path of totality
The path (up to about 270 km wide) that the Moon’s shadow traces on the Earth during a total solar eclipseA solar eclipse seen from within the Moon's umbra. The Moon appears to completely block the Sun's photosphere. More.
Resources for Teachers
WARNING
WARNING. Never look directly at the bright surface of the Sun without suitable eye protection as permanent eye damage may result. This applies at any time and especially during the partial phases of a solar eclipse. Refer to “How to observe the Sun safely”.