classwork/Homework
So let's start with the biggest news that affects you, grading policy. While many of you have been whispering back and forth about how grades would be calculated, our superintendent has now made the final decisions. Your grade can be better than what it was on March 13th, but cannot get worse. I know exactly where your brain is going, and let me address that. If I had an A on March 13th, you will end up with an A no matter what happens in the coming weeks, therefore why should I do anything?! First, I'd like to say if you have a good grade, your hard work sure has benefited you, good job. On the other hand, I do plan on covering material that you will need for future studies in science, and even if your grade is wrapped up, there is more content you will want to know. If that doesn't matter to you, I can't stop you. People who had grades lower than an A before break, you now have a chance to bring your grades up! I hope you will all want to work on what gets posted. Some of your websites are beautiful!
So how will this affect grading? Well, from here on out, if the score I would give you for the week would be less than the grade you had on March 13th, I will place no mark at all. I have actually gone through the previous weeks grades and took out anything that could adversely affect your grade, so you may have seen a score disappear. This new approach is in line with what I have been instructed to do, and is equitable considering that some of you may be dealing with COVID infection, job loss, etc. within your families. Regardless, I will still be checking out everyone's website each week. Note, if you are forgetting to publish your work, I will blast right though and you will have no mark. I hope you will keep challenging yourself. Quote of the week: “Keep away from people who try to belittle your ambitions. Small people always do that, but the really great make you feel that you, too, can become great.” Mark Twain I really miss being with you guys! Stay safe! IB BIOLOGY: Review Week 1 - Muscle and nerve function. Photosynthesis and cellular respiration If you have any questions about what is written below, please feel free to visit me on zoom from 8am-noon today: https://guhsd.zoom.us/j/99042145983?pwd=M2tOT0tycG1zODgyYkEwNzhObU42UT09 So you had a chance to finish up the work on plants and although it was a crash course, you should have started to see some of the recurring biochemistry concepts continue to pop up, such as osmosis, membrane structures, adhesion, cohesion, hormones, etc. I noticed that there were some misunderstandings and two key questions that I made to see if you really got it. One was the aloe mite case study and the other was the acid growth hypothesis. If you struggled with these concept, please talk to me today on the zoom hours (see above). Many of you seem to be pretty good at filling in the blanks, but not as good as putting it all together. As we prepare for our end of the year exams, you probably already know that if you are an IB test taker, the IB has decided that your final grade will be determined by grades, your IA, and some magical formula. They will then use these data along with past data on you to calculate a final score. I’m really not sure how this works, but I keep giving them what they ask for and I’m sure they will be equitable. For those of you who will be attacking the AP exam. It sounds like this is a whole different animal than what students have seen in the past. As of this moment, you will be REMOTELY taking the exam on the 18th of May. You will have a computer based exam with only 45 minutes to complete the test! You should already have been contacted by AP and possibly already taken practice exams. Please contact me if you have any questions, but know that in the next two weeks I am going to incorporate your some of the major themes into the review. From what I know now, the test will be more about data analysis and explanation more than anything else. Feel free to try some of the free response questions on the Khan Academy website. As we ALL prepare for the end of the year, you should know that you have completed the entirety of the IB HL Biology curriculum! Congratulations! This does not mean that we are done learning and there are some concepts that will come up over and over again as you continue into college. SO, for these next two weeks we will be focusing on the big ideas that will be with you your whole career (which will also help prepare AP test takers), and as you can guess, they all involve biochemistry. ...Know that our final 2 weeks will be a fun project! First, I need you to create two pages:
If you are in period ONE and completing nerve impulse and muscle contractions: Here is what you must include on your page about Nerve Impulse and Muscle Contractions. This will probably be an equal collection of text and image. Please cite sources and do not use other people’s text. Write your own explanations. If it doesn’t sound like you, I will check it! The idea of this is that while you look at these processes that you are observant of the biochemistry that is similar in all biological function. You will get a chance to review the work of the other group next week. Muscle Contraction:
https://www.edumedia-sciences.com/en/media/355-muscle-contraction Nerve Impulse
If you are in period TWO and completing cellular respiration and photosynthesis: Here is what you must include on your page about cellular respiration and photosynthesis. This will probably be an equal collection of text and image. Please cite sources and do not use other people’s text. Write your own explanations. If it doesn’t sound like you, I will check it! The idea of this is that while you look at these processes that you are observant of the biochemistry that is similar in all biological function. You will get a chance to review the work of the other group next week. Photosynthesis
https://www.biologycorner.com/worksheets/photosynthesis_virtual_lab.html Game: https://biomanbio.com/HTML5GamesandLabs/PhotoRespgames/photointeractivehtml5page.html Photosynthesis Interactive: https://www.biointeractive.org/classroom-resources/photosynthesis Cellular Respiration
http://www.phschool.com/science/biology_place/labbench/lab5/intro.html If you have done all of this work thoughtfully you will have noticed a lot of the same ideas and concepts keep popping up. The use of ions, building and breaking of molecules, the role of water are all vital to these processes. Next week as we prepare for the AP exam, you will be using these review pages that you have constructed with some practice questions. Please contact me if you have ANY questions about the upcoming AP Biology exam that you will take at home. AP TEST ON MAY 18th EVERYONE please complete your assigned review task. Click the link to see your assignment. https://docs.google.com/spreadsheets/d/1C_QehhooBotqy1zbhR5pqojNrN6lUzBTJPgedAk_C6E/edit?usp=sharing. This review page should include all of the Applications, Understandings, and Skills in a condensed format. Please go to the online book and be sure that you can create, in as compact a way as possible, the information on all of the three categories. This will probably mean that you are using lots of images, charts, etc. and minimal data. Maybe this is where we need to make videos? Regardless, your work will provide a platform for others to learn from. We will be using these pages for next week and applying the content to some practice AP questions, so be sure to register your page with the following Google Form: https://forms.gle/XEnRiCTsNBagvAPp7 BIOLOGY and COMMUNITY HEALTH: How do the materials cycle through the biotic and abiotic parts of an ecosystem? If you have any questions about what is written below, please feel free to visit me on zoom from 8am-noon today: https://guhsd.zoom.us/j/99042145983?pwd=M2tOT0tycG1zODgyYkEwNzhObU42UT09 So let's start with the biggest news that affects you, grading policy. While many of you have been whispering back and forth about how grades would be calculated, our superintendent has now made the final decisions. Your grade can be better than what it was on March 13th, but cannot get worse. I know exactly where your brain is going, and let me address that. If I had an A on March 13th, you will end up with an A no matter what happens in the coming weeks, therefore why should I do anything?! First, I'd like to say if you have a good grade, your hard work sure has benefited you, good job. On the other hand, I do plan on covering material that you will need for future studies in science, and even if your grade is wrapped up, there is more content you will want to know. If that doesn't matter to you, I can't stop you. People who had grades lower than an A before break, you now have a chance to bring your grades up! I hope you will all want to work on what gets posted. Some of your websites are beautiful! So how will this affect grading? Well, from here on out, if the score I would give you for the week would be less than the grade you had on March 13th, I will place no mark at all. I have actually gone through the previous weeks grades and took out anything that could adversely affect your grade, so you may have seen a score disappear. This new approach is in line with what I have been instructed to do, and is equitable considering that some of you may be dealing with COVID infection, job loss, etc. within your families. Regardless, I will still be checking out everyone's website each week. Note, if you are forgetting to publish your work, I will blast right though and you will have no mark. I hope you will keep challenging yourself. Quote of the week: “Keep away from people who try to belittle your ambitions. Small people always do that, but the really great make you feel that you, too, can become great.” Mark Twain I really miss being with you guys! Stay safe! Reflection: As you have probably figured out from last week, communities are not really the same as ecosystems. The organisms in a community don’t only rely on each other, but also rely on the abiotic (non-living) portions of the world, such as sunlight, rain, soil, etc. You saw this cycling when you made your food web last week when you probably showed sunlight giving energy to the producers. When we consider how the biotic (living) and abiotic (non-living) things work together, we can then call it an ecosystem. In these ecosystems, the materials (CHNOPS) must be recycled. Because we have a limited amout of these materials on Earth it is important to know these cycles and how they work. Watch this video on Ecosystems to get a better understanding: https://www.youtube.com/watch?v=9bQNRVyI4I0 Now that you have watched that video, and before we move on, please go to the bottom of your Biodiversity page and add an explanation of the following terms: Population, community, and ecosystem. Your definition should use your park to explain them. Now, as you may know, the two most important abiotic factors are the cyclings of water and carbon. Here’s a good overview of the whole idea of materials cycling in the earth; https://www.youtube.com/watch?v=Bn41lXKyVWQ Of course you know that plants need water to photosynthesize, but it is also important to the vast majority of all the chemical reactions that happen in your body. Carbon on the other hand is the “backbone” to all organic molecules (proteins, lipids, carbohydrates,and nucleic acids)! Now, for this week’s work, I will ask you to make 3 new pages for your park website. This first page will be titled “The Water Cycle,” and the second will be titled “The Carbon Cycle,” the third will be called “Energy Movement.” To complete this week’s work properly you will need to be familiar with four terms: geosphere, hydrosphere, atmosphere, and biosphere. Please create a list that explains these terms by describing how or where they are in your park. In other words, for hydrosphere you should explain it and then include all of the lakes and streams in your park. Do this for all four of the terms as they apply to your park as a list, and place this at the top of all three of the pages you have created. On the first page titled “Water Cycle” Using your park, show how water in its many forms, passes back and forth from the geosphere (also called the lithosphere), to the hydrosphere, atmosphere, and biosphere.
BONUS: Also Include parasites and detritivores/saprotrophs, on your descriptions. Be sure to underline these words in the text. Resource: https://www.usgs.gov/special-topic/water-science-school/science/fundamentals-water-cycle?qt-science_center_objects=0#qt-science_center_objects https://www.youtube.com/watch?v=oaDkph9yQBs On the second page titled “Carbon Cycle” Using your park, show how carbon in its many forms, passes back and forth from the geosphere (also called the lithosphere), to the hydrosphere, atmosphere, and biosphere. This should be in the form of a diagram and should follow IB drawing rules (See below)
BONUS: Also Include parasites and detritivores/saprotrophs, on your descriptions. Be sure to underline these words in the text. Resource:https://courses.lumenlearning.com/wm-biology2/chapter/the-carbon-cycle/ On the third page titled “Energy Movement” As you learned last week, some organisms in an ecosystem are autotrophs (plants, etc.). They build their own food (sugars) and then use them to grow. Other organisms are Heterotrophs and must eat the autotrophs to obtain energy (sugars) that they need for growth. While all materials are recycled in a system, energy is different. We aren’t able to recycle all of the energy in the system. We get a lot from the sun, and we pass energy from one place to another (remember the 10% rule), but we also lose a lot out into the environment and into space. As long as the sun is releasing energy we will always get more, but know that not all of it stays here on Earth. More about this next week. The process that uses water and carbon as part of the exchange of energy is called photosynthesis and cellular respiration. We've gone over these in the past so this should be a review. Together we sometimes call this "biological energetics" because these processes don’t just transfer material, but also energy. On this page:
As a final reflection, think about the cycles that we see in your park. Animals hunting animals, seasonal rains, fires, etc. How are these special for your park? Return to your landing/front page and write a brief description of how your park is unique from where we live in California. You may find we have some similarities. Next week we will look at what can happen if these cycles (energy or material) get unbalanced! Checklist
IB Drawing Rules (if you are doing it by hand):
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9/9/2020 06:08:15 am
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