tamatar.si
join the waitlist

hi, i'm tamatar!

a little more time to ripen.

Our notebook is coming soon. Join the waitlist for early access.

Just your email. We’ll only use it for early access and launch updates.

see what’s growing
for handwritten physics homework

a notebook
that grades you
back.

Write your work with a Pencil, like it’s paper. Circle your answer. tamatar’s red pen finds the first slip and helps just enough for you to fix it yourself.

that page is a replay of the real red pen. it loops.

how it works

three moves. no typing.

2

draw forces as arrows

Start every arrow on the object. tamatar checks which way each one points.

3

circle your answer

A circle means done. The red pen reads the whole page and finds the first slip.

the red pen

help you can ration.

Answer keys teach you to copy. tamatar starts with a single red mark and lets you decide how much more you need. Every step up the ladder gets a tally, so you always know how much was you.

problem 2, part B

μk = 0.2. Find the block’s acceleration.

ΣF = ma
ma = mg cos θ − f
↑ check the gravity part
a = 9.8 · 0.866 − 1.7
a ≈ 6.8 m/s²
how much help?hints used

The red pen starts with one mark and a few words. Most of the time that’s enough. Want more? Slide the nib.

the tamatar

meet your tamatar.

It lives in the corner of every page and watches you write. Right answers keep it fresh. Make the same mistake twice and it starts to rot. One right answer and it perks back up.

Go ahead, poke it. It doesn’t mind. Much.

poke me

a run of right answers. shiny.

the rules

what tamatar won't do.

hand you the answer first

The full solution is the last rung, and it costs a tally.

mark your whole page red

It finds the first slip. Fix that one, then check again.

make you type equations

If you can write it on paper, you can write it here.

cover up your work

Feedback goes around your ink, never on top of it.

good things take time to ripen.

Bring a ramp problem. Bring a Pencil. Bring a bit of patience for a dramatic vegetable.

works best on iPad with Apple Pencil. a mouse is fine too.