one.

The linguistic diversity challenge in schools 🔗

Classrooms have grown significantly more diverse. School classes are more linguistically heterogeneous than ever before, driven by population mobility, migration, and the revival of minority languages in various educational contexts. This diversity, while richly beneficial, presents genuine challenges for school systems that have traditionally operated under monolingual norms.

A persistent issue is what researchers call the deficit orientation toward home languages. Research from high schools in the Netherlands found that teachers often approached students’ home languages as obstacles rather than strengths, which researchers linked to lower academic expectations for linguistic minority students. This mindset – where linguistic difference is treated as a deficiency – is one of the most significant barriers that thoughtful language planning must address.

A well-designed language plan shifts the framing entirely. Rather than viewing a student’s home language as something to be corrected or suppressed, it treats that language as a cognitive and cultural asset. Research reviewed by NAEYC shows that multilingual learners thrive when they have opportunities to share their home languages and transfer knowledge from one language to another – a practice known as translanguaging.

Designing inclusive curricula for linguistically diverse students 🔗

An inclusive curriculum grounded in language planning does not simply translate existing materials into multiple languages. It fundamentally rethinks how content is structured, delivered, and assessed to reflect the full linguistic repertoire of the students it serves.

Mother tongue-based multilingual education 🔗

UNESCO has long advocated for mother tongue-based multilingual education, particularly in the early years of schooling. The approach uses a child’s first language as the primary medium of instruction initially, then gradually introduces a second or official language – first as a subject, then eventually as a parallel medium of instruction. This additive approach prevents knowledge gaps and accelerates learning. Countries such as Ghana, Peru, Singapore, and South Africa have adopted policies promoting mother language education from early childhood with measurable success.

Translanguaging as a classroom strategy 🔗

Translanguaging has emerged as a central pedagogical concept in multilingual education. Rather than treating each language in a learner’s repertoire as separate and sealed, translanguaging allows students to draw fluidly across their full linguistic resources to understand, express, and engage with content. This is not an informal workaround – it is a deliberate instructional strategy that values students’ entire linguistic identity and improves comprehension, particularly in complex subject areas.

Curriculum materials and representation 🔗

Inclusive language planning also means ensuring that curriculum materials reflect students’ linguistic and cultural backgrounds. NAEYC highlights that when students see their families, languages, and cultures reflected in learning environments, it builds belonging and supports language development. This is as true for picture books in early childhood classrooms as it is for texts and resources in secondary education.

The three components of language planning 🔗

Effective language planning in education typically operates across three interconnected areas, often referred to as status planning, corpus planning, and acquisition planning.

Status planning concerns decisions about which languages hold official recognition in education – which ones are used as mediums of instruction and which are acknowledged in national curricula. Corpus planning involves developing and standardizing language resources – creating dictionaries, grammar guides, and teaching materials, particularly for minority or indigenous languages that may lack formal written traditions. Acquisition planning, perhaps most directly relevant to teachers, focuses on how languages are taught and learned, including what is introduced into school curricula, which pedagogical methods are used, and how bilingualism or multilingualism is actively encouraged.

The revival of Hebrew as a modern spoken language in Israel, the protection of Welsh alongside English in Wales, and the promotion of Catalan in Spain are well-documented examples of language planning operating successfully across all three components – with education serving as the central engine of language revitalization and maintenance.

Teacher training: The missing link in language policy 🔗

Even the most thoughtfully crafted language policy will fail without teachers who are equipped to carry it out. Data from a RAND survey of over 7,500 teachers in the United States found that half of teachers reported being unprepared to teach multilingual learners, with two-thirds saying their instructional materials were inadequate. Multilingual learners are the fastest-growing student group, yet the systems meant to train teachers have largely not kept pace.

Why preparation matters – and where it falls short 🔗

Only about half of U.S. states require specific qualifications or pre-service training on teaching multilingual learners for general education teachers – and fewer than one-third of new teachers receive any training on this at all. This gap is not unique to the United States. Research from Germany found that progressive policy frameworks promoting linguistic diversity are insufficient unless accompanied by concrete pedagogical training. Norwegian teachers, despite working within a curriculum that explicitly endorses linguistic diversity, were found to frequently view students’ home languages as obstacles rather than resources – a belief rooted partly in the absence of practical classroom guidance.

What effective teacher training looks like 🔗

TESOL International Association makes a compelling argument that every teacher – regardless of subject area – is a language teacher. Supporting multilingual learners is not solely the responsibility of specialist language educators. Content teachers in science, mathematics, history, and other disciplines are experts in the language of their subjects and must provide language scaffolding to support comprehension and participation. This shift in perspective requires training, not just awareness.

Effective preparation programs for multilingual classrooms typically focus on three dimensions: the mindset to view linguistic diversity as a strength; knowledge of how language acquisition works and how it differs from conversational fluency; and practical skills in using culturally relevant strategies, vocabulary instruction, and collaborative techniques. Research published in educational journals identifies best practices as including tailoring training to the specific cultural and linguistic context of the school, providing continuous professional development, and building a supportive community of practice among educators.

For experienced teachers, job-embedded professional development – where teachers can observe, model, and problem-solve together – is particularly effective. It allows seasoned educators to apply new strategies directly within the context they know best: their own classrooms and students.

Challenges in implementing language planning 🔗

Language planning does not happen in a neutral space. It is shaped by political priorities, resource constraints, and deeply held social attitudes about which languages have value. Research on language-in-education policy notes that even where diversity is formally supported, the inclusion of minority and non-dominant languages can remain peripheral – challenged by monolingual ideologies, unequal funding, and the social prestige attached to dominant languages like English.

Key practical challenges include the shortage of teaching materials in minority languages, the difficulty of recruiting teachers who are fluent in both a mother tongue and the official language of instruction, and resistance from communities or institutions accustomed to monolingual norms. UNESCO’s 2025 guidance recommends that governments actively recruit teachers fluent in learners’ mother tongues and provide ongoing training to deliver multilingual education adapted to specific local contexts. It also calls for meaningful engagement with parents, communities, and Indigenous groups in the design of language education programmes – recognizing that top-down policy alone is rarely sufficient.

Language planning as a tool for equity 🔗

At its best, language planning is an instrument of educational equity. It ensures that no child is disadvantaged in their learning simply because the language of instruction is not the language of their home. It builds curricula that are responsive to the real linguistic lives of students, trains teachers to see multilingualism as a cognitive asset rather than a challenge, and creates policy environments where every language a child speaks is recognized as a legitimate part of their identity and education.

UNESCO’s ongoing work on languages in education frames multilingual education not as a luxury for well-resourced systems, but as a foundational requirement for inclusive, quality learning aligned with the global Sustainable Development Goals. For educators, school leaders, and policymakers alike, investing seriously in language planning – from curriculum design to teacher preparation – is one of the most direct investments they can make in student success.

What do you think? If language planning shapes who succeeds and who struggles in school, how should teacher education programs be redesigned to genuinely prepare new teachers for linguistically diverse classrooms? And when a school’s official curriculum still reflects a single dominant language, what responsibility do individual teachers have to make their classrooms more linguistically inclusive?

References

1. https://www.unesco.org/en/articles/multilingual-education-key-quality-and-inclusive-learning
2. https://link.springer.com/rwe/10.1007/978-3-319-02320-5_2-1
3. https://www.tandfonline.com/doi/full/10.1080/09500782.2016.1261892
4. https://www.unesco.org/en/articles/new-unesco-report-calls-multilingual-education-unlock-learning-and-inclusion
5. https://www.un.org/en/un-chronicle/multilingual-education-key-quality-and-inclusive-learning
6. https://www.tandfonline.com/doi/full/10.1080/19313152.2022.2162761
7. https://www.naeyc.org/resources/pubs/tyc/summer2024/embracing-linguistic-diversity
8. https://www.unesco.org/en/articles/why-mother-language-based-education-essential
9. https://bera-journals.onlinelibrary.wiley.com/doi/10.1002/rev3.3407
10. https://www.vaia.com/en-us/explanations/english/tesol-english/language-planning/
11. https://www.nea.org/nea-today/all-news-articles/are-you-ready-teach-multilingual-classrooms
12. https://www.relay.edu/article/teachers-need-more-support-reaching-multilingual-learners-heres-how
13. https://www.mdpi.com/2227-7102/15/7/802
14. https://www.tesol.org/blog/posts/every-teacher-is-a-language-teacher-strategies-for-supporting-multilingual-learners-of-english-in-the-mainstream-classroom/
15. https://www.researchgate.net/publication/384340767_Implementation_of_Teacher_Training_Providing_Specialized_Training_for_Teachers_to_Handle_Multilingual_Classrooms_Effectively
16. https://www.tandfonline.com/doi/full/10.1080/14664208.2022.2088968
17. https://www.unesco.org/en/languages-education