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Crayfish classroom slides

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Crayfish have identifiable structures that serve different functions for survival. These include eyes, antennae, walking legs, a tail, and a carapace. Males and females can be differentiated based on structures like swimmerets and pincers. To thrive, crayfish require a habitat that provides food, clean water, shelter, and space. In the classroom, crayfish were kept in tubs with elodea plants, cat food, and plastic cups for shelter. Through observations, students learned crayfish behaviors like hiding in shelters. Crayfish were found to be territorial and would defend their preferred hiding places and locations in the habitat.

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Structures of Life Cray鍖sh
BIG IDEA: All living organisms have identi鍖able structures and characteristics that serve different functions in growth, survival, and reproduction.
Guiding Questions What are the structures of cray鍖sh? What does a cray鍖sh need to survive? What are observable cray鍖sh behaviors?
Word Wall: cray鍖sh structures behaviors organism crustacean
Some of us may have never seen a cray鍖sh up close before so lets take a couple of minutes to make a few observations. Cray鍖sh are a living organism so we need to treat them with respect. They will not harm you, but they can pinch you if not handled correctly. For now we are just going to observe the cray鍖sh and not handle them. Background
Focus What are the structures and behaviors of cray鍖sh? Discuss with your group what we need to investigate and record it as the FOCUS QUESTION. This is the problem we are going to investigate and solve.
Prediction: Now that we have a focus question, discuss with your group what you think a possible answer might be. Record your prediction in your scientist notebook and be ready to share your ideas with the class. Prediction: I think that the structures of a cray鍖sh are______________________________________________________ because _________________________________________________________
Today we are going to begin by examining our cray鍖sh to learn more about them. It is OK for cray鍖sh to be out of the water for a short period of time. We dont want to keep them out of the water so long that they dry out. It would also be bad for the cray鍖sh if we drop them on a hard surface. This is the best way to pick up a cray鍖sh. Part I: Structures You can also use a spoon and 村 liter container if you dont want to touch one.
What are some of the interesting parts that you notice on your cray鍖sh? Parts of the cray鍖sh are their structures. Just like the parts of the plants and seeds are called structures. We are going to keep a list of the structures that we observe in our science notebooks. Part I: Structures
Cray鍖sh Structures Part I: Structures Do cray鍖sh have Yes or No How many Do cray鍖sh have eyes? How many? Do cray鍖sh have ears? How many? Do cray鍖sh have walking legs? How many? Do cray鍖sh have antennae? How many? Do cray鍖sh have tail 鍖aps? How many parts? Do cray鍖sh have pincers? How many? Do cray鍖sh have joints? How many? Do cray鍖sh have mouths? How many? Do cray鍖sh tails bend? How many places? Do cray鍖sh have bristles? Where? Do cray鍖sh have bumps? Where? What other cray鍖sh structures do you observe?
Some of you were able to notice differences in your cray鍖sh. They were not all the same. Some of these differences may be due to age or handicapping Loss of an antennae or leg. What else could cause noticeable differences in our cray鍖sh? Gender: Male and female cray鍖sh will have different structures We can compare what we saw with our cray鍖sh diagram and identify these different structures. Can you predict the gender of your cray鍖sh? Part I: Structures
Part I: Structures Female Cray鍖sh Male Cray鍖sh 1. Long antennae 2. Short antenna 3. Pincer 4. Eye 5. Mouth 6. Walking leg 7. Carapace 8. Short swimmeret 9. Modi鍖ed swimmeret 10.Egg pore 11.Long swimmeret
Word Wall: carapace swimmeret pincer egg pore antenna bristles
How can you tell the difference between a male and female cray鍖sh? Part I: Structures Male Cray鍖sh Female Cray鍖sh First pair of swimmerets is modi鍖ed Bigger pincers Smaller pincers Narrower tales Wider tails No egg pores Egg pores Shorter swimmerets Longer swimmerets
What do we need to know about cray鍖sh in order to keep them in our classroom? Most living organisms require a certain amount of: Food What will they eat, how much, how often? Water How deep, what temperature, how clean? Shelter Do they need hiding places or rocks? Air How will they get air to breath? Space Should they live together? Part II: Habitat
The place where an animal lives is called a habitat. In our classroom the cray鍖sh habitat will be these large tubs. Part II: Habitat Natural Habitat Classroom Habitat In their natural habitat, cray鍖sh 鍖nd their own food and shelter. In our classroom, they must be fed and given a safe place to live.
Part II: Habitat Classroom Habitat It will be your groups responsibility to care for the cray鍖sh habitat and make observations. Our cray鍖sh will eat elodea and cat food Cray鍖sh will be fed cat food in a separate basin The plastic cups are cray鍖sh shelter Draw and Label your Habitat
When we observe what cray鍖sh do, we are observing their behaviors. Part III: Behaviors Remember To learn more about what cray鍖sh do, we need to observe them over the next few weeks. Lets begin by observing the cray鍖sh when they are removed from their habitat and placed in a basin. What do they do? How do they behave? Record your observations in your science notebook and be prepared to share what your group observed with the rest of the class.
Part III: Behaviors Cray鍖sh Shelters How have you observed cray鍖sh using their houses in the classroom habitat? Cray鍖sh use their houses for shelter Do all cray鍖sh hide in houses? Does each cray鍖sh have its own house that it always goes into? Do you ever see more than one cray鍖sh hide in the same house?
Part III: Behaviors This week your groups task is to set-up an investigation to 鍖nd out how your cray鍖sh use their houses. Your plan must include these elements: Speci鍖c locations of the houses A way to Identify each individual cray鍖sh Location of the cray鍖sh during the observation
Part III: Behaviors Collecting Data: Your observations should be recorded in your scientist notebook. Identify the Date and Time of each observation. Include detailed drawings with labels.
Part III: Behaviors Cray鍖sh Shelters What did you learn from your investigation about cray鍖sh behaviors and their use of shelters? Do cray鍖sh like to share their shelter with other cray鍖sh? Will they defend their shelter or place in their habitat? Cray鍖sh are territorial creatures. They will claim a location in their habitat and defend it against others. The biggest or strongest cray鍖sh will normally claim the territory of its choice. How do you Know?
Making Meaning What are some of the observable structures of cray鍖sh? What does a cray鍖sh need for a healthy habitat? What are some of the behaviors you observed? How are cray鍖sh territorial?
Based on what you have learned from your investigation of cray鍖sh, you need to record some claims and evidence statements in your science notebook Your evidence must be based on your data and observations! I claim that I know this because Possible Examples: I claim that cray鍖sh have observable structures. I know this because I claim that cray鍖sh need _______________________________to survive. I know this because I claim that cray鍖sh have behaviors that are observable. I know this because Claims and Evidence:
11/8 2011 REFLECTION AND CONCLUSION What did you learn? What really surprised you? What new questions do you have? What would you like to know more about?

More Related Content

Crayfish classroom slides

  • 2. BIG IDEA: All living organisms have identi鍖able structures and characteristics that serve different functions in growth, survival, and reproduction.
  • 3. Guiding Questions What are the structures of cray鍖sh? What does a cray鍖sh need to survive? What are observable cray鍖sh behaviors?
  • 5. Some of us may have never seen a cray鍖sh up close before so lets take a couple of minutes to make a few observations. Cray鍖sh are a living organism so we need to treat them with respect. They will not harm you, but they can pinch you if not handled correctly. For now we are just going to observe the cray鍖sh and not handle them. Background
  • 6. Focus What are the structures and behaviors of cray鍖sh? Discuss with your group what we need to investigate and record it as the FOCUS QUESTION. This is the problem we are going to investigate and solve.
  • 7. Prediction: Now that we have a focus question, discuss with your group what you think a possible answer might be. Record your prediction in your scientist notebook and be ready to share your ideas with the class. Prediction: I think that the structures of a cray鍖sh are______________________________________________________ because _________________________________________________________
  • 8. Today we are going to begin by examining our cray鍖sh to learn more about them. It is OK for cray鍖sh to be out of the water for a short period of time. We dont want to keep them out of the water so long that they dry out. It would also be bad for the cray鍖sh if we drop them on a hard surface. This is the best way to pick up a cray鍖sh. Part I: Structures You can also use a spoon and 村 liter container if you dont want to touch one.
  • 9. What are some of the interesting parts that you notice on your cray鍖sh? Parts of the cray鍖sh are their structures. Just like the parts of the plants and seeds are called structures. We are going to keep a list of the structures that we observe in our science notebooks. Part I: Structures
  • 10. Cray鍖sh Structures Part I: Structures Do cray鍖sh have Yes or No How many Do cray鍖sh have eyes? How many? Do cray鍖sh have ears? How many? Do cray鍖sh have walking legs? How many? Do cray鍖sh have antennae? How many? Do cray鍖sh have tail 鍖aps? How many parts? Do cray鍖sh have pincers? How many? Do cray鍖sh have joints? How many? Do cray鍖sh have mouths? How many? Do cray鍖sh tails bend? How many places? Do cray鍖sh have bristles? Where? Do cray鍖sh have bumps? Where? What other cray鍖sh structures do you observe?
  • 11. Some of you were able to notice differences in your cray鍖sh. They were not all the same. Some of these differences may be due to age or handicapping Loss of an antennae or leg. What else could cause noticeable differences in our cray鍖sh? Gender: Male and female cray鍖sh will have different structures We can compare what we saw with our cray鍖sh diagram and identify these different structures. Can you predict the gender of your cray鍖sh? Part I: Structures
  • 12. Part I: Structures Female Cray鍖sh Male Cray鍖sh 1. Long antennae 2. Short antenna 3. Pincer 4. Eye 5. Mouth 6. Walking leg 7. Carapace 8. Short swimmeret 9. Modi鍖ed swimmeret 10.Egg pore 11.Long swimmeret
  • 14. How can you tell the difference between a male and female cray鍖sh? Part I: Structures Male Cray鍖sh Female Cray鍖sh First pair of swimmerets is modi鍖ed Bigger pincers Smaller pincers Narrower tales Wider tails No egg pores Egg pores Shorter swimmerets Longer swimmerets
  • 15. What do we need to know about cray鍖sh in order to keep them in our classroom? Most living organisms require a certain amount of: Food What will they eat, how much, how often? Water How deep, what temperature, how clean? Shelter Do they need hiding places or rocks? Air How will they get air to breath? Space Should they live together? Part II: Habitat
  • 16. The place where an animal lives is called a habitat. In our classroom the cray鍖sh habitat will be these large tubs. Part II: Habitat Natural Habitat Classroom Habitat In their natural habitat, cray鍖sh 鍖nd their own food and shelter. In our classroom, they must be fed and given a safe place to live.
  • 17. Part II: Habitat Classroom Habitat It will be your groups responsibility to care for the cray鍖sh habitat and make observations. Our cray鍖sh will eat elodea and cat food Cray鍖sh will be fed cat food in a separate basin The plastic cups are cray鍖sh shelter Draw and Label your Habitat
  • 18. When we observe what cray鍖sh do, we are observing their behaviors. Part III: Behaviors Remember To learn more about what cray鍖sh do, we need to observe them over the next few weeks. Lets begin by observing the cray鍖sh when they are removed from their habitat and placed in a basin. What do they do? How do they behave? Record your observations in your science notebook and be prepared to share what your group observed with the rest of the class.
  • 19. Part III: Behaviors Cray鍖sh Shelters How have you observed cray鍖sh using their houses in the classroom habitat? Cray鍖sh use their houses for shelter Do all cray鍖sh hide in houses? Does each cray鍖sh have its own house that it always goes into? Do you ever see more than one cray鍖sh hide in the same house?
  • 20. Part III: Behaviors This week your groups task is to set-up an investigation to 鍖nd out how your cray鍖sh use their houses. Your plan must include these elements: Speci鍖c locations of the houses A way to Identify each individual cray鍖sh Location of the cray鍖sh during the observation
  • 21. Part III: Behaviors Collecting Data: Your observations should be recorded in your scientist notebook. Identify the Date and Time of each observation. Include detailed drawings with labels.
  • 22. Part III: Behaviors Cray鍖sh Shelters What did you learn from your investigation about cray鍖sh behaviors and their use of shelters? Do cray鍖sh like to share their shelter with other cray鍖sh? Will they defend their shelter or place in their habitat? Cray鍖sh are territorial creatures. They will claim a location in their habitat and defend it against others. The biggest or strongest cray鍖sh will normally claim the territory of its choice. How do you Know?
  • 23. Making Meaning What are some of the observable structures of cray鍖sh? What does a cray鍖sh need for a healthy habitat? What are some of the behaviors you observed? How are cray鍖sh territorial?
  • 24. Based on what you have learned from your investigation of cray鍖sh, you need to record some claims and evidence statements in your science notebook Your evidence must be based on your data and observations! I claim that I know this because Possible Examples: I claim that cray鍖sh have observable structures. I know this because I claim that cray鍖sh need _______________________________to survive. I know this because I claim that cray鍖sh have behaviors that are observable. I know this because Claims and Evidence:
  • 25. 11/8 2011 REFLECTION AND CONCLUSION What did you learn? What really surprised you? What new questions do you have? What would you like to know more about?