Foundational Cognitive Development in Math Learning
From the Why math is easy for adults not for kids curriculum
Foundational Cognitive Development in Math Learning
TL;DR
Adults often find math easier than kids because their brains have already developed crucial cognitive abilities like abstract thinking, sustained attention, and working memory. These developed skills allow adults to grasp mathematical concepts more deeply and connect them to real-world understanding. For kids, these foundational skills are still forming, making abstract math inherently more challenging.
1. The Mental Model
Think of your brain like a construction site. Kids are still building the basic structures (foundational cognitive skills), while adults have a largely completed building, ready to furnish and use for complex tasks. This completed structure makes learning new, abstract things like higher math much more efficient for adults.
2. The Core Material
When we talk about foundational cognitive development, we're focusing on the mental tools that make learning math possible. For kids, these tools are still developing, making math (especially abstract math) a harder climb. For adults, these tools are generally well-honed, providing a significant advantage.
2.1 Abstract Thinking

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Kids: Young children are very concrete thinkers. They understand what they can see, touch, or directly experience. Numbers are often linked to counting specific objects. The idea of "five" without five apples is hard.
Adults: You can easily think about "five" as a quantity, a concept, or even a symbol, separate from any physical objects. You can manipulate numbers in your head without needing to visualize them. This ability to work with concepts that aren't physically present is abstract thinking.
2.2 Working Memory

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Kids: A child's working memory (the mental "scratchpad" where you hold information while you're actively using it) is quite small. They can only juggle a few pieces of information at once. This makes multi-step problems, or even remembering what "carry the one" means while adding, very difficult.
Adults: Your working memory is much larger and more efficient. You can hold several numbers, rules, and intermediate results in mind simultaneously, which is essential for complex calculations, algebra, or problem-solving.
2.3 Sustained Attention & Impulse Control

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Kids: Focusing on a single, non-stimulating task for an extended period is tough for kids. Their attention wanders, and they're more prone to distraction. Impulse control is also developing, meaning they might rush through problems or make careless errors.
Adults: You've developed the ability to focus for longer periods on tasks you might not find inherently exciting. You can also inhibit impulses, allowing you to double-check your work or stick with a challenging problem.
2.4 Problem-Solving & Pattern Recognition

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Kids: Young children often rely on trial and error or very simple strategies. They struggle to see underlying patterns or generalize solutions from one problem to another.
Adults: You're skilled at breaking down complex problems into smaller, manageable steps. You can quickly identify patterns, apply known strategies, and adapt them to new situations, which is crucial for mathematical thinking.
Here's a simple diagram showing how these skills build up:
graph TD
A["Sensory Experience & Play (Early Childhood)"] --> B["Concrete Counting & Object Manipulation"]
B --> C["Developing Working Memory & Attention"]
C --> D["Basic Abstract Ideas (e.g., 'numberness')"]
D --> E["Sustained Attention & Impulse Control (Mid Childhood)"]
E --> F["Pattern Recognition & Simple Problem Solving"]
F --> G["Enhanced Working Memory & Abstract Thinking (Adolescence/Adulthood)"]
G --> H["Complex Mathematical Reasoning & Problem Solving"]
3. Worked Example
Imagine teaching a 6-year-old and an adult to solve: "If a shirt costs $15 and pants cost $20, how much do both cost together?"
For the 6-year-old:
You'd likely need physical objects (e.g., pretend money, blocks) or drawings. You'd count out 15 blocks, then 20 blocks, then physically combine and recount them. Their working memory might struggle to hold "15" and "20" while also understanding "add them" and "what's the total." Abstractly writing "$15 + $20" might not click without the concrete representation. Their attention might wander mid-count.
For the adult:
You'd instantly recognize this as an addition problem. Your abstract thinking lets you convert "shirt costs $15" into the number 15. Your working memory holds 15 and 20, and you mentally perform 15 + 20 = 35. You don't need physical objects. Your sustained attention keeps you focused until you get the answer.
4. Key Takeaways
- Adults have fully developed cognitive skills that make abstract math much more accessible.
- Abstract thinking allows adults to manipulate concepts like numbers without needing physical representations.
- A larger working memory helps adults juggle multiple pieces of information during problem-solving.
- Sustained attention and impulse control enable adults to focus longer and reduce errors.
- Adults are adept at recognizing patterns and breaking down complex math problems.
Common Mistakes to Avoid:
- Don't assume a child can 'just get' abstract concepts. They often need concrete examples.
- Don't mistake a child's struggle for lack of intelligence. It's often about developing cognitive tools.
- Don't rush kids through foundational steps. Solid grounding in concrete math builds later abstract ability.
- Don't compare a child's math ability directly to an adult's. Different developmental stages mean different capabilities.
5. Now Try It
Think about a common math concept like fractions (e.g., 1/2). Spend 15 minutes trying to explain it to an imaginary 7-year-old without using abstract symbols, only concrete examples and actions. Then, imagine explaining it to another adult using only the abstract symbols and concepts.
What to do:
1. Mentally outline how you'd explain "what is 1/2?" to a 7-year-old. What objects would you use? What words?
2. Mentally outline how you'd explain the same concept to another adult. How would your approach change?
3. Reflect on the differences in your approach.
What success looks like:
You'll clearly see how your approach changes based on the presumed cognitive development of your audience. You'll recognize that for the child, you heavily rely on concrete thinking and simpler working memory demands, while for the adult, you leverage abstract thinking and pattern recognition.
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