Croaky! A Frog Dissection

The last days of school brought our restlessness to science by considering what make animals tick… internally and anatomically speaking.

Home Science Tools has an awesome Intermediate Dissection Kit that gives several easily dissectible animals to complement lessons on vertebrates and invertebrates, anatomy and physiology, or just good ole’ fashioned curiosity to our natural world. The kit also comes with dissection tools, a dissection tray, and student-friendly manuals for each animal. You’ll need to purchase your own gloves, and you can find some HERE – I always use latex-free.

The students were excited – at least most of them. A few didn’t want to have anything to do with it, which is bound to happen. Never fear, there are other options. I’ve used simulated models like the Elenco Simulated Frog Dissection Kit

We decided to work with the frog specimen first. I felt this would snag a lot of the drifting minds a lot more easily, so I went with my gut (no pun intended).

I always like to have my cordless LED microscope handy, because as you’ll see we like to look at the parts more closely.

A few other complementary materials to use before and after getting to know the frog are:

(Thank you for the support: Please note that most links on my blog are affiliate links at no extra cost to you. I do get a minuscule percentage if you purchase the items after clicking on the links.)

Here’s our dissection in photos. Needless to say, I feel proud to admit that this dissection turned one fearful student into a true-believer of just how awesome zoology is!

My drawer stash of parts of the frog cards in my Zoology cabinet.
The sweet little guy who donated his body to science. I always have the students thank the animal’s spirit (if they want).
Examining the external anatomy first. The manual also has good descriptions and factoids.
Setting him up, pinning him down, and preparing to make the first incision.
Following the manual, we make our first smooth cut. Almost immediately the heads of the other students move closer.
Incision into the muscle.

An immediate “whooaaaa…”

 

Skin and muscle moved to the side to see the organs.
Ours was obviously a female… here are some eggs.
I don’t want to give everything away, but the kids were truly fascinated. They were able to locate all of the organs as described and pictured in the frog dissection manual.
The stomach, which a responsible student also carefully dissected.
The heart and liver – always pretty obvious. Finding the heart is most often a pretty big deal to most of the students.
We collected a few organs, set them in our small petri dishes so that we can get a closer look. Top: deflated lung, the heart cut in two (so we could see the inside). Left: eggs. Right: the eye.
Setting the lungs up onto the stage of our microscope. I LOVE the cordless version because it’s so much easier to move around. Down with cords!

The lungs at 40x was just SO cool.
The eye at 10x… looks a lot like a lid.
And then the detail at 40x. I love hearing the reactions of kids of ANY age when they look at stuff under the microscope.

Stay tuned for more posts on our Intermediate Dissection Kit!




About Miranda

* Pisces. Eclectic. Indigo. Mother. Wife. Teacher. Herbalist. Scientist. Fantasy. Outdoors. Ocean. Crafty. Dreamer. * Found out more in the About section.

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