Lenses and Optics: Exploring Concave and Convex Lenses—4 In-Depth Labs w/ CER

Lenses and Optics: Exploring Concave and Convex Lenses—4 In-Depth Labs w/ CER
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7 MB|27 pages
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  1. In this lab students dig into convex lenses and see how they flip the image depending on how you hold them. It's a good lab for deepening skills and requires no setup, yay! If you're studying light and optics with your students, this is a quick and simple lab and could even be set up as a center or
  2. Three more labs to study convex and concave lenses. These labs require no setup and could be used in centers or stations. The directions are written directly to the students so you don't have to introduce them. These 3 labs will make a great addition to your study of light and optics. Each lab incl
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  1. Twenty four labs to study pinholes, concave and convex lenses, concave and convex mirrors, the human eye, and how telescopes are designed. Most of these labs require no setup and could be used in centers or stations. The directions are written directly to the students so you don't have to introduce
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In these labs students dig into lenses. In the first they see how convex lenses flip the image depending on how you hold them. In the next three labs they look at these lenses more in depth and in the final lab they see how lenses can be combined to make telescopes (or microscopes). They're good labs for deepening skills and requires little to no setup, yay! If you're studying light and optics with your students, these simple labs could even be set up as centers or stations.

The directions are written directly to the students so you don't have to introduce them. Kids will be intrigued by the phenomena and want to dig into the concepts. The first activity includes a one-page reading that can be used as a read aloud or student reading or teacher read-aloud. Reading includes questions and answers. All four labs include cards for Claim, Evidence, and Reasoning (CER) that can be used in a variety of ways. Each of the labs is complete in itself and builds upon concepts taught in the other labs.

Use this to learn and reinforce answers to questions such as:

  • How do objects look when viewed through a convex lens?
  • How do objects appear to change according to the position of the convex lens?
  • When does an image appear upright when viewed through a convex lens?
  • How do images appear different when viewed through convex vs. concave lenses?
  • What type of lens can flip an image vertically or horizontally?
  • What types of lenses are used in telescopes and why?

Once students try this activity, they can capture their observations using the included Lab Notes or probing questions included in the instructions. 

Concepts Addressed

  • When a convex lens is held near an object the image is always upright.
  • Convex lenses converge or focus light.
  • The image you see through a convex lens depends on its location relative to its focal point.
  • Both convex and concave lenses can change the size of an image.
  • Convex lenses can flip the image vertically and horizontally.
  • Concave lenses don’t flip images.

Answer Keys and Teacher Notes address most questions and issues that might arise in this study—you shouldn’t have to do any outside research unless you want to.

Materials Needed Convex and Concave Lenses, Whiteboard or Blackboard

Prep Needed Gather supplies

Teaching Time  Four 30 min sessions


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Terms of Use
Copyright © Carolyn Balch. All rights reserved by the author. This product is to be used by the original downloader only. Copying for more than one teacher, classroom, department, school, or school system is prohibited. This product may not be distributed or displayed digitally for public view. Failure to comply is a copyright infringement and a violation of the Digital Millennium Copyright Act (DMCA). Clipart and elements found in this PDF are copyrighted and cannot be extracted and used outside of this file without permission or license. Intended for classroom and personal use ONLY.

Total Pages
27 pages
Answer Key
Included
Teaching Duration
2 hours
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