What is a creative and informative way to introduce the different types of galaxies there is to elementary students and what are some fun activities to do with galaxies?
I am impressed but a little surprised that you think elementary school students need to know about galaxies... I would have thought that things easily seen in the sky, and objects already explored in the solar system might be more appropriate and concrete for younger students.
To answer your question, though, you might try the Galaxy Sorting activity from 'The Universe at Your Fingertips' -- a collection of 133 classroom activities in astronomy published by the nonprofit Astronomical Society of the Pacific. This activity is free on the Web at: https://astrosociety.org/file_download/inline/3e7de3ff-cbbd-4a8c-aae1-36f4d6a927fa
The entire collection can be purchased at: https://myasp.astrosociety.org/product/DV122/the-universe-at-your-fingertips-20-dvd-rom
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