What I Learned Teaching AP Physics That Changed How I Write for Kids

The Ramp Problem

Here is something I see every year without fail.

I give an AP Physics class a conceptual question about a block sliding down a ramp. No numbers. No formula needed. What is happening to the energy, and why? Half the class immediately flips to the formula sheet. They scan it looking for something involving mass, acceleration, kinetic friction. The physical reality of the block on the ramp is irrelevant to them. They are looking for an equation that fits the shape of the problem.

Now ask a nine-year-old the same question, framed as a skateboard on a hill. No formula sheet. No prior instruction. What do you think is happening? A child who has been allowed to think will describe energy transfer and friction in plain language, accurately, without any algebraic crutch. The nine-year-old is doing physics. The sixteen-year-old is doing search-and-retrieval.

That gap is not natural. It is manufactured by a decade of science education that rewarded finding the right answer over understanding the right process.

The National Academies of Sciences, Engineering, and Medicine confirmed the pattern in 2024. 49% of chemistry majors with high algorithmic skills fail parallel conceptual questions. High grades in formula-based science do not transfer to conceptual understanding. They never did. The curriculum just never asked anyone to notice.

What AP Physics 1 Actually Tests

The College Board updated the AP Physics 1 framework for 2026. The shift is significant and worth understanding even if your child is eight years old.

The update moves the course away from algorithmic memorisation and toward three things. Deep conceptual evaluation, experimental design, and the creation of multiple representations. Free-body diagrams. Energy bar charts. Visual heuristics that require a student to construct a picture of a physical system before writing a single number. The exam is now explicitly testing the mental model, not the formula retrieval.

What the research says, confirmed by the College Board's own documentation, is that introducing these visual practices in elementary school prevents the cognitive dissonance that shows up at the advanced level. A child who has been drawing energy flow diagrams since age nine does not freeze when an AP exam asks them to represent a system visually. It is already how they think.

Steve Heimler, a prominent advanced physics educator, described the problem he sees consistently. Students buried in thousand-page textbooks who cannot believe they can actually learn this material. The textbook did not prepare them to think. It prepared them to find things in a textbook. Those are not the same skill.

Only 22% of US high school graduates are proficient in science by the NCLB and ESSA data from 2024. The exam changed. The pipeline feeding into it largely has not.

Why the Mental Model Breaks Down Before High School

Research into physics education is clear on one point that elementary curricula almost universally ignore. Mental models form independently of mathematical formalisms.

In practice this means a child does not need to understand algebra to build an accurate mental model of how gravity works. The model comes first. The algebra, when it arrives, gives the model precision. But if the algebra arrives before the model exists, the student has nowhere to put it. They memorise the formula in isolation and it sits there, disconnected from any physical understanding of what it represents.

The atom-as-solar-system error is the cleanest example. Children learn that electrons orbit the nucleus like planets orbit the sun. It is intuitive, it is visually clean, and it is wrong in a way that actively damages what comes next. Quantum mechanics requires unlearning it entirely. Every AP Physics teacher I know has had this conversation. The mental model was planted in the fifth grade. The unlearning happens at sixteen.

36% of fourth-grade students perform at or above proficient levels in science, per the 2024 NAEP report. 30% never or rarely engage in scientific inquiry activities at all. The elementary cognitive capacity is there. The curriculum is not meeting it.

The Statistics No One Talks About

18 minutes.

That is the average daily science instruction time for children in grades K through 3, per the National Survey of Science and Mathematics Education. They receive 89 minutes of ELA instruction in the same day. Nobody made a deliberate decision that reading matters more than understanding the physical world. It accumulated. Testing pressure, resource allocation, instructional minutes. All of it pushed science to the edge of the day.

What can you do with 18 minutes? A worksheet. A short video. A vocabulary exercise. There is no time for prediction, no time for observation, no time for a child to construct a mental model from something they actually watched happen.

That is where the gap starts. Not in high school physics. At age seven, in the 18-minute slot between reading and lunch.

The materials filling those 18 minutes are their own problem. Many contain early science misconceptions dressed as simplifications, planted so early that neither the child nor the parent notices until a high school teacher has to dismantle them.

What an 8-Year-Old Gets Right That a 16-Year-Old Gets Wrong

The research finding that stopped me in my tracks came from PMC in 2024. Younger children show cognitive advantages in probabilistic evaluation and causal detection when algebraic requirements are removed. The eight-year-old is often doing better physics than the sixteen-year-old, not despite their age, but because their mental model has not yet been replaced by a formula sheet.

That finding is counterintuitive enough to be worth sitting with for a moment. The child who has not been formally taught physics is reasoning about physical causation more accurately than the student who has been trained in physics formulas for four years. The training, when it goes wrong, is making things worse.

The Frontiers in Psychology study from 2026 put numbers on what happens when you give children aged 8 to 12 the right kind of challenge instead. After a structured coding and logic intervention, the effect size on decomposition tasks was 1.18. That is large. Pre-test computational thinking scores of 20.4 became post-test scores of 30.6. These were not exceptional children. They were ordinary primary-school students given work that actually matched their cognitive capacity.

Daniel Willingham, writing in the American Federation of Teachers journal in 2026, addressed the attention span debate directly. Children's ability to control attention has not been compromised, he found. They have simply become faster at identifying when they are bored. The behavioural disruption in a science class with worksheets is not attention deficit. It is a child recognising, accurately, that the cognitive floor is below them.

This is not an argument for acceleration. It is an argument against deceleration. Children are ready for real conceptual science between 8 and 12. The window is there. Most curricula do not use it.

What This Means for Science Books

I started writing the MEYE Science Series because of what I see in my AP classroom every May.

The students who are doing well are not the ones who read the most science encyclopaedias as children. They are the ones who had books, or adults, that took one physical phenomenon seriously and explained how it actually worked. One thing, completely. Not five hundred things at two sentences each.

Maryanne Wolf, a cognitive neuroscientist at UCLA, makes the point plainly. Deep reading strengthens the circuits in the brain tied to critical thinking, but only when the text demands it. A book that delivers a fact and moves on is not building those circuits. It is providing storage. Storage is not the same as understanding.

Understanding how AP students actually learn makes the implication clear. A child who has spent years reading books that go deep on one thing, that require visualisation, that do not flinch at giving the real mechanism, arrives at advanced physics with something no formula sheet can provide. A working internal model of how physical systems behave.

That is what the MEYE Science Series is built to give them. See the full MEYE Science Series for current and upcoming titles.

Try It: Conceptual Readiness Check

Seven scenarios. For each one, decide whether the response described builds a mental model or trains fact retrieval. Parents, you can do this with any science book your child currently owns. The results sort into three tiers.

Frequently Asked Questions