Desmos Calculator
Use this like the AP exam calculator.
Tip: drag the drawer edge or resize your window if you want more room.
Stats presets
One-click starter setups for common AP Stats calculator tasks.
Mode
Iframe
If these buttons are disabled, the app is in iframe mode. They will work automatically once the API loads.

Philosophy

We built this platform around a simple idea: if the student did not do the thinking, no learning happened.

Students have more information at their fingertips than any generation before them. The problem is that they also have tools that can bypass thinking entirely. And when that happens, the learning stops.

Everything in Coach is built to keep the real work with the student. AI helps them reason, revise, and improve. It does not hand them answers.

If a student did not do the thinking, no learning happened.

Students walking to class
Core beliefs

Seven principles behind the platform

These shape what we build, what we choose not to build, and how we think about AI in the classroom.

1
Thinking cannot be outsourced

AI can assist learning, but the real work has to stay with the student. Reasoning, interpreting, making judgments. Those aren't things to hand off. If a student does not do the thinking, no learning happens.

2
Struggle is part of learning

Understanding forms through difficulty, not around it. The productive struggle that builds real learning is not a problem to solve away. AI should protect it, not eliminate it.

3
Correctness is not understanding

A right answer without reasoning is not evidence of learning. The platform looks deeper than scores. It tracks how students think, not just whether they got it right.

4
AI makes you more informed, not more automated

You are still the decision-maker. AI gives you a clearer picture of what's happening in your classroom. Which students need attention, which skills need reteaching, where growth is real.

5
Confidence comes from doing the work

Students need to trust their own ability to think through hard problems. That trust only comes from actually doing it, not from watching AI do it for them.

6
Learning happens in loops, not lines

Real understanding comes from attempt, feedback, revision, and retry. The entire platform is built around that cycle.

7
We are preparing minds, not filling seats

What lasts is not the content students memorize. It is the ability to reason, communicate clearly, think ethically, and stay curious.

Learning science

Learning that lasts

You already know this from your classroom: students remember what they had to work for. The research backs it up: understanding sticks when students practice recall, space their work over time, and generate their own thinking instead of absorbing someone else's.

In an AI world, the temptation to skip the hard part is constant. Coach resists that. The platform preserves real effort and uses AI to support the kind of practice that builds lasting understanding, not to bypass it.

Student studying in a learning environment
The learning cycle

Everything connects back to this loop.

Attempt Feedback Revision Retry Mastery

Every part of the platform connects back to this rhythm. The learning cycle isn't just a theory. It's how the software actually works.