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Serie esencial del laboratorio de biología: investigación microscópica (biología de la escuela secundaria)

Como parte de sus experimentos de laboratorio de Biología, los estudiantes de Biología de la escuela secundaria aprenderán cómo hacer portaobjetos húmedos y observar portaobjetos de microscopio preparados. Examinarán especímenes de cada reino para cumplir con los requisitos del laboratorio. #ACADÉMICO
Jennifer Anderson
Puntuación media:
4.9
Número de reseñas:
(17)
Clase
Jugar

Qué está incluido

9 reuniones en vivo
6 horas 45 minutos horas presenciales
Tarea
1 hora por semana. Most labs will be completed during class, occasionally you will need to do some work prior to class (collect leaves, pond water, grow mold). The purpose of the course is to support what you are studying on your own in your text book, topics can be found in CK-12 Biology FlexBook if you would like to study topic further.
Evaluación
Students are responsible for keeping lab reports in their notebook. (optional)

Experiencia de clase

Nivel de inglés: desconocido
Grado de EE. UU. 9 - 12
(High School Biology Compound Microscope Labs / Introduction to Microscopy & Microbiology)

In the lab, we will start by introducing the topic for the day. Then, I will assist students in creating wet-mount slides and examining specimens. The remainder of the lab will be for students to explore wet-mount slides or view prepared slides at their discretion. Students are encouraged to ask questions and share their observations with pictures. I will be checking in with students regularly and available to answer any questions they may have.

To fully participate in this lab course, you will need a functioning compound microscope that has the ability to magnify at 40x, 10x, and 40x. Please confirm all pieces are present and functioning, if unsure contact me prior to first lab and I will glad to help with basics.  Additionally, if possible, it would be beneficial to have  ocular (eyepiece) lens of 10x or 25x. I recommend using the 10x lens as it allows for a larger field of view. Having a second eyepiece also facilitates easy magnification increases. With a microscope, you will be able to explore everyday surroundings and discover mesmerizing details that are sure to leave you in wonder! 

Please take note of the following:
1. Student compound microscopes have increased magnification, some come with 10x eyepiece, many come with 25x (some have 2x extender). What does this mean? 
      Low power viewing    10x times 4x = 40x - is now 25x times 4x =100x (add 2x extender (200x) 
      Medium power            10x times 10x = 100x, is now 25x times 4x = 250x (add 2x = 500x)
      High Power                  10x times 40x = 400x, is now 25x times 4x = 1000x (add 2x = 2000x)
In the past 1000x was primarily viewed with special oil immersion lens, add to it students can now easily take digital pictures of what they are viewing, both making it easier to sketch and to share. 
2.  This class relies primarily on slides your student will learn techniques to make, prepared slides are optional.
3. They have the option of taking digital pictures through the eye piece making what they are viewing easily shareable. 

During each lab session, we will explore specific topics using both wet-mount and prepared slides. It's a good idea for students to take notes on their observations in a notebook. Although I will provide a standard report format, students can choose to use either a physical or digital notebook. Here's a summary of the topics we'll cover and the suggested slides for each lab.

Week 1 
Introduction to microscope and all its features. Practice viewing news print and sketching. 
Wet-mount slide: (1) newsprint and (2) swab cheek cells with toothpick and Methylene Blue (optional).
(microscope, newspaper, tooth pick, slide, slide cover slip, Methylene Blue, soap and water to clean slide)

Week 2: Kingdom Monera/ Protista 
Observe and draw prepared Protista slides as viewed under microscope. 
Wet-mount slide: aquarium, pond, lake or ocean water sample if available, use to prepare slide and view sample. 
(Microscope, prepared slides with Protista -amoeba, paramecium, euglena, volvox, spirogyra, diatom
**optional: water sample, slide, cover slip, eye dropper)

Week 3: Cell Structure
 Wet-mount slides (1) red onion and water, (2) red onion and salt water solution. 
prepared slides ranunculus root, zea mays root.
(red onion, 2 slides, 2 cover slips, water, salt)

Week 4: Kingdom Fungi
Wet-mount slides from (1) either wild or purchased mushroom at room temperature, and (2) bread or fruit mold specimen.
Optional: Camembert cheese sample for wet-mount slide
(slides, coverslips, water, scalpel/ knife, probe, mushroom, molded bread/ fruit sample, optional cheese)

Week 5 The Cell
Wet-mount slides: (1) cork sample and (2) onion (iodine optional) / red onion.  
Prepared slides: animal cells, (hydra), plant cells 
(cork, onion (iodine optional) or red onion, slides, cover slip, water, eye dropper, scalpel/ knife, paper towel)  

 Week 6 The Cell/ Cell Reproduction DNA
Wet-mount slide: (1) banana sample (optional - iodine stain) and (2) Anacharis leaf (or other thin plant leaf).
View prepared slides: Root tip slide - Allium root tip, Ascarsis mitosis.
(banana, iodine (optional), Anarcharis leaf, water, salt, cotton swab, slides, cover slips, scalpel/ knife)

Week 7 Invertebrates Of Kingdom Animalia
Wet-mount slide: natural sponge spicules using sample from natural sponge.
Prepared slides: sponge, hydra and planarian - insect slides
(natural sponge, slide, slide cover slip, tweezers/ probe, scalpel/ knife, eye dropper, water)

Week 8 Kingdom Animalia: Phylum Chordata
Optional: wet-mount slides - red blood cells. 
Prepared slides: frog blood, red blood cells.
Observation of different kinds of tissue cells under microscope
Prepared slides: muscle tissue, nerve tissue, epithelial tissue, connective tissue)
(optional--...drop of ..blood ...slide, cover slip, sanitized pin)

Week 9 Kingdom Plantae
Wet-mount slide: flower pollen and petals.
Prepared slides: Zea mays (corn) stem, Zea mays (corn) root, Ranunculus stem, Ranunculus root. 
(flower, scalpel, slide, cover slip, water, eye dropper)
Metas de aprendizaje
In this course, you will:

- learn how to use a compound microscope and create wet-mount slides 
- gain the skills to confidently view both wet-mount and prepared slides
-  conduct experiments and produce lab reports
- optional digital photography may also be included.
objetivo de aprendizaje

Programa de estudios

9 Lecciones
más de 9 semanas
Lección 1:
Week 1: Introduction to Microscope
 Introduction to microscope and all its features. Practice viewing news print and sketching. Wet-mount slide: (1) newsprint and (2) swab cheek cells with toothpick and Methylene Blue (optional). 
45 minutos de lección en vivo en línea
Lección 2:
Week 2: Kingdom Monera/Protista
 Observe and draw prepared Protista slides as viewed under microscope. Wet-mount slide: aquarium, pond, lake or ocean water sample if available, use to prepare slide and view sample. 
45 minutos de lección en vivo en línea
Lección 3:
Week 3: Cell Structure
 Wet-mount slides (1) red onion and water, (2) red onion and salt water solution. Prepared slides ranunculus root, zea mays root. 
45 minutos de lección en vivo en línea
Lección 4:
Week 4: Kingdom Fungi
 Wet-mount slides from (1) either wild or purchased mushroom at room temperature, and (2) bread or fruit mold specimen. Optional: Camembert cheese sample for wet-mount slide 
45 minutos de lección en vivo en línea

Otros detalles

Orientación para padres
Compound microscopes: It is assumed that all learners have a properly functioning microscope. I will provide guidance to help learners become more comfortable using all the microscope adjustments to view slides successfully. Please make sure that all parts of your microscope are present and functional. *If learner has microscope with limited viewing, they will be able to observe experiments and views on screen as well. I do encourage learners to either use a digital microscope or download app to allow higher camera magnification in such cases.
Lista de útiles escolares
Weekly supplies are mostly household items, as listed in description and will be given again on class page. Compound microscope - If your student already has a microscope that works, wonderful! - If not check library, rentals, or Amazon. - Must have light source/ cord, coarse/ fine adjustment, optical lens Basic Slide preparation kit (recommended) Blank slides (~5), coverslips (~5), eye dropper, scalpel/ knife, (optional: microtome), probe (pin), tweezers Optional Dyes: Methylene Blue, Iodine Prepared slide kit - -many microscopes come with some prepared slides, substitutions of similar slides are fine. - Basic Biology Slide Kit (25 slides) recommended, larger slide kits welcome based on your learners interest - prepared slides we will use: Week 1 -- Week 2: Protista: amoeba, paramecium, euglena, volvox, spirogyra, diatom Week 3: -- Week 4 -- Week 5: animal cells (hydra), plant cells Week 6: Allium root tip, Ascarsis mitosis Week 7: sponge, hydra and planarian, invertebrate/ insect Week 8: frog blood, red blood cells; muscle tissue, nerve tissue, epithelial tissue, connective tissue Week 9: Zea mays (corn) stem, Zea mays (corn) root, Ranunculus stem, Ranunculus root
Idioma en el que se imparte la clase
Inglés
Se unió el August, 2021
4.9
17reseñas
Perfil
Experiencia y certificaciones del docente
Licenciatura en Ciencia desde State University of New York College at Brockport
Grado asociado desde Salvation Army School for Officer Training
I have taught in-person Biology labs that frequently used microscopes and slides made in lab. Incorporating technology allows students to aim to support your student in building confidence and practical skills through guidance in their studies. Although books have their uses, nothing compares to the benefits of hands-on learning and witnessing the marvels of Biology. My love for Biology stems from its deceptive simplicity, which upon deeper examination reveals a truly astounding complexity.

My area of study is Biology, and I hold a Bachelor of Science degree where I learned about mammalogy, ornithology, ecology, marine biology, microbiology, histology, and aquatic invertebrates. In my co-op lab classes, I gained hands-on experience with microscopes and learned how to create slides rather than just viewing prepared ones. I am now providing microscope classes through Outschool, where students are encouraged to use their compound or digital microscopes during open lab time. I utilize digital cameras to share my own microscope view,  as well as encourage students' to share their microscope view. While I value traditional lab techniques, I also believe that technology can enhance the lab experience when appropriate. see more clearly what they are looking for and share what they are seeing, allowing for an enhanced lab experience.

Personally I am an ever curious Biologist - I've studies mammalogy, marine biology, ornithology, microbiology, and more. In my classroom I encourage my students to explore and follow there curiosity, ask questions and find answers. I enjoy incorporating traditional learning with technology, helping students gain a deeper understanding material in practical ways. 

Reseñas

Clase grupal
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14 US$

semanalmente o 125 US$ por 9 clases
1 x por semana, 9 semanas
45 min

Completado por 5 alumnos
Videoconferencias en vivo
Edades: 13-18
1-4 alumnos por clase

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