Justin Good

High School Chemistry Teacher - Cincinnati Sports Fan - Go Reds! ⚾️

[Justin Good @JustinGood]

That’s a Rap! RAPTORS WIN!!! #TeachersInTheBleachers

[Justin Good @JustinGood]

Proud of the Anderson Raptors football team for a great season. Thanks for all of the excitement you brought to our school this year! We had a lot of fun following you! Go Raps!

[Kristen Fouss @Fouss]

It was a great first half! Keep it up Raps! @AndersonRaptors @AHSRaptorsAD @JustinGood

[Justin Good @JustinGood]

The 2025 Periodic Table of Pumpkins! Happy Halloween from AHS Chemistry! 🎃🎃🎃

[Justin Good @JustinGood]

Periodically, we’re lucky enough to have Halloween land on a Friday. The AHS Periodic Table of Pumpkins display will be glowing along Forest Rd tomorrow by 6 AM! Check it out! 🎃 @AndersonRaptors

[Trevor Packer @AP_Trevor]

The 2025 AP Chemistry Exam scores:
5: 17%; 4: 29%; 3: 32%; 2: 16%; 1: 6%

As a reminder, these data only include the results of the AP Chemistry exam taken on the standard testing date, Tuesday, May 6.

Multiple-Choice Questions

This year, the mean number of correct MCQs was 36.99, compared to 35.00 last year, and 33.65 in 2023. On the make-up date this year, for which I have the multiple-choice data (but not yet the free-response data), the mean number of correct MCQs was 35.82. Equating data, which looks at each group’s performance on re-used MCQs, also confirms that this year’s group, on average, was stronger than prior years’ groups, demonstrating stronger chemistry content knowledge and skills, so scores increased.

Setting aside Atomic Structure and Properties (Unit 1), which a massive 34% of AP Chemistry students aced by answering every such question right, students demonstrated strongest mastery of Thermochemistry (Unit 6); 18% earned every point possible for that unit.

By far the most challenging unit for AP Chemistry students was Acids and Bases (Unit 8); 7% of students earned every point possible for this unit, and 6% of students, generally those who are receiving 1s, were unable to answer any question about this unit correctly. So this is a good unit for further focus as next year’s AP Chemistry students and teachers seek to extend AP Chem’s super impressive, multi-year trend of stronger content and skill mastery.

Another rave for the AP Chemistry community: they have pulled off this year’s significant increase in student performance while also expanding this very challenging course to 18,000 more students, overtaking AP Economics to be the subject that has provided the most additional students with access to the learning environments of their classrooms. I hear and share concerns of school administrators rushing AP Chemistry teachers by cutting labs or not providing adequate instructional time, so there are certainly exceptions to the positive trend in performance over time, but it’s good to see that in aggregate, performance is improving alongside increased opportunities.

Free-Response Questions
https://t.co/9bSFBxvgCB

Question 7, the Glycolate question, is psychometrically pristine, the most statistically “perfect” question I’ve yet seen on this year’s exams, which means that each of the 4 points is significantly different in difficulty from every other point, so that the measurement value of the question is high, working well to differentiate between students who should receive 5s, 4s, and 3s. Students who can answer every part of this question are typically receiving an AP 5 for their overall work on the exam; students who can answer all but one part of the question are generally receiving an AP 4; and students who can answer 1-2 parts of the question are generally receiving AP 3s. Students unable to answer any part of this question correctly are typically receiving AP 1s and 2s.

The highest performance on this year’s free-response questions was on Q4, the Methanol and Formaldehyde question. 22% of students earned all 4 points on it.

The most challenging of all this year’s AP Chemistry free-response questions was Q6, the Zn and AI Galvanic Cell question, which identified the most advanced students in the course, generally helping to identify which would receive AP 4s and which would receive AP 5s. 5% of students earned all 4 points on it.

All subjects’ AP score distributions for 2025 will be posted here when available: https://t.co/72wX2xn52R

[Justin Good @JustinGood]

@Fouss Thanks, Kristen!

[Justin Good @JustinGood]

@RaptorReporters @AndersonRaptors They were such a big help! What an awesome, talented group!

[Justin Good @JustinGood]

Congrats to the Anderson Raptors football team on an amazing run! A season to be proud of! #WorkWins

[Justin Good @JustinGood]

Go Raptors!!!

[WLWT @WLWT]

Anderson High School students create 'Periodic Table of Pumpkins' for Halloween | Click on the image to read the full story https://t.co/TUxGJsrcX2

[Justin Good @JustinGood]

Ten years strong of the AHS Periodic Table of Pumpkins! Happy Halloween from @AndersonRaptors Chemistry! 🎃 @AmerChemSociety

[Justin Good @JustinGood]

Year 10 of the @AndersonRaptors Periodic Table of Pumpkins is set for Thursday, October 31st! Pumpkins will be lit along Forest Rd beginning at 6AM! 🎃🎃🎃 #Chemistry

[Justin Good @JustinGood]

Tie Dye Day in AHS Chem!

[Justin Good @JustinGood]

Congrats to The Open Cases on winning the AHS Battle of the Bands! Thanks to all of the talented student bands and solo artists for making this year’s competition a huge success!

[Justin Good @JustinGood]

@JoeyVotto Roger Maris

[Justin Good @JustinGood]

@Mr_E_MusicBRES @AndersonRaptors @dlunn @grangedawg @ellamarie62 I may not have the most vocal talent, but I can bring the enthusiasm haha! Hope you’re doing well!

[Justin Good @JustinGood]

It was a fun Friday of silvering bottles around the Chemistree at AHS!

[Justin Good @JustinGood]

Huge shoutout and thank you to the 30+ students who met up at 4:30 this morning to create the pumpkin display! Great crew!!!

[Justin Good @JustinGood]

The Periodic Table of Pumpkins made its yearly return as AHS Chemistry students enjoyed a pre-Halloween celebration! 🎃 @AmerChemSociety @AndersonRaptors