Reflecting Telescope
Reflecting telescope explained in an easy to understand way:

Imagine you're trying to see your reflection clearly in a spoon. Just like a spoon's concave surface gathers and focuses light to show your face more clearly, a reflecting telescope uses a concave mirror to collect and focus light from distant objects. In both cases, the curved surface (the spoon or the telescope mirror) captures scattered light and concentrates it to a point, allowing you to see the details more clearly.
Practice Version

Reflecting Telescope: A telescope that uses concave mirrors to reflect and focus light from distant objects. Reflecting telescope. A reflecting telescope is a device that uses mirrors to gather and focus light from stars and planets for viewing.