Topics created by JeffHolland

@JeffHolland What about an anatomically correct heart?

Here is the central body of the flower parts model. The idea with this one will be to have it come as separate parts that the students put together, so there is some active tactile learning going on while they learn the parts and what they do. Leaving 1/4 of the model open will allow us to show the ovaries inside the flower and make it easier to see everything (from the side) when it is assembled. What do you think?

The hydrogen bonding -- water crystallization -- snowflake formation model is complete! In one downloadable package there will be the complete sequence in a single model (shown below) and separate models for each stage. The one-page document on lesson plan ideas and NGSS standards still needs to be finalized, but this all be ready for you to try out in a few days. Send feedback, and remember to vote for next months model! Yours in STEM, The S.o.S. Team.

Protein Macromolecule -- if you need a protein macromolecule in your class, vote here. This could be used as a stand-alone model or alongside our our DNA macromolecule, DNAgo!

The butterfly life cycle is now available for purchase on the front page!

I mis-typed: the insect internal anatomy model was the winning teaching aid for August, not September.

Thanks for your patience, everyone! This one has been a challenge, but we have some new ideas we are trying that should make it possible to join polyhedrons at different angles. If it was easy, it would be boring, right?

@cgarber Our leads on human skeletons have all run dry. I was hoping to scan an actual skeleton, but am now pursuing other methods. Sorry that this one is lagging. We will ensure that it does happen, so thanks for your patience!

I need to jump right on this one. The geological fault simulator will henceforth be known as, Mr. Fawlty. You are welcome, patrons of the classics.

The free EAB Key hot off the printer went to Joe Ruhl! We are excited to have him as a part of this STEM community.