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10.25_6thSci_TR 1.2

Last updated almost 3 years ago
11 questions
Objective and Slides
TR 1.2: Introducing Spider Silk Research

OBJECTIVE: KWBAT begin their investigation of how traits can vary between parents and offspring and among siblings by obtaining information from a video and a digital model about variation in silk flexibility among spiders.
Part 1

Part 1: Do Now

Read each statement and then decide if you agree or disagree. You are not expected to know the right answers, and you will have a chance to review your responses later in the unit and change your thinking.
0

Categorize each of the statements to the AGREE or DISAGREE categories.

Take a guess!

  • Traits, such as your hair or eye color, are determined by the proteins made by cells in your body.
  • There are two genes that decide each of your traits and those genes are always exactly alike.
  • An offspring cannot have a trait if neither of its parents have it.
  • All traits are determined by the experiences an organism has or the environment it lives in. For example, you will have the trait of being a strong swimmer if you swim a lot and live near the water.
  • Each person in a family has the same traits. There are no differences in traits between parents and offspring or among siblings.
  • Agree
  • Disagree
0

Explain why you agree or disagree with the statement: Each person in a family has the same traits. There are no differences in traits between parents and offspring or among siblings.

I (agreed / disagree) because….

Part 2

Part 2: Introducing Darwin's Bark Spiders

0

FOCUS QUESTION: Based on the video and textual evidence, explain why scientists are interested in spider silk.

1

What kind of spider silk is the most ideal to work with?
Why?

0

Predict: Why do spiders of the same family have different types of silk flexibility?

1

What are TWO observations you have from this Darwin's Bark Spider Family Tree?

Sentence starter:
One observation I have is..
Another is..

Feature: a characteristic that all members of a species have.

Trait: a specific characteristic of an individual organism
2

Categorize the items based on the defintions above.

  • Skin Color
  • Silk Flexibility
  • Medium Silk Flexibility
  • High Silk Flexibility

  • Trait

  • Feature

0

Are there similarities and differences between parents, their offspring and siblings?

Explain your answer.

0

Which claim do you think answers the question so far?

Part 3

Part 3: Exploring the Sim


Link to Sim:

https://learning.amplify.com/traitsandreproduction/




1

  1. Launch the Traits and Reproduction Simulation
  2. Click on Otis and drag and drop on Anne
  3. The screen will change. Click the arrow below that says “Create Reproductive Cells.”
  4. On the next screen, click the arrow below that says "Randomly Fertilize.” DO NOT PRESS MUTATE.
  5. Select a feature (such as silk flexibility or size) from the Feature menu bar to record the feature for offsprings A-D.
  6. Record data below.

Part 4

Part 4: Exit Ticket

1

Discuss whether you agree or disagree with the claim below. Use evidence from the today’s lesson to support your response. TWO SENTENCES MINIMUM!

CLAIM: Each organism in a family has the same traits. There are no differences between parents and offspring or among siblings.

Sentence Stem:
I (agree/disagree) with the claim because...

Finished Early?