Students who learn the language of instruction as an additional language represent a heterogeneous group with varying linguistic and cultural backgrounds, contributing to classroom diversity. Because of the manifold challenges these students encounter while learning the language of instruction, additional barriers arise for them when engaging in…

Despite the rapid growth of English Medium Instruction (EMI) programmes around the globe, the language goals in such programmes have not been clearly defined, making it difficult to evaluate their success. Accordingly, our paper reports on a study that attempted to identify the language goals, operationalised as the vocabulary expected of…

The rising demand for dual-language immersion (DLI) programs, which offer core instruction in two languages from early grades onward, has raised questions about program design and access. We leverage the rapid expansion of DLI schools across the U.S. state of Utah to estimate effects of DLI program availability on the academic achievement of…

In Lebanon, science is taught in an international language (French or English) based on a language-in-education policy rooted in Lebanon's colonial history. Given the intersection among social/socioeconomic class, educational equity, and science performance, learning science in a language other than one's own raises concerns around…

As the content knowledge of English language learners and immigrant students is assessed in their less proficient language, the validity and fairness of assessments related to those students have been widely discussed. However, such assessment issues have not received much attention in rapidly expanding bilingual education programmes, where…

The Office of English Language Acquisition (OELA) has synthesized key data on English learners (ELs) into two-page sheets on a variety of subjects. This fact sheet provides the following data on ELs in the United States over the 2017-2018 school year: (1) Percentage of Students Enrolled in K-12 Who Are English Learners; (2) English Language…

This article reports on two quantitative studies of English learners' (ELs) interactions with constructed-response items from a Grade 5 state science test. Study 1 investigated the relationships between the constructed-response item-level variables of English Reading Demand, English Writing Demand, and Background Knowledge Demand and the…

This paper compares direct measures of content knowledge for students studying Chemistry through English Medium Instruction (EMI) and Japanese Medium Instruction (JMI). It also examines a range of contextual differences between the two mediums of instruction. A total of 53 undergraduate students undertook pre-post course content tests at a…

Multilingual learners face significant challenges when navigating the linguistic complexities of chemistry assessments. This study, employing the Equitable Framework for Classroom Assessment, identified these specific challenging features in general chemistry assessment items on the topics of limiting reactant and percent yield. Through in-depth,…

Integrated assessment evaluates language proficiency through tasks that require the test-taker to produce a written or spoken output based on listening or reading comprehension (reading or listening-into-writing or speaking). Since integrated assessment aims at reflecting the communicative and cognitive requirements of academic life and other…

We explore the impact of the language of instruction on academic performance of Arabic-speaking students who are expected to learn mathematics and science in and through a second language (L2). Using as a theoretical background Cummins's (1984) framework relating language proficiency to academic achievement, we provide some insights into the…

This article examines the conceivable rationales as to why Korean students' English-speaking proficiency scores are not as outstanding as other international standardized test scores such as the Trends in International Mathematics and Science Study (TIMSS) and the Program for International Student Assessment (PISA). Despite the efforts of the…

During the academic year in the state of Georgia, EL students in public schools take the Georgia Milestones End-of-Grade and the ACCESS 2.0 assessments, which are in line with the state-mandated subject area standards in mathematics, science, language arts, and social studies, as well as English language proficiency standards (Georgia Department…

Traditionally, content assessments have been carried out through written language. However, the latest standards in U.S. K-12 education expect all students, including English learners (ELs), to demonstrate their content learning using multiple modalities. This study examined the performance of fifth-grade students at varying levels of English…

This article claims to provide evidence on whether content-subject and cognitive achievement vary in CLIL (Content and Language Integrated Learning) and non-CLIL classrooms in the framework of a newly introduced CLIL programme in Italy. A standardized and validated science test (TIMSS) was administered to a sample 988 fourth-grade students. The…