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

Built for AP® teachers in history, government, statistics, and English.

The classroom has changed. The need for real learning has not.

AI has given students new ways to shortcut the hard work that leads to real thinking.

Introducing Coach.

Coach is a learning tool that challenges students to keep practicing, explaining, writing, and revising.

Teachers see more than a final submission. They see the student thinking that led to it.

Teal, coral, and cream school lockers with a sign reading Education Changes the World

Real learning requires real thinking.

How Coach works

AI can do the assignment. It cannot do the learning.

Interpreting the question. Choosing an approach. Making sense of evidence. Explaining an idea. Revising after feedback.

These are not steps to get through. They are how students learn.

AI makes it easy to skip that work and still produce a polished answer.

Students need feedback, structure, and another chance to try. What they do not need is a tool that lets them skip the thinking and miss the learning.

For teachers

See student progress, not just the final answer.

Submitted work does not tell the whole story.

Coach helps teachers see the work without claiming to know authorship.

Coach shows teachers what students tried, how they responded to feedback, where errors repeat, and what changed when they revised.

The goal is not to catch students after the fact or replace teacher judgment. It is to give teachers a clearer view of the work, so they can go about the business of being teachers.

CoachSample
Jordan KimHistory written response
Revision record
First attempt

Claim named the policy but did not explain its effect.

Feedback considered

Added a specific piece of evidence and explained why it supports the claim.

Revision saved

Connected the evidence to the claim in a clearer explanation.

Attempt savedCoach feedback viewedRevision saved

Practice and writing

Built for AP® teachers in history, government, statistics, and English.

Multiple-choice practice. Written responses. Evidence. Explanation. Revision.

Coach brings those pieces together across history, government, statistics, and English, with support built around the knowledge and thinking those courses demand.

See what learning looks like inside Coach.

Product preview

Take the tour
SampleSamira Okafor Statistics practice
Named the residual pattern, then explained why it weakens a linear model.
AttemptFeedbackRetry

Practice explanation

SampleDiego Alvarez History document evidence
Connected a specific document detail to the claim and explained why it matters.
ClaimDocument detailReasoning

Coach feedback considered

SamplePriya Shah English writing revision
Refined the claim and carried the reasoning into the revised paragraph.
Draft 1FeedbackRevision

Revision saved

Guided demo

Step inside Coach.

Explore a sample classroom, see the teacher dashboard, and follow the work from student attempt to teacher insight.

The demo uses illustrative records, not a live classroom.

See Coach in action
Coachteacher dashboardRead-only teacher demo
Sample history classIllustrative sample class
Avery JohnsonRevision saved

Added a document detail and linked it to the claim.

Taylor NguyenFeedback viewed

No revision saved yet

Zoe MartinezAttempt 2 saved

Evidence named; explanation unchanged.

Illustrative sample dataNo real student informationIllustrative experience, still being validated

A better use of technology

The answer is not less technology. It is better technology built around learning.

Give students a place to do the hard thinking. Give teachers insights that help them teach.

Read Mark's Musings