Pen detected spelling errors

A German inventor introduced a pen designed to vibrate every time a user spelled a misspell.

Inventor Falk Wolsky and his wife Mandy decided to create the pen Lernstift (ie 'Pen school' in German) after witnessing their son struggling to write.

Lernstift pen is said to be able to support students to learn words faster - (Photo: Lernstift)

The first prototype of the Lernstift high-tech pen is programmed to recognize specific movements that relate to each shape, and can detect spelling and grammatical errors.

The pen has two modes: calligraphy mode to detect morphological errors or writing that is clear or not, while the remaining mode seeks to find grammatical errors.

Once determined that the writer wrote wrongly or held the pen too tightly, Lernstift will respond by shaking, according to The Daily Telegraph.

The Wolsky inventor and wife, through newly established Lernstift, said their new device could help children learn to write faster and more accurately.

They also plan to install more Wi-Fi transmitters, allowing teachers to immediately send errors that students have just made for parents.