This reflection stems from my ongoing doctoral research, which investigates the design of curricula informed by neuroscience and the application of neuroplasticity principles to tackle diversity in globalized educational settings. We teachers often put significant effort into grammar and vocabulary. But if we use the ideas behind cognitive neuroplasticity, we can turn IA preparation from a stressful memorization task into a strategic reconfiguration of the brain.
The Brain as a Language Sculptor
Neuroplasticity is the inherent capacity of the nervous system to alter its structure and function in response to experiences. In second language (L2) acquisition, the process entails more than mere "storage" of words; it requires the formation of novel synaptic networks that facilitate swift access to information.
"Plasticity is not an occasional property of the brain but its normal state throughout life" (Pascual-Leone et al., 2014, p. 818). Learning a new language changes the structure of gray matter and makes white matter stronger, which makes it easier for neurons to talk to each other.
This means that every practice of describing an image is literally sculpting the cerebral cortex of our ab initio students. The key to a successful IA is how well we improve the "sculpting" process. One of the hardest things about the IB’s Individual Oral is that working memory gets full. When a student has trouble remembering a simple conjugation, they use up resources that should be used to understand the photo in a cultural way. Hattie and Yates (2014) conducted research that stated the following, "Fluency is attained when fundamental processes become automatic, thereby freeing working memory for advanced cognitive functions and intricate problem-solving" (p. 56).
Instead of practicing for the whole IA once a month, spend 10 minutes every day on "micro-descriptions." The goal is to automate connectors (like "en primer plano," "a la derecha," and "me parece que") so that the student's brain doesn't waste glucose looking for them on test day. Instead, it uses that glucose to think about complicated ideas.
The Affective Filter and Multisensory Anaphors
Stress is the main thing that makes plasticity go away. When cortisol floods the brain during a high-stakes test, the amygdala takes over the executive functions of the prefrontal cortex, which is where structured language is stored. Immordino-Yang (2016) states, "It is neurobiologically impossible to construct profound memories or execute intricate decisions when the brain is in a state of threat" (p. 18). Learning and emotion are mutually dependent processes.
To fight this issue, we need to "demystify" the process of recording. We lessen the amygdala's threat response by having them record their own voice in Spanish every week. This lets neuronal networks work more smoothly. Also, neuroplasticity gets better when information is stored in more than one way. Dual coding theory posits that linking images with verbal concepts enhances retrieval pathways. "Combining visual and auditory stimuli while learning a language not only helps you remember things better, but it also activates more motor and sensory areas" (Shams & Seitz, 2008, p. 411), making the memory trace stronger and less likely to be forgotten.
When teaching thematic areas (Identidades, Ingenio Humano, Experiencias), don't just use flat vocabulary lists. Have students make "sensory mind maps" where they link a picture to a sound, a smell, and a Spanish phrase. This makes several "anchor points" in the brain, which makes it easier to remember words when you're under pressure.
The Role of Consolidation and the Teacher
We often forget that plasticity happens mostly when the student is sleeping. During sleep, the hippocampus moves information it has learned to the cortex for long-term storage. Walker (2017) notes, "Sleep is not a passive state but an active period of memory consolidation where synaptic connections formed during the day are strengthened or pruned, optimizing cognitive performance for the following day" (p. 108).
Promoting a culture of "mindful preparation," like going over IA notes right before bed instead of cramming all night, takes advantage of this "overnight incubation" to improve verbal fluency.
Ultimately, comprehending the ab initio internal assessment through the perspective of neuroplasticity transforms our function as educators. We are no longer just teachers of grammar and test-takers; we are also designers of environments that help the brain change. We provide our students the best biological tools for success by using automation to lower cognitive load, controlling the emotional environment to calm the amygdala, and using multisensory strategies. The International Baccalaureate wants us to teach students who are curious and willing to take risks. Neuroscience tells us that we need to help them build a brain that is ready for the challenge before we can do the work.
References
Hattie, J., & Yates, G. (2014). Visible learning and the science of how we learn. Routledge.
Immordino-Yang, M. H. (2016). Emotions, learning, and the brain: Exploring the educational implications of affective neuroscience. W. W. Norton & Company.
Pascual-Leone, A., Freitas, C., Oberman, L., Horvath, J. C., Halko, M., Eldaief, M., Bashir, S., Vernet, M., Shafi, M., Westover, B., Vahabzadeh-Hagh, A. M., & Rotenberg, A. (2011). Characterizing brain cortical plasticity and network dynamics across the age-span in health and disease with TMS-EEG and TMS-fMRI. Brain topography, 24(3-4), 302–315. https://doi.org/10.1007/s10548-011-0196-8
Shams, L., & Seitz, A. R. (2008). Benefits of multisensory learning. Trends in Cognitive Sciences, 12(11), 411–417. https://doi.org/10.1016/j.tics.2008.07.006
Walker, M. (2017). Why we sleep: Unlocking the power of sleep and dreams. Simon & Schuster.
Harold Hernández C. is a doctoral candidate and experienced IB teacher with over 18 years of experience in Ethiopia, Taiwan, Colombia, Canada, and the United States. He currently teaches Diploma Programme (DP) and Middle Years Programme (MYP) Spanish at the International Community School of Addis Ababa (ICS), specializing in Spanish Ab Initio and MYP Spanish Language Acquisition. A dedicated education researcher, Harold is pursuing his doctorate in Education and Leadership, focusing on neuroscience-based curriculum design that leverages neuroplasticity to create inclusive learning environments. Since 2018, he has also served as an IB examiner for MYP Spanish B and Personal Project, as well as for DP Spanish ab initio.
