Indianapolis, IN
Joined March 2009
- Tweets9.2K
- Following728
- Followers2.1K
- Likes4.5K
Erica Posthuma retweeted
Have a 3D printer? Make some 3D printed models of various carbon allotropes! bit.ly/3DmodL
Erica Posthuma retweeted
This initial study outlines the effect on the colour of anthocyanin-containing solutions when mixed with caffeine. There is great potential for series of open-ended experiments for students to investigate. bit.ly/Caff23
Erica Posthuma retweeted
I'm trying to resign the nail lab that I do (iron nails & CuCl₂) that examines single replacement rxns & develop empirical formula to be more sustainable and less toxic. Any ideas? #iteachchem @ChemEdXpert
Erica Posthuma retweeted
It’s time for us to move to a 32-hour work week with no loss in pay. We can reduce the stress level in our country and allow Americans to enjoy a better quality of life.
Erica Posthuma retweeted
⚠️ Free resource alert ⚠️
Check out sustainable chemistry curriculums from Beyond Benign! ♻️
Thanks @Greg_A_Sloan for sharing green chem resources from @beyondbenign! #ACSSpring2023 #teachgreen #chemed #teachchem
Erica Posthuma retweeted
This empowering activity provides students the opportunity to drive their own lab experience. It allows students to perform research, execute lab techniques and identify an unknown substance. bit.ly/EWLab23 #iteachchem
Erica Posthuma retweeted
Whether you’re in the midst of the curriculum or you are all done, it’s helpful to think about how to review for the #APChem test in May. Here are some helpful ideas from @APchemisMe on @ChemEdX. Let us know what works for your course! chemedx.org/blog/ap-chemistr…
Erica Posthuma retweeted
Not sure why, but this is one of my favorite labs of the year! #modchem #iteachchem #chemchat @eposthuma @rkvallen @ACT2TX @aserkin @CummingsLinda @RyTriGuy @APchemisMe @SmithAPChem @AACTconnect
Erica Posthuma retweeted
As much as I hate, “I’m trying to see something,” I’m doing this poll because I’d like others to see something.
Teachers: has a student threatened to harm or kill you?
57%Yes, I’ve been threatened
38%No, never been threatened
5%I’ll explain in comments
3,019 votes • Final results Erica Posthuma retweeted
Good morning #chemtwitter @chemedx is working on some new resources for classroom teachers - follow our new account so you don't miss anything!
Erica Posthuma retweeted
Secondary chem Ts: What do you feel you excel at in preparing Ss to take college ed chemistry? What do you wish that profs could utilize better?
Brag about what you do well that you wish that high ed knew about.
#chemed #chemed2023 #iteachchem
Erica Posthuma retweeted
It took me 10 years of teaching calculus to **really** understand calculus. Many ideas in math took decades to understand. Understanding that **understanding** is a luxury item in learning mathematics is alien in K -12 math education.
Erica Posthuma retweeted
Please can we end the learning styles debate now please. I ban my trainee teachers from using the term. See Pashler et al.(2009) and Hussman & O’Laughlin (2019) if you need convincing.
Erica Posthuma retweeted
First: I’m pardoning all prior federal offenses of simple marijuana possession. There are thousands of people who were previously convicted of simple possession who may be denied employment, housing, or educational opportunities as a result. My pardon will remove this burden.
Erica Posthuma retweeted
Particles are here! You can customize them to fit your diagram. They can represent residue, bubbles (we have those too!), precipitate, molecules,... let's see what you create with them!
#chemed #chemtwitter #sciencetwitter #asechat
Erica Posthuma retweeted
We've added rubber tubing a while back - have you tried them yet? They're flexible and snap to things, making them a breeze to use. #chemed #chemtwitter #sciencetwitter #asechat