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7th Science Rocks!


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Friday, Dec. 15

Performance Standards/ Disciplinary Core Ideas / Science & Engineering Practices:

3-LS3-1 Analyze and interpret data to provide evidence that plants and animals have traits inherited from parents and that variation of these traits exists in a group of similar organisms.

LS1.B: Growth and Development of organisms:
DCI: Organisms reproduce asexually or sexually, and transfer their genetic information to their offspring.

DCI: LS3.A Inheritance of Traits
Variations of Inheritance of traits between parent and offspring arise from genetic differences that result from the subset of chromosomes (and therefore genes) inherited

LS3.B Variation of Traits
Different organisms vary in how they look and function because they have different inherited information.
In sexually reproducing organisms, each parent contributes half of the genes  (at random) in the offspring.  Offspring have two of each chromosome and hence two alleles of each gene, one acquired from each parent. These versions may be identical or may differ from each other.

 

Today in Class:

1. Check and correct for accuracy: Punnett Square Fun -WS #2.  {We also checked Punnett Square #1 for completeness.}  I glanced at your scores as you were turning in these papers, most of you are right on track with these genetic crosses.  If you are still having a hard time, come for study and practice help Monday or Tuesday.  Then you will be able to understand the concepts better.  and then make up your worksheet, performing better.

2.  Next, you learned how to differentiate between acquired and inherited traits — as we discussed these and you took notes.  Next, you took notes as we reviewed the purpose and importance of chromosomes, genes, alleles and DNA.  You completed the “Fill In” notes and referred to the human chromosome diagrams and photos shown to you.  All of these notes will be on my “Notes for the Unit” page on this Blog.

3.  I asked students about the possibility of bringing some household items for the DNA Lab next week.  Some of you volunteered to bring items– you should ask a parent at home if this is ok.  I will ask again Monday who has the “OK.”  Some of the items I asked you to check were….  strawberries, bananas, quart size freezer bags, toothpicks, salt, dishsoap (like plain Palmolive, Lemon Joy), cheap shampoo (like Suave –with Sodium Laurel Sulfate in the ingredients), cone-shaped coffee filters, $1 meat tenderizer (with Papain in the ingredients).

 

Take Away Tasks – Homework:

1 . Quiz #2: Genetics and Heredity——> next Thursday, Dec. 21.

2.  Ask about the possibility of bringing in items for the DNA Lab next week Wednesday.  See #3 above!

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Thursday, Dec. 14

Performance Standards/ Disciplinary Core Ideas / Science & Engineering Practices:

MS-LS3-2 Develop and use a model to describe why asexual reproduction results in offspring with identical genetic information and sexual reproduction results in offspring with genetic variation.

LS1.B: Growth and Development of organisms:
DCI: Organisms reproduce asexually or sexually, and transfer their genetic information to their offspring.

DCI: LS3.A Inheritance of Traits
Variations of Inheritance of traits between parent and offspring arise from genetic differences that result from the subset of chromosomes (and therefore genes) inherited traits.

***How did I construct and develop a model to illustrate that sexual reproduction results in a variation of traits in the offspring produced?

***Can I accurately evaluate another students’ model to determine if they correctly illustrated concepts associated with sexual production and Mendel’s Genetics?

 

Today in Class:

1. First you all described your answer to the essential question #2 (above).

2.  Next, our class completed another Science Walk with your dragons.  these questions should have really helped you to determine whether or not you can apply, analyze and evaluate each other’s dragons.  If you did not answer a question correctly, then the standing (walking) student should have written that concept down on your worksheet.

3.  Next, everyone checked that they could complete the Punnett Square WS #1 practice problems correctly.  I completed these on the front board and you checked to see if your results matched with mine.

4.  Then the class split into 2 groups: 1 group in the back knew and understood Punnett Square problems.   Those students worked on SpongeBob P Square problems on their own.   The group of students in the front worked on the SpongeBob P Square problems with me and you were able to ask questions and double-check your work.

Homework – Take-Away Tasks:

Complete Punnett Square Fun WS (P Square WS #2).

 

 

 


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Wednesday, Dec. 13

Performance Standards/ Disciplinary Core Ideas / Science & Engineering Practices:

MS-LS3-2 Develop and use a model to describe why asexual reproduction results in offspring with identical genetic information and sexual reproduction results in offspring with genetic variation.

LS1.B: Growth and Development of organisms:
DCI: Organisms reproduce asexually or sexually, and transfer their genetic information to their offspring.

DCI: LS3.A Inheritance of Traits
Variations of Inheritance of traits between parent and offspring arise from genetic differences that result from the subset of chromosomes (and therefore genes) inherited traits.

***How did I construct and develop a model to illustrate that sexual reproduction results in a variation of traits in the offspring produced?

***Can I accurately evaluate another students’ model to determine if they correctly illustrated concepts associated with sexual production and Mendel’s Genetics?

 

Today in Class:

1.  I explained  the 3-2-1 Reading Strategy.  Like other reading strategies, this one should help you to remember what the science text reading was all about– the key ideas.  You read pages 77-79  with a partner and should have completed a 3-2-1…. 3 Key Ideas or 3 Key things you learned; 2 questions about what you read (or 2 questions from the reading); 1 drawing or 1 diagram to help you to refer back to the information in the reading.

2.  Next, the class read the directions for the Science Walk to be completed as you evaluate the dragon model that you designed based on the genotype & phenotype for the dragon.  Half of the class began by observing and analyzing their partner’s dragon.  You were given a set of questions to ask the other students as you looked at their model and listened to their answers.  Then those students provided feedback to the partners.  Students then switched roles and started the process all over again. This seemed to go very well in most of the classes.  What did you think?

 

Take Away Tasks – Homework:

Read pages 80- 84.  Use the 3-2-1 Reading Strategy (that you practiced in class today).  You had the option to pick up a hard copy of the text pages in class or check out Google.classroom for the assignment.  [—–> I will upload these pages as an assignment in the next few minutes!]


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Tuesday, December 12

Performance Standards/ Disciplinary Core Ideas / Science & Engineering Practices:

MS-LS3-2 Develop and use a model to describe why asexual reproduction results in offspring with identical genetic information and sexual reproduction results in offspring with genetic variation.

LS1.B: Growth and Development of organisms:
DCI: Organisms reproduce asexually or sexually, and transfer their genetic information to their offspring.

DCI: LS3.A Inheritance of Traits
Variations of Inheritance of traits between parent and offspring arise from genetic differences that result from the subset of chromosomes (and therefore genes) inherited

 

Today in Class: 

1.  I reminded the students that this Dragon Breeding activity is meant to help you to understand and apply all of these wonderful genetics concepts: genotype, phenotype,  dominant, recessive, Parent generation, Filial Generation, homozygous, heterozygous, chromosomes, genes, alleles….

2.  You were given ~35 minutes to design draw and shade your dragon according to its’ genotype and phenotype.  You should have practiced explaining the above concepts to students sitting in your area, to practice for tomorrow’s Science Walk!

 

Homework – Take-Away Tasks!: Complete your Dragon – with the correct traits and phenotype matching the genotypes.

 

 


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Monday, Dec. 11

Performance Standards/ Disciplinary Core Ideas / Science & Engineering Practices:

MS-LS3-2 Develop and use a model to describe why asexual reproduction results in offspring with identical genetic information and sexual reproduction results in offspring with genetic variation.

LS1.B: Growth and Development of organisms:
DCI: Organisms reproduce asexually or sexually, and transfer their genetic information to their offspring.

DCI: LS3.A Inheritance of Traits
Variations of Inheritance of traits between parent and offspring arise from genetic differences that result from the subset of chromosomes (and therefore genes) inherited

 

Today in Class:

1  I introduced Dragon Inheritance with the story that you are all “Gameskeepers” and you have to breed dragons, and keep good data on the male and female genotypes, in order to be successful.  We reviewed chromosomes and genes, traits, genotypes, phenotypes, heterozygous, homozygous, alleles,….   You should have showed your dragon picture (drawing, copied b/w picture, file saved online, book cover,…) to someone at your table.  You will use this as you draw your dragon’s traits.

2.  You and your fellow gameskeepers walked from station to station, and used the pennies to determine the parents and offsprings’ alleles.  You recorded this on your Dragon worksheet.  You should have referred to the letter choices as alleles and genotype, and noted which pairs that you chose were heterozygous and homozygous, and talked about your dragon’s traits!

 

Homework / Take Away Tasks:  None today!

 

 


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Friday, Dec. 8

Performance Standards/ Disciplinary Core Ideas / Science & Engineering Practices:

3-LS3-1 Analyze and interpret data to provide evidence that plants and animals have traits inherited from parents and that variation of these traits exists in a group of similar organisms.

LS1.B: Growth and Development of organisms:
DCI: Organisms reproduce asexually or sexually, and transfer their genetic information to their offspring.

DCI: LS3.A Inheritance of Traits
Variations of Inheritance of traits between parent and offspring arise from genetic differences that result from the subset of chromosomes (and therefore genes) inherited

LS3.B Variation of Traits
Different organisms vary in how they look and function because they have different inherited information.

Today in Class: 

1.  Students were given time to organize their binders.  If you need duck tape for dividers/ sections, or if you need notebooks or folders to re-organize your materials, let your parents know – or ask me.

2.  I explained what it means to have an “open-notebook” (open binder) quiz.   I encouraged you to answer the questions on the quiz if you knew the answers first— before referring to your notebook.

3.  I checked your Punnett Square WS for completeness (front side) and then we answered these questions together.  If you had answered any questions incorrectly, you were to write the correct answers in red pen.  About half of the classes had time to complete the first Punnett Square problem on the back side of that HW WS.  Monday — you will be given ~5 minutes to complete those P Square problems and these will be corrected.

4.  I asked the class for feedback about starting a positive /motivational/ teamwork type of group and students wrote down ideas.

 

Homework – Take Away Tasks: If you need some reinforcement with genotype/phenotype or heterozygous/homozygous alleles and traits, or practice with Punnett Squares, please check out these interactive sites (these were also listed on my Notes for This Unit page on this Blog.  


1.  Drag and Drop Genetics
 Punnett Square Interactive Sites and Other Genetic Cross Websites:
DragonFly TV Breeding Dogs & Genetics

2. Bunny Genetics: Create Bunnies With the Correct Alleles
Furry Family Genetics Ohio Edu

3. Punnett Square Practice – Interpreting the Offspring’s Alleles
Athro Punnett Square Examples

4. Perform The Punnett Square Cross: write your practice problem on paper and then check online
Punnett Square Crosses Glencoe

 


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Thursday, Dec. 7

Performance Standards/ Disciplinary Core Ideas / Science & Engineering Practices:

LS1.B: Growth and Development of organisms:
DCI: Organisms reproduce asexually or sexually, and transfer their genetic information to their offspring.

DCI: LS3.A Inheritance of Traits
Variations of Inheritance of traits between parent and offspring arise from genetic differences that result from the subset of chromosomes (and therefore genes) inherited

LS3.B Variation of Traits
Different organisms vary in how they look and function because they have different inherited information

***Can you analyze and interpret data to provide evidence that plants and animals have traits from parents?
***Why do different organisms vary in how they look and function? [Relate this to their inherited information.]

Today in Class:       {This is detailed especially for the Band students who were not in class today during 4th hour.}

1.   First – I double-checked that you understood the dragon drawing directions.  These are very clearly stated on Wednesday’s Blog post: HW section.

2.  Partners flipped a penny 50 times – and your teammate recorded the number of Heads and Tails in a T-Chart.  Then you switched roles and completed another 50 flips.

3.   I reviewed Monday’s HW with hours 2-7.  I did not need to review this with 1st hour – because we reviewed it Tuesday  (due to the internet outage that morning).  4th Hour Band Students:  You REALLY need to make sure you look at the microphotographs of the Cell Cycle from that post, and try to explain and identify the phases in the cell cycle and what is occurring in each step.

4.  Next, each class completed the Sponge Bob Punnett Square Practice worksheet (front side).  You completed problems as we discussed these and then also completed problems with your table-partner.

5.  In some classes we then had time to complete an extra Punnett Square practice problem or 2.  I will post a couple of practice problems/ website link on the notes page if you would like extra help or extra practice with P Square problems.

6.  I reminded everyone that this week- as we are learning about Genetics & Heredity, the focus is on the introduction and understanding of these concepts.  It is not about memorizing everything all at once, or even applying and analyzing concepts.  For this reason, make sure to have your science binder with your G & H notes, reading frames, and Phenomena section of your notebooks for the quiz tomorrow.

 

Homework ~ Take Away Tasks:

  1.  Make sure to select a dragon drawing (or complete a simple drawing) for tomorrow.  Details about this?  See Wed. HW.
  2. Complete Punnett Square WS# 1 – FRont Side Only!