Reduce Cognitive Load: Unlock Understanding in Math for ELLs

Picture this: you walk into a professional development session, and you are immediately bombarded with rapid-fire academic language. Acronyms are flying by that you aren’t familiar with, the slides are packed with text, and you’re given minimal time to take everything in. On top of that, you’re asked questions, expected to retain and understand the material, and evaluated on it at the end.

Sound overwhelming? You might understand the topic. You might even know what you’re supposed to do. But you haven’t been given the time or space to process the information. Your brain feels full, and it’s only been an hour of your day.

This experience mirrors the cognitive load many English Language Learners (ELLs) experience in math classrooms every day. Before even beginning step one of a math problem, they are already managing multiple demands at once. The math itself hasn’t even started yet. The math classroom ends up an overwhelming place, not due to the content, but due to the cognitive load for ELLs.

Understanding Cognitive Load for ELLs

Cognitive load refers to the amount of mental effort being used in working memory at one time. Essentially, it measures how much of a student’s mental capacity is required to complete a task. For ELLs, that load is often near its maximum simply from processing the language around them, before they are even able to engage with the mathematics itself.

When a student freezes, avoids starting, or says "I don't get it," we could easily assume that they just aren't trying or that it's a lack of effort. In reality, many ELLs are exerting more effort than their peers. Often, when our ELLs go silent, they are overwhelmed with the language of the task.

Common Sources of Cognitive Load for ELLs in Math

ELLs often have to process:

• Unfamiliar vocabulary (social and academic)

• Multiple meanings for common words (table, times, product, etc.)

• Complex sentence structures

• Extraneous information that doesn't directly relate to the math

• Instructions and the problem itself

  
  

All of this cognitive processing must occur before students can even begin solving the problem. Layered on top of that is the pressure to respond quickly, often in front of peers. The result? Students may understand the math and know the correct approach, but they are unable to access that knowledge in the moment.

Strategies to Reduce Cognitive Load for ELLs Without Lowering Rigor

Once we recognize how much language students are carrying into every class and every problem, the next question becomes: what can we actually do about it? Reducing cognitive load doesn’t mean lowering expectations or avoiding rigorous tasks. It means removing unnecessary barriers so students can use their mental energy on the math we actually want them to learn.

One of the most effective ways to do this is to simplify the language pathway to the math.

Start With Access: Simplifying Language in Math Instruction

The most common strategy I use in my classroom is rewriting problems using clear, student-friendly language. Once students have begun to understand questions that are more accessible to them, I then begin teaching them how to do that work themselves. This skill is essential to students as standardized test questions are generally not written in student-friendly language, requiring our students to be able to decode their meaning.

This fits naturally into the structured routines many of us already use. This kind of language work is not an extra step; it’s the foundation that makes every step that follows more effective. When students are taught how to make sense of the question first, strategies and problem-solving routines actually have a place to land.

In my classroom, I use the RULES framework. I teach students to read the question, understand what the question is asking, look for a strategy, evaluate to find an answer, and stop and check their work. This helps students slow down and manage the amount of information they are processing at once. When students simplify a problem, they are engaging in the Read and Understand steps, even if we don't name them yet.

Step 1: Write Problems Using Clear, Comprehensible Language

Start by examining the language in your tasks. Ask yourself:

• What vocabulary is essential for understanding the math?

• What wording is unnecessary or overly complex?

• Would this sentence be hard to hold in working memory?

  
  

Example

Original problem:

Determine the total number of tiles required to cover a rectangular patio with dimensions of 6 feet by 8 feet.

Simplified version:

A patio is 6 feet long and 8 feet wide. How many square feet does it cover?

The mathematical demand hasn’t changed. Students are still finding the area. What has changed is the amount of language they must decode before they can begin.

Step 2: Teach Students How to Simplify Complex Problems

Providing simplified problems helps in the moment, but teaching students how to simplify problems helps to build long-term access. This is where explicit modeling matters. I tell students that before solving or trying to determine what to do, we want to make the problem easier for our brains to understand. Then we practice doing that together and modeling our thoughts.

A simple routine might look like this:

1. Read the problem aloud or silently

2. Underline or highlight what the question is asking

3. Cross out or ignore extra information

4. Rewrite and reread the question in simpler language

   
   

This routine helps students work through the first two steps of RULES: Read and Understand. These steps are just as important as actually solving the math, if not more important, as they are essential to promoting understanding. Understanding the question is the first major hurdle for students in their quest to solve each problem.

Step 3: Practice the Analysis, Not Just the Answer

To truly reduce the cognitive load, students need low-pressure opportunities that give them time to analyze the language, simplify the problem, AND have time to answer. Over time, this allows them to build the language skills needed and avoids creating a system where they feel pressured to produce immediate results.

Some simple ways to do this include:

• Exit tickets where students only rewrite the question or explain what it means

• Partner work focused on identifying key information

• Extended processing time, encouraging students to wait and think

• Modeling of the analysis included discussing the internal thought process

  
  

Once the analysis becomes routine, students are able to approach new problems with confidence. They can apply their new skills to new scenarios, become less hesitant, and ultimately be successful in the math classroom.

The Importance of Language in Math

To your students, every word, every sentence, and every instruction matters. The way a problem is written can be the difference between feeling capable and feeling stuck before they even begin. When we take the time to reduce unnecessary language, we aren't making math easier; we're making it accessible.

When we build students' skills in analyzing questions, we aren't taking away from the content; we are giving them the skills necessary to access it. These small choices signal to students that their thinking matters, that they are capable of doing rigorous mathematics, and that their teacher will be there to help and support them every step of the way.

For math teachers working with English Language Learners, reducing cognitive load is often the difference between a student who shuts down and a student who can access rigorous mathematics.

Conclusion: Empowering ELLs in Math Class

In conclusion, we must remember that our goal is to empower our students. By simplifying language and reducing cognitive load, we create an environment where all students can thrive. Every effort we make to clarify instructions and support understanding can lead to significant gains in student confidence and success.

So, let's commit to making our math classrooms a place where every student feels capable and ready to tackle the challenges ahead. Together, we can unlock understanding and foster a love for math that lasts a lifetime.