Learners build a telescope and give quantification of its magnification and field of view while making observations regarding images. In this telescope lesson, students use a simple lens to project a scene and examine various telescope...

Students construct a simple refracting telescope. They calculate the magnification.

Young scholars use magnifiers and telescopes to view things close up. In this magnifiers and telescopes lesson plan, students use the tools to identify things that are close and far away. Young scholars tell details of things they can...

Learners view objects of various sizes from several viewing distances to discover that their visual field is limited. They record what they see and compare their observations with classmates. They conduct more structured experiments.

High schoolers identify the different uses of lenses. In this physics instructional activity, students compare lenses with different magnifications. They record data and discuss results in class.

Students explain that there are limits to what the eye can see and that a magnifying glass can help extend those limits. They examine an object with the magnifying glass and draw the size and shape of what they see as accurately as they...

In this microscope worksheet, learners review how microscopes work and how early scientists figured out how microscopes could help them with their discoveries. This worksheet has 3 fill in the blank and 7 short answer questions.

Students project and measure the suns image using a refracting telescope.  In this sun's diameter lesson students calculate the magnification of the telescope and determine the diameter if the Sun. 

Students work in pairs to construct a simple stereoscope.

Students make observations. In this sensory skills instructional activity, students use their senses as well as tools that sharpen their senses to make observations regarding foods and other items.

For this planets worksheet, students read information about Uranus, Neptune, and Pluto and then complete 18 multiple choice, 4 true or false, and 2 fill in the blank questions.

This simple lesson plan outlines how to build refracting telescopes and calculate their magnification. Use the follow up lab questions to check for student understanding and view links to other NASA lesson plans.

This site from Georgia State University Physics Department gives a discussion of the manner in which light is refracted by refractive telescopes. Discusses the Galielean telescope and the astronomical telescope.