Showing posts with label Ocean. Show all posts
Showing posts with label Ocean. Show all posts

Friday, June 25, 2021

How Seashells Are Made - A Lesson for Beachcombers

If your summer plans, like ours, include going to the ocean, you may be interested in this video from Reactions about how seashells are made. In How Seashells Are Made viewers learn that seashells are made of 95% calcium carbonate and 5% protein and sugar. The video doesn't stop with just listing the components of seashells. By watching the video viewers can learn how calcite and aragonite are layered in seashells to create a hard shell.



Applications for Education
I've never been a "lay on the beach" kind of person. I'm the person you'll find wandering and looking at neat things that get washed up on shore. My daughters are the same way. If you have students that like to wander and collect seashells, use that curiosity as a segue into a science lesson about how seashells are made. This video is a great candidate for inclusion in an EDpuzzle lesson in which you add questions and your own clarifying remarks for students. Watch my EDpuzzle tutorial to learn how to add questions to an existing video.

Thursday, February 14, 2019

How Ocean Currents Work - And 24 Other Lessons About Oceans

How Do Ocean Currents Work? is a TED-Ed lesson that makes a fantastic addition to TED-Ed's list of lessons about oceans. The list now has 25 lessons covering a range of ocean-related topics including how waves are formed, the depths of oceans, and lessons about marine life.

In How Do Ocean Currents Work? viewers learn about the forces influencing surface and deep ocean currents. The lesson is told through the story of 28,000 rubber ducks drifting around the world.


I've watched this lesson a few times. The last time that I watched it I realized that the clay model featured in the video could be replicated in a fish tank or large dish pan. Having students make and modify models like the one in the video could be a good way for them to see and experiment with forces that influence the flow of water.

Thursday, June 27, 2013

TED-Ed Lesson - How Big Is the Ocean?

Anyone who has stood on a beach looking out on the ocean has probably wondered, how big is the ocean? The TED-Ed lesson How Big Is the Ocean explains some of the answers to that question by putting the size of the ocean into perspective compared with well-know landforms. The lesson is suitable for students in grades three through eight.