Taught HS Chemistry and Physics 34 years in Frederick County, Md. 25 years AP Chem. PAEMST 1991, NBCT 2001, 2011 Now chem ed specialist for technology at Vernier Science Educationhttps://bsky.app/profile/nhisim.bsky.socialhttps://bsky.app/profile/nhisim.bsky.social/post/3mq5yqsazts25Working with some APSI Chemistry teachers today on BTB equilbrium. A nice, green replacement for iron(II) thiocyanate. Got an amazingly low %Error! #IteachChem08 Jul 2026 20:51 +0000at://did:plc:f2jb5k7hmvf7ev4vofidh6oo/app.bsky.feed.post/3mq5yqsazts25https://bsky.app/profile/nhisim.bsky.social/post/3mp7w6ux2as2tGoing to do a 4th of July related webinar using a couple of color related activities. I would love to see you there. #iteachchem https://us06web.zoom.us/webinar/register/WN_XlJZFe4xQ4O3NF0Q8aFHuQ#/registration26 Jun 2026 21:46 +0000at://did:plc:f2jb5k7hmvf7ev4vofidh6oo/app.bsky.feed.post/3mp7w6ux2as2thttps://bsky.app/profile/nhisim.bsky.social/post/3mlcfwebybs2vI'm working on a set of quick videos to show how to do things with the Vernier Science Ed Analysis apps. Here's an example. Let me know if you'd like to see more. https://drive.google.com/file/d/1TjAYJLm9yalT00FPGyGUsvxBTSwkFtLT/view?usp=sharing #iteachchem07 May 2026 23:52 +0000at://did:plc:f2jb5k7hmvf7ev4vofidh6oo/app.bsky.feed.post/3mlcfwebybs2vhttps://bsky.app/profile/nhisim.bsky.social/post/3mjjyzq2eas2lEver think about working at Vernier? We need another chemist. vernier.bamboohr.com/careers/3. #iTeachChem https://vernier.bamboohr.com/careers/315 Apr 2026 13:32 +0000at://did:plc:f2jb5k7hmvf7ev4vofidh6oo/app.bsky.feed.post/3mjjyzq2eas2lhttps://bsky.app/profile/nhisim.bsky.social/post/3mhvrswia322cAnyone going to NSTA in Anaheim? Vernier will be there. I'm doing 5 workshops. We're in booth 301. My workshops are in room 207C. Forensics, Food, Sports Drink (with a twist), and more. Hope to see you there. @nstaofficial.bsky.social25 Mar 2026 19:04 +0000at://did:plc:f2jb5k7hmvf7ev4vofidh6oo/app.bsky.feed.post/3mhvrswia322chttps://bsky.app/profile/nhisim.bsky.social/post/3merhoktox22uAn alternative to teaching Chemical Equilibrium using Vernier Science Education technology. Meet with Melissa, Dylan and me to go over how to do this in a "green chemistry" way using simple BTB indicator. https://us06web.zoom.us/webinar/register/WN_wVfku-STRCeIkpJxmzU-VA#/registration @iteachchem.bsky.social13 Feb 2026 21:37 +0000at://did:plc:f2jb5k7hmvf7ev4vofidh6oo/app.bsky.feed.post/3merhoktox22uhttps://bsky.app/profile/nhisim.bsky.social/post/3mdlh2k6ksc2pGetting ready for our Vernier Science Education webinar this afternoon. Thought I'd wear an appropriate t-shirt. Did you know this stuff is dangerous‽ We are looking at simple activities for winter classes. I'd love to see you there. https://us06web.zoom.us/webinar/register/WN_jO69cREVSp20marw6mUrkw#/registration29 Jan 2026 18:45 +0000at://did:plc:f2jb5k7hmvf7ev4vofidh6oo/app.bsky.feed.post/3mdlh2k6ksc2phttps://bsky.app/profile/nhisim.bsky.social/post/3mcdj43itqs24My first webinar of 2026. I'll be working with a Trendsetter. We will be doing some things around Winter. Hope to see you there! #Vernier https://us06web.zoom.us/webinar/register/WN_jO69cREVSp20marw6mUrkw#/registration13 Jan 2026 21:35 +0000at://did:plc:f2jb5k7hmvf7ev4vofidh6oo/app.bsky.feed.post/3mcdj43itqs24https://bsky.app/profile/nhisim.bsky.social/post/3ly3usezeys2uWhatever happened to t-shirt Friday? Here's a nod to my Physics teacher friends. Help me with the tags please.05 Sep 2025 14:31 +0000at://did:plc:f2jb5k7hmvf7ev4vofidh6oo/app.bsky.feed.post/3ly3usezeys2uhttps://bsky.app/profile/nhisim.bsky.social/post/3lxwrjunsuk25Do you teach Beer’s Law or AP Chem Exp 1 Sports Drink. Here’s a new twist that Melissa and I will be doing next week. Free files and even a give away. Hope to see you there. https://inspire.vernier.com/sustainable-spectroscopy-analyzing-sports-drinks-with-beers-law-9-9-2025?_gl=1*1mvvn9i*_gcl_au*MTMwMjA0NzAyNC4xNzQ5NTg0OTY403 Sep 2025 13:49 +0000at://did:plc:f2jb5k7hmvf7ev4vofidh6oo/app.bsky.feed.post/3lxwrjunsuk25https://bsky.app/profile/nhisim.bsky.social/post/3lusl2fswsc23I'm doing a back to school virtual session on August 8th with one of our Vernier Trendsetters on August 5th. I'd love to see you there. tinyurl.com/VernierBTS202525 Jul 2025 17:27 +0000at://did:plc:f2jb5k7hmvf7ev4vofidh6oo/app.bsky.feed.post/3lusl2fswsc23https://bsky.app/profile/nhisim.bsky.social/post/3lunmg2ljns2k@lindacummings.bsky.social Thanks for the t shirt!23 Jul 2025 18:08 +0000at://did:plc:f2jb5k7hmvf7ev4vofidh6oo/app.bsky.feed.post/3lunmg2ljns2khttps://bsky.app/profile/nhisim.bsky.social/post/3lunm6ertj22k@chemed2025co.bsky.social Thanks for a great conference. It was great catching up with all the chem peeps . Looking forward to BCCE2026 in Madison.23 Jul 2025 18:04 +0000at://did:plc:f2jb5k7hmvf7ev4vofidh6oo/app.bsky.feed.post/3lunm6ertj22khttps://bsky.app/profile/nhisim.bsky.social/post/3lrix7l4fmc2tWe have a free webinar planned for 7/1. A way to use forensics to teach synthesis rxns and change in pH. https://inspire.vernier.com/forensic-chemistry-05-01-2025?_gl=1*mrnv4x*_gcl_au*ODY1NjA1MTE0LjE3NDM2NzUwMjguMTU0NDgyODg1Mi4xNzQ5MjMwMTQ1LjE3NDkyMzAxNzg. #ITeachChem13 Jun 2025 17:22 +0000at://did:plc:f2jb5k7hmvf7ev4vofidh6oo/app.bsky.feed.post/3lrix7l4fmc2thttps://bsky.app/profile/nhisim.bsky.social/post/3lpp6d7wn7s2pGoing to attempt to do all four gas laws in a 1 hour Vernier webinar. Hope to see you there. https://inspire.vernier.com/four-gas-laws-one-sensor-05-22-25?_gl=1*1w4hmi0*_gcl_au*ODY1NjA1MTE0LjE3NDM2NzUwMjguNjA3MTc1MTk2LjE3NDQwNDg3ODcuMTc0NDA0ODc5NA..21 May 2025 17:55 +0000at://did:plc:f2jb5k7hmvf7ev4vofidh6oo/app.bsky.feed.post/3lpp6d7wn7s2phttps://bsky.app/profile/nhisim.bsky.social/post/3lomkpjahck2eDoing a little thermochem with the latest version of Graphical Analysis Pro. The Notes and Video really add a lot to the report. #iTeachChem07 May 2025 23:34 +0000at://did:plc:f2jb5k7hmvf7ev4vofidh6oo/app.bsky.feed.post/3lomkpjahck2ehttps://bsky.app/profile/nhisim.bsky.social/post/3ll74tjuqnc22Heading east for the NSTA conference. #iteachchem25 Mar 2025 11:05 +0000at://did:plc:f2jb5k7hmvf7ev4vofidh6oo/app.bsky.feed.post/3ll74tjuqnc22https://bsky.app/profile/nhisim.bsky.social/post/3lko4tqxuhs2hWorking on my Vernier workshop slide decks from NSTA in Phily next week. We will analyze Secret Messages, Acids, Bases, Green Chem and many more. Hope to see some of you there. #iTeachChem18 Mar 2025 16:50 +0000at://did:plc:f2jb5k7hmvf7ev4vofidh6oo/app.bsky.feed.post/3lko4tqxuhs2hhttps://bsky.app/profile/nhisim.bsky.social/post/3lkdpai34qs2aHappy π Day on this #nerdytshirtfriday!14 Mar 2025 13:20 +0000at://did:plc:f2jb5k7hmvf7ev4vofidh6oo/app.bsky.feed.post/3lkdpai34qs2ahttps://bsky.app/profile/nhisim.bsky.social/post/3lkbdunln6c2xOk. Two weeks until the Vernier workshops in Philadelphia. I'm doing 5 chem ones including in called Fluorescence Files: Decoding Forensic Clues with Spectroscopy. Hope to see some BlueSkyers there! #ITeachChem13 Mar 2025 14:51 +0000at://did:plc:f2jb5k7hmvf7ev4vofidh6oo/app.bsky.feed.post/3lkbdunln6c2xhttps://bsky.app/profile/nhisim.bsky.social/post/3lihkqm6l3k2oMelissa and I are doing a Vernier Science Education webinar on Thursday afternoon. Would love to see you there. https://inspire.vernier.com/college-chemistry-02-20-25 #iteachchem18 Feb 2025 15:20 +0000at://did:plc:f2jb5k7hmvf7ev4vofidh6oo/app.bsky.feed.post/3lihkqm6l3k2ohttps://bsky.app/profile/nhisim.bsky.social/post/3lh2igptlqk2uWow. Vernier Science Education just released version 6.1 of Graphical Analysis. I used the new Remote Logging feature to measure the temperature in the sauna at my club this morning. #iteachchem31 Jan 2025 17:09 +0000at://did:plc:f2jb5k7hmvf7ev4vofidh6oo/app.bsky.feed.post/3lh2igptlqk2uhttps://bsky.app/profile/nhisim.bsky.social/post/3lgqrm4j3gk22#IteachchemI just remembered I'm doing an Vernier webinar on Crime Scene Chemistry using a kinetics experiment Thursday. Here's the registration link. Hope to see you there. https://inspire.vernier.com/crime-scene-chemistry-01-30-2527 Jan 2025 20:26 +0000at://did:plc:f2jb5k7hmvf7ev4vofidh6oo/app.bsky.feed.post/3lgqrm4j3gk22https://bsky.app/profile/nhisim.bsky.social/post/3lfnspxa4jk2gLots of requests for a kinetics webinar so we're doing blue dye kinetics from our Forensic Chem Experiments lab manual. This time using SpectroVis spectrophotometer. Hope to see you there. https://inspire.vernier.com/crime-scene-chemistry-01-30-2513 Jan 2025 22:43 +0000at://did:plc:f2jb5k7hmvf7ev4vofidh6oo/app.bsky.feed.post/3lfnspxa4jk2g