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I've been getting a lot of requests to share documents I store on google drive.  Anyone can edit these documents without me giving permissions.  Just click on the "file" tab and either download it as a powerpoint or "make a copy" which will copy it to your own drive.    I don't give edit permissions because if a person made a change, it would also change my documents.  I recognize that everyone has different styles, different classes, and different age groups, so editing and changing the files is perfectly fine.   Also, it's nice when readers alert me to typos and errata!

Example:  This screenshot is from a doc file that I don't own.  If I wanted to use it, I could make my own copy and then make any changes I wanted.    My changes would not effect the owners' original copy.  
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cug
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I don't teach chemistry, but I think I could have fun with this game.
Learn the Periodic Table of Elements in a fun way with Periodic Table Battleship.
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Oooooo....thank you!!!
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To align lessons with Next Generation Science Standards, I've been working on activities for 9th graders involving cellular respiration and photosynthesis. It's been challenging to present the material in a way that those students can understand. They haven't taken chemistry and have no concept of redox reactions and electron acceptors.

I started with the question "Why do we need oxygen?" What followed was a mini-case study on the Chicago Tylenol murders, cyanide, and finally the electron transport chain. It is intended for 9th graders, so the model is really simplified. 
Part 1: Background. newspaper In September of 1982 ,Mary Kellerman gave her 12 year old daughter a painkiller when she awoke during the night complaining of a sore throat. At 7 am the next morning, her daughter was found collapsed on the bathroom floor, and later pronounced dead.
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I really like this, thanks so much for sharing.
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There is just over a month left before the AP Biology test. I was looking over the formula page and noticed the equation for standard deviation was on it. While I'm confident my students can do a chi square, standard deviation isn't in my curriculum anywhere. I'm hoping this worksheet will help students get a rudimentary understanding in case it comes up on the test. Would love to hear comments or suggestions from anyone who does teach SD.
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Group work is one topic that teachers have really strong opinions about. I use it, but not very frequently and usually as a way to reinforce or enhance topics that were learned via direct instruction.
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I totally agree....4 is too many
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Coincidentally, we were just talking about chimeras in class today. This seems like an extreme case where the baby's father was actually the absorbed (or consumed) twin. The parents had a genetic test done because of the baby's blood type. Strange stuff! 
A couple who used a fertility clinic to conceive was ready to sue when the child’s blood type didn’t match up with mom and dad’s. Obviously the clinic
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Oh wow, that was a really strange case! Thanks for the link.
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One of my favorite early demonstrations is this one on "sewer lice." Basically, you submerge raisins in carbonated water (or white soda) and they will float to the surface and then sink and repeat this all day long. I ask my students to make a guess about whether they think the creatures are alive. Sometimes I even add a backstory about the creatures being discovered in the sewer and that they are edible. You can eat one to really mess with the freshman! 
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Excellent video! How cool you manipulated the scene to make it look so real automatic since we all know raisins move by the power of invisible superheroes!  But seriously, thank you very much.  Will share!
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During the evolution unit of AP Bio, we do a case study on lice, which examines how three different species of lice (head, pubic, and body) evolved. It's a great case for the "gross" factor and an excellent way to show how phylogenetic studies reveal relationships. This article from Forbes about resistant lice will be a great follow-up to the case:

Case Study: http://biol.co/l1ce
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Do you have a handout of some sort to accompany this activity? I would love to share this with my students! Thank you!
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I've been re-working my AP ecology unit to accommodate "senioritis." The changes move the unit away from lectures and note-take to case studies and investigations. The first adjustment was to the Rolly-polly (pillbug) investigation. I've adjusted this lab to include 2 pages of case-work on animal behavior which includes topics such as innate, learned, taxis, and evolutionary basis of behavior. The final task is for them to design and conduct a behavior experiment with pillbugs or other classroom specimens.
Case Study: Survivorship and Population Models. loggehead Part 1: Hatchling Exodus. Amy was very excited to be staying at a resort in Florida where loggerhead turtles lay their eggs. She had carefully read the literature that outlined the rules for her stay. Rules that were in place so that ...
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+Kevin Murray , I love that site.  I use a lot of their case studies.   I haven't paid the fee for the answer keys,  if I can't figure out the answers then the content is probably too difficult for my students.  
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This is the second time in two weeks that I've heard or read about RNA interference. This looks like a good, current article that not only explains gene expression but includes how RNAi can potentially be used to treat disease. With all the information, news, and stories available online, do we even need textbooks anymore?
Hijacking a cell process called RNA interference can let scientists turn off a selected gene. Its silencing can point to what genes do when they’re on — and may lead to new treatments for disease.
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Contact local greenhouses, growers. If you have a large university they sometimes have county extension agriculture agents that can help. I used Penn State Extension  http://extension.psu.edu/
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I deal with the myth of blue blood every year, but this video is the first to helpfully explain why veins appear blue. Hint: it's the same reason why the sky is blue.
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I've been using google drive this year for student submissions of article summaries. I love the comment system as a way to actually have a conversation with students about their writing. I also love that I don't have a pile of papers cluttering up my desk.
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Thank you for sharing about Classroom--I have all my classes on Google Sites, will look into this.  Could someone address the errors on http://biologycorner.com/worksheets/measuring_with_microscope.html  The scanning shows 4mm or at least 3.8mm, not 3, and it says the low power is 2mm, then all calculations are based on it being 1mm.  Thank You.
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Resources for students and teachers of biology and the life sciences.
Introduction
The Biology Corner is a website I started in 2000, over the years I have added content and resources I have used in my biology classes.  Teachers and students alike can find help with concepts, images, and practice quizzes for all major biological topics.  I also include photos of anatomy, mainly from classroom dissections and human models I have in the classroom.