Calc Steps

A calculator that shows its work.

Angle unit

Pick your course

Pick a course to see the right tools. Your guided steps change too.

Algebra mode. You get graphing and equation flows.

Proctor Mode for teachers

Proctor Mode is free for teachers. A teacher runs a session during a class test. Students join with a short code.

While a session runs the app watches its own page. When a student leaves the app page the app writes down the time. The teacher sees each leave and each return on a live roster.

This mode reports. It does not hold a phone in this app. It cannot stop a student from switching apps or picking up a second phone. It is a classroom tool for a teacher to judge. It is not an approval from any testing body.

Run a session

Pick what this test allows. Then start the session and share the code with your class.

Course modes allowed
Tools allowed

Join a session

This session is proctored. Your teacher can see when this app page is open and when it is not. Each leave and each return is recorded with a time and shown to your teacher. Your teacher also sees if this page stops reporting. Stay in the app until your teacher ends the session.

How far this build reaches. Served from the Calc Steps relay, teacher and student views connect across phones on the same network. Opened as plain files, views connect in tabs or windows of one browser on one device. Either way the watching works the same and the reach is stated here, on this card.

Calculator

Type a problem or tap the keys. Tap equals to see the answer.

Your answer will show here.

Recent answers

What can I type

Use + and - and * and / for basic math. Use ^ for powers. Use parentheses to group parts.

Use sin and cos and tan for trig. Use ln for natural log. Use log for base ten log. Use sqrt for square root.

Use ! after a number for factorial. Use pi and e for the well known constants.

Multiplication can be left out in places like 2pi or 3(4 + 1).

Graphing

Type a rule that uses x. The graph draws itself on the grid.

The middle lines cross at zero. Each grid step is one unit.

Statistics from a list

Type numbers with spaces or commas between them. Tap the button to see the summary.

Your summary will show here.

Unit conversions

Pick a group first. Then pick the starting unit and the target unit.

Your converted value will show here.

Money solvers

Compound interest

See how savings grow over time. The rate is a yearly percent.

Your ending amount will show here.

Loan payment

See the fixed monthly payment for a loan. The rate is a yearly percent.

Your monthly payment will show here.

Guided steps

Each flow asks for one piece at a time. It shows each step and tells why the step helps.

It ends with an answer and a check. The check uses your own numbers.