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Hannah Crowder

@mshcrowder.bsky.social
179 followers 238 following 260 posts

biology teacher - vizsla parent - podcast junkie - amateur science content creator - wannabe artist - Bay Area - she/her

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Hannah Crowder @mshcrowder.bsky.social · 18/09/2026
Yep. Blurry then clear then blurry. Turning it off and back on again seems to have fixed the issue.
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Hannah Crowder @mshcrowder.bsky.social · 25/08/2026
This has to be Alpha school…I wonder if the guides have to go through all the same mandated reporter and CPR trainings that actual teachers are required to do?
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Hannah Crowder @mshcrowder.bsky.social · 22/08/2026
Mine went up by almost 300% last year. We cancelled and have now paid out of pocket less than what 2 months would have cost for insurance.
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Hannah Crowder @mshcrowder.bsky.social · 16/07/2026
Random at the start of the year. New seats every week (3 class periods). Keep it random throughout the year but put a finger on the scale to adjust groups as needed. This allows me to sit kids in their IEP seating requirements, put the kid who forgets her glasses at the front, etc.
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Hannah Crowder @mshcrowder.bsky.social · 07/07/2026
I use this policy because it gives students time to learn at their own pace. All assignments can be redone until the summative assessment. Emphasis becomes on feedback and learning rather than earning points for the grade.
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Hannah Crowder @mshcrowder.bsky.social · 07/07/2026
My 9th grade students have very few assignments not completed by the summative assessment. Assignments must be meaningful to students. I’m okay giving a student an A if they earn it on the test even if they don’t complete a single assignment along the way. My tests are all application based.
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Hannah Crowder @mshcrowder.bsky.social · 07/07/2026
Summative assessments are the only things that count in the gradebook. Natural consequences for late work. Prelab not completed = no lab. Work not done in time for feedback then no feedback before the test. All formative work must be at a B- or higher to be eligible for a retake.
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Hannah Crowder @mshcrowder.bsky.social · 15/06/2026
Is it really a bad idea? We want students to be able to communicate professionally. We want them to understand that there are so many more jobs than doctor or lawyer. We want them to see that we are still trying to understand the world and there is much still to learn. Is there a better way?
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Hannah Crowder @mshcrowder.bsky.social · 15/06/2026
Do you ever get any that are good and that you are happy to respond to? If so, what makes these ones different?
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Hannah Crowder @mshcrowder.bsky.social · 08/05/2026
Not sure what info you are interested in but I love that lichens are indicators of atmospheric pollution due to their lack of roots. You can submit photos to iNaturalist for identification and also to help with lichen research. share.google/vtTaVjcd5yer...
share.google
iNaturalist
iNaturalist is a social network for naturalists! Record your observations of plants and animals, share them with friends and researchers, and learn about the natural world.
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Hannah Crowder @mshcrowder.bsky.social · 04/05/2026
As a teacher in the heart of the AI world, NO. Please NO. We do not want this. We do not need this. NO.
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Hannah Crowder @mshcrowder.bsky.social · 25/04/2026
This data would be interesting. My sister and I spend hours (2hr 13min in the last 5 days) on the phone with each other each week. Cellphone + headphones = long chats about nothing while going about our lives. We almost never video call.
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Hannah Crowder @mshcrowder.bsky.social · 24/04/2026
Are we ever going to talk about how @waymo.bsky.social cars are unpredictable for other drivers and thus we have to play defense anytime we drive in the Bay Area? Driverless cars aren’t ready for high traffic driving where communication with other drivers is key to keeping traffic moving safely.
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Hannah Crowder @mshcrowder.bsky.social · 21/04/2026
Done. Please have her share her results.
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Hannah Crowder @mshcrowder.bsky.social · 14/04/2026
I should probably make it clear that in their current states, the papers are so incredibly bad. But, we have a classroom mantra that goes “mistakes mean I am trying. I will use my mistake to grow.” In a couple weeks they will have papers that AP Bio students would be proud to have written.
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Hannah Crowder @mshcrowder.bsky.social · 14/04/2026
I had a 9th grader ask me if I use AI to give them feedback on their science papers. Another student responded for me with “why would she use AI to grade our papers? She actually wants to know what we write and help us get better.” Couldn’t have said it better myself.
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Hannah Crowder @mshcrowder.bsky.social · 10/04/2026
The Name of the Wind by Patrick Rothfuss. Annoyingly unfinished series but still worth it.
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Hannah Crowder @mshcrowder.bsky.social · 03/04/2026
It’s not my job to motivate students. It is my job to pose complex and interesting questions. Some students will find answering these questions and asking their own questions to be motivating. But in the end, the job wasn’t to motivate.
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Hannah Crowder @mshcrowder.bsky.social · 30/03/2026
The ones around me have a purely cosmetic pedal. Technically it is there but the kids never operate the bike by using it.
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Hannah Crowder @mshcrowder.bsky.social · 30/03/2026
The hill I will die on is that it isn’t an e-bike if you never have to pedal. Children are riding motorcycles without helmets or licenses and it’s unsafe for themselves and unsafe for everyone around them.
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Hannah Crowder @mshcrowder.bsky.social · 28/03/2026
Does anyone have a gift link?
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Hannah Crowder @mshcrowder.bsky.social · 24/03/2026
I audibly gasped.
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Reposted by Hannah Crowder
ouizyinvt.bsky.social @ouizyinvt.bsky.social · 07/03/2026
There is one word that explains how so many men can be in the Epstein files. So why is no one saying it? open.substack.com/pub/celestem...
open.substack.com
There is one word that explains how so many men can be in the Epstein files. So why is no one saying it?
We talk endlessly about the factors that make rape easier, but never about the factors that cause rape in the first place.
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Reposted by Hannah Crowder
Nature @nature.com · 20/02/2026
An innovative approach supercharges the innate immune system to provide a first line of defence against respiratory infections. go.nature.com/4qQncQx
go.nature.com
‘Universal vaccine’ protects mice against multiple pathogens
An innovative approach supercharges the innate immune system to provide a first line of defence against respiratory infections.
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Hannah Crowder @mshcrowder.bsky.social · 08/02/2026
If you know you know.
Hand holding a blueberry + banana smoothie in the foreground. Tv on in the background. The screen shows a dark haired man in a smoothie shop talking to a man in a yellow shirt with a black apron that says “Berry + Straw” who is standing behind the counter.
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Hannah Crowder @mshcrowder.bsky.social · 05/02/2026
Oh has it been stressful? I hadn’t noticed… What happens when my body battery hits zero? Is that even possible?
A screen shot from the Garmin app showing my “body battery” is at 17 out of 100. The text below reads:

Stressful day
Today has been stressful. On days like this, try to take relaxation breaks and make time for some physical activity. You can focus now on winding down before bedtime to help improve your sleep quality.
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Hannah Crowder @mshcrowder.bsky.social · 03/02/2026
The low winter sun is definitely a problem but if you cannot see you slow way down and use your hand to block the sun. While accidents do happen, many would be prevented if drivers would slow down and make sure they can see before they turn. A half an hour later and kids would be biking to school.
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Hannah Crowder @mshcrowder.bsky.social · 03/02/2026
It’s more crazy if you know this street. There is absolutely no reason to be going over 20mph here. This is in a neighborhood where most of the streets dead end. It isn’t that cars in this area don’t see you. The drivers don’t even look.
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Hannah Crowder @mshcrowder.bsky.social · 14/01/2026
Today I taught a 9th grader how to use a binder clip. Took five seconds. Not a big deal. But I am constantly surprised by the things we think are normal and yet children have never experienced them. Today it was a binder clip. Who knows what it will be tomorrow.
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Hannah Crowder @mshcrowder.bsky.social · 10/01/2026
I love these Cole Haan oxfords. They are comfy for teaching all day. www.colehaan.com/womens-2.zer...
colehaan.com
Women's 2.ZERØGRAND Stitchlite™ Wingtip Oxfords in Beige Or Khaki | Cole Haan
Shop Women's 2.ZERØGRAND Stitchlite™ Wingtip Oxfords in Beige Or Khaki at ColeHaan.com and see our entire collection of styles. Members receive free shipping. Always.
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Hannah Crowder @mshcrowder.bsky.social · 05/01/2026
For the last four years I have affirmatively asked my GP what vaccines I can get during my annual appointment. Never once was the HPV vaccine mentioned. Finally started the sequence last month when my gynecologist mentioned it is available until I turn 45. Give me all the shots. Hoe or otherwise.
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Hannah Crowder @mshcrowder.bsky.social · 03/01/2026
Post a photo of what you bake with them so we can all drool over it.
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Hannah Crowder @mshcrowder.bsky.social · 02/01/2026
You need cake baking strips. They wrap around the pan keeping the edges from cooking too fast while the center rises. The result is flat cakes right out of the oven. The layers in the cake below were not leveled but rather cooked with baking strips. shop.kingarthurbaking.com/items/cake-s...
Inside of a three layer cakes made with baking strips. The three chocolate layer are of equal sizes and level. The icing is biscoff cookie flavored.
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Hannah Crowder @mshcrowder.bsky.social · 29/12/2025
Did you enjoy the movie or read the book? Or both?
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Hannah Crowder @mshcrowder.bsky.social · 25/12/2025
Safeway or any big grocery store. They come in a box like this. One box lasts a very long time.
Box of Maldon sea salt. The box has a green boxed pattern with a white diamond shaped center portion with the Maldon name/logo.
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Hannah Crowder @mshcrowder.bsky.social · 24/12/2025
It’s my third batch this season. Somehow we keep running out of them. I’ve decided a serving size is 3 palm sized cookies…now that I think about it, that might be the problem. www.food.com/recipe/tarti...
food.com
Tartine's Soft Glazed Gingerbread Recipe - Food.com
by Liz Prueitt, Pastry Chef and Co-Owner, Tartine Bakery in San Francisco. Prep/cook times don't reflect recommended overnight refrigeration. Yield de
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Hannah Crowder @mshcrowder.bsky.social · 24/12/2025
Have you tired Maldon sea salt flakes? They are my favorite for adding a touch of salt at the end of baking.
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Hannah Crowder @mshcrowder.bsky.social · 24/12/2025
Require? No. But a light glaze makes them perfect.
Soft round gingerbread cookies arranged in a grid on a piece of parchment paper. The cookies are drying after having just been glazed with a thin mixture of water and powdered sugar.
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Hannah Crowder @mshcrowder.bsky.social · 17/12/2025
One more coloring sheet for the last of the biomolecules.
Coloring sheet for nucleic acids
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Hannah Crowder @mshcrowder.bsky.social · 17/12/2025
You aren’t more susceptible because you have had Covid before or because you were vaccinated. But you might be more susceptible in that some people’s trained immune system cells don’t “learn” quite as well as others and/or don’t stick around as long just waiting to go on offense. It’s just bad luck.
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Hannah Crowder @mshcrowder.bsky.social · 17/12/2025
All this to say. It sucks that you have Covid again. I’m sorry you aren’t feeling well and I hope you recover quickly.
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Hannah Crowder @mshcrowder.bsky.social · 17/12/2025
But immunity just means you have cells that recognize the virus and can mount an attack. It doesn’t mean you can mount the attack fast enough to fight off the virus before you get sick.
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Hannah Crowder @mshcrowder.bsky.social · 17/12/2025
Having Covid previously means your immune system cells have been trained to fight off the infection. But those cells seem not to stick around as long as the cells trained by the vaccine. The combo (vaccine and prior infection) means you should have some immunity.
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Hannah Crowder @mshcrowder.bsky.social · 17/12/2025
The virus has been mutating a lot since the vaccines were developed. While the vaccines are still effective, your immune system cells aren’t great at recognizing the virus so you can still end up getting sick. You should be better off than someone who is unvaccinated as their cells have no training.
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Hannah Crowder @mshcrowder.bsky.social · 17/12/2025
Additionally, the training immune system cells can die off over time, resulting in less and less immunity until there is no immunity at all. Booster shots are necessary once the trained cells start to die off.
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Hannah Crowder @mshcrowder.bsky.social · 17/12/2025
If the part of the spike protein that the vaccine trained your immune system for changes a little bit then your response time slows down. With enough changes to the spike protein, your immune system may not recognize it at all and the vaccine will be ineffective.
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Hannah Crowder @mshcrowder.bsky.social · 17/12/2025
Vaccines work by training immune system cells to recognize the virus, thus reducing the time it takes for your body to respond to an exposure. The Covid vaccine trains your immune system to recognize a portion of the spike protein. But, the spike protein changes rapidly due to random mutations.
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Hannah Crowder @mshcrowder.bsky.social · 17/12/2025
It takes time for the immune system to recognize the virus and mount an attack. Prior infection leaves behind immune system cells that are already trained to recognize the virus, reducing the time it takes to mount an attack. If you can mount an attack fast enough you don’t actually get sick.
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Hannah Crowder @mshcrowder.bsky.social · 17/12/2025
Viruses replicate inside your cells. Sometimes, if you have been infected with the virus before, or you have had a vaccine, your immune system is able to destroy the viruses before they damage enough cells to be noticeable and before other parts of your immune system kick in resulting in symptoms.
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Hannah Crowder @mshcrowder.bsky.social · 29/11/2025
But I see students work hard every day. But they have to be interested and invested. The struggle is finding the passion and cultivating it. College and your entry level jobs are a means to an end. An end that is increasingly failing to be reached even with that college degree.
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