LO : Students will be able to explain and diagram the phases 1 of the cell cycle.

1. 1 Phases - The steps in a process. LO: Students will be able to explain and diagram the phases1 of the cell cycle. APK: Last unit we learned about the cell theory and cell organelles, including the nucleus. • Connect APK to LO: • Students, you already know that all cells come from preexisting cells. Today, we will learn how that happens. CFU: What are the statements of the cell theory? CFU: What is the function of the nucleus?

2. Concept Development: • The cell cycle describes the growth, development, and reproduction of a cell. • The phases1 of the cell cycle are: • Phase 1: Interphase • Phase 2: Mitosis • Phase 3: Cytokenisis 1 Phases - The steps in a process. 207 230 184 ---- 187 191 164 199 235 252 ---- 176 205 213 How does one single cell become a complex organism, like a human? (Check for Understanding) 1: Why are the underlined words a better word choice? (T/S-PS <SF>-NV<3>) SF: “_____ is a better word choice than ____ because _____.” 2: In your own words, what is proper word choice? (T/S-PS <SF>-NV<2>-V) SF: “Proper word choice is _____.”

3. Foldable Skill Development/Guided Practice: 2replicate – make an identical copy States Why do some powers belong only to the states? 19. The Constitution was written to limit the power of the federal government. 20. The Constitution does not spell out specific power of the states because the writers of the Constitution wanted the states to keep some sovereignty. 21. So, it says that the states retain, or keep, any powers that are not given to the national government. 22. For instance, the Constitution says nothing about schools, marriage, establishing local governments, owning property,licensingdoctors and lawyers, or most crimes. 23. The states make the laws in these areas of life. 24. The Constitution does, however, outline the responsibilities of states to each other. Article IV says that each state must give “full Faith and Credit”1 to the laws and court decisions of other states. 25. This means accepting other states’ laws and court decisions as legal. 26. For example, a driver’s license issued in one state is legal in every state. 27. Similarly, states must obey legal contracts that people have made in other states. 28. Like the commerce clause, the full faith and credit provision brings stability to business dealings.29. States are also required to help each other track down fleeing criminals.30.Criminals cannot escape justice by fleeing to another state. 31. Finally, the Constitution does not allow one state to discriminate2 unreasonably against a citizen of another state. 32. A state may not, for example, refuse to let a child who was born in another state attend its public schools. 1 must recognize it 2 to treat differently I model this one: Read and underline/highlight important information. Fill-in the closed notes. CFU: “Students Did I (Mr. Chavez) identify important information to complete the notes.” What are the 3 phases of the cell cycle? What is the cell cycle? The cell cycle describes the __________________,and___________of a cell. The cell cycle describes the growth, development ,andreproductionof a cell. Interphase Mitosis Cytokinesis CFU CFU Shared Why are some powers shared? 33. Federal and state governments also share some powers because there are powers both groups need to function. 34. Combined, the federal and state governments share power because it is easier to do things like raise taxes for public projects. 35. Also, both levels of government can build roads, borrow money, and regulate education. 36. If you think the sharing of power, sounds complicated, you are right. 37. Consider presidential elections. Congress sets the date for national elections, while the states register voters and run the elections. 38. States count the ballots, while the national government organizes the Electoral College vote, which determines who will be president. 39. Federalism is also complicated because the Constitution provides only a general framework for the sharing of powers. 40. There was no way for the framers to spell out rules for every possible situation. 41. The federal system continues to evolve through new laws, court decisions, and constitutional amendments. Together, read this one: We read and underline/highlight important information. Fill-in the closed notes. CFU: “Students Did I (Mr. Chavez) identify important information to complete the notes.” *During G1 phase a cell _____ and __________________________ *During S phase chromosomes _______ and ______________ form. *During G2 phase ________replicate. *During G1 phase a cell grows and carries out its cellular functions. *During S phase chromosomes replicate and sister chromatids form. *During G2 phase organelles replicate. CFU

4. Skill Development/Guided Practice: 2replicate – make an identical copy States Why do some powers belong only to the states? 19. The Constitution was written to limit the power of the federal government. 20. The Constitution does not spell out specific power of the states because the writers of the Constitution wanted the states to keep some sovereignty. 21. So, it says that the states retain, or keep, any powers that are not given to the national government. 22. For instance, the Constitution says nothing about schools, marriage, establishing local governments, owning property,licensingdoctors and lawyers, or most crimes. 23. The states make the laws in these areas of life. 24. The Constitution does, however, outline the responsibilities of states to each other. Article IV says that each state must give “full Faith and Credit”1 to the laws and court decisions of other states. 25. This means accepting other states’ laws and court decisions as legal. 26. For example, a driver’s license issued in one state is legal in every state. 27. Similarly, states must obey legal contracts that people have made in other states. 28. Like the commerce clause, the full faith and credit provision brings stability to business dealings.29. States are also required to help each other track down fleeing criminals.30.Criminals cannot escape justice by fleeing to another state. 31. Finally, the Constitution does not allow one state to discriminate2 unreasonably against a citizen of another state. 32. A state may not, for example, refuse to let a child who was born in another state attend its public schools. 1 must recognize it 2 to treat differently The first phase of mitosis is prophase. The DNA of the chromosome twists into tight coils. The membrane around the nucleus breaks apart. The ____ phase of mitosis is prophase. The DNA of the ___________twists into tight coils. The _________around the _______ breaks apart. CFU Shared Why are some powers shared? 33. Federal and state governments also share some powers because there are powers both groups need to function. 34. Combined, the federal and state governments share power because it is easier to do things like raise taxes for public projects. 35. Also, both levels of government can build roads, borrow money, and regulate education. 36. If you think the sharing of power, sounds complicated, you are right. 37. Consider presidential elections. Congress sets the date for national elections, while the states register voters and run the elections. 38. States count the ballots, while the national government organizes the Electoral College vote, which determines who will be president. 39. Federalism is also complicated because the Constitution provides only a general framework for the sharing of powers. 40. There was no way for the framers to spell out rules for every possible situation. 41. The federal system continues to evolve through new laws, court decisions, and constitutional amendments. Thereplicatedchromosomes and sisterchromatids line up at the center of the cell. Spindle fibers push and pull the chromatids into position. The________chromosomes and ____ __________line up at the center of the cell. ________ __ push and pull the chromatids into position. What is the cell cycle? CFU

5. Skill Development/Guided Practice: 2replicate – make an identical copy States Why do some powers belong only to the states? 19. The Constitution was written to limit the power of the federal government. 20. The Constitution does not spell out specific power of the states because the writers of the Constitution wanted the states to keep some sovereignty. 21. So, it says that the states retain, or keep, any powers that are not given to the national government. 22. For instance, the Constitution says nothing about schools, marriage, establishing local governments, owning property,licensingdoctors and lawyers, or most crimes. 23. The states make the laws in these areas of life. 24. The Constitution does, however, outline the responsibilities of states to each other. Article IV says that each state must give “full Faith and Credit”1 to the laws and court decisions of other states. 25. This means accepting other states’ laws and court decisions as legal. 26. For example, a driver’s license issued in one state is legal in every state. 27. Similarly, states must obey legal contracts that people have made in other states. 28. Like the commerce clause, the full faith and credit provision brings stability to business dealings.29. States are also required to help each other track down fleeing criminals.30.Criminals cannot escape justice by fleeing to another state. 31. Finally, the Constitution does not allow one state to discriminate2 unreasonably against a citizen of another state. 32. A state may not, for example, refuse to let a child who was born in another state attend its public schools. 1 must recognize it 2 to treat differently The replicated chromosomes begin to separate. Spindle fibers pull chromatids to opposite ends of the cell. The replicated chromosomes begin to separate. Spindle fibers ______________ _____________________. CFU A membrane forms around each set of chromosomes and they become less tightly coiled. Two identical nuclei are formed. A membrane forms around each set of chromosomes and they __________ ___________. ________________are formed. Shared Why are some powers shared? 33. Federal and state governments also share some powers because there are powers both groups need to function. 34. Combined, the federal and state governments share power because it is easier to do things like raise taxes for public projects. 35. Also, both levels of government can build roads, borrow money, and regulate education. 36. If you think the sharing of power, sounds complicated, you are right. 37. Consider presidential elections. Congress sets the date for national elections, while the states register voters and run the elections. 38. States count the ballots, while the national government organizes the Electoral College vote, which determines who will be president. 39. Federalism is also complicated because the Constitution provides only a general framework for the sharing of powers. 40. There was no way for the framers to spell out rules for every possible situation. 41. The federal system continues to evolve through new laws, court decisions, and constitutional amendments. CFU

6. Skill Development/Guided Practice: 2replicate – make an identical copy States Why do some powers belong only to the states? 19. The Constitution was written to limit the power of the federal government. 20. The Constitution does not spell out specific power of the states because the writers of the Constitution wanted the states to keep some sovereignty. 21. So, it says that the states retain, or keep, any powers that are not given to the national government. 22. For instance, the Constitution says nothing about schools, marriage, establishing local governments, owning property,licensingdoctors and lawyers, or most crimes. 23. The states make the laws in these areas of life. 24. The Constitution does, however, outline the responsibilities of states to each other. Article IV says that each state must give “full Faith and Credit”1 to the laws and court decisions of other states. 25. This means accepting other states’ laws and court decisions as legal. 26. For example, a driver’s license issued in one state is legal in every state. 27. Similarly, states must obey legal contracts that people have made in other states. 28. Like the commerce clause, the full faith and credit provision brings stability to business dealings.29. States are also required to help each other track down fleeing criminals.30.Criminals cannot escape justice by fleeing to another state. 31. Finally, the Constitution does not allow one state to discriminate2 unreasonably against a citizen of another state. 32. A state may not, for example, refuse to let a child who was born in another state attend its public schools. 1 must recognize it 2 to treat differently Cytokinesis is the final phase of cell division. The cell membrane squeezes inward dividing the cell into ___________ _____________. Cytokinesis is the final phase of cell division. The cell membrane squeezes inward dividing the cell into two identical daughter cells. CFU Shared Why are some powers shared? 33. Federal and state governments also share some powers because there are powers both groups need to function. 34. Combined, the federal and state governments share power because it is easier to do things like raise taxes for public projects. 35. Also, both levels of government can build roads, borrow money, and regulate education. 36. If you think the sharing of power, sounds complicated, you are right. 37. Consider presidential elections. Congress sets the date for national elections, while the states register voters and run the elections. 38. States count the ballots, while the national government organizes the Electoral College vote, which determines who will be president. 39. Federalism is also complicated because the Constitution provides only a general framework for the sharing of powers. 40. There was no way for the framers to spell out rules for every possible situation. 41. The federal system continues to evolve through new laws, court decisions, and constitutional amendments.

7. Relevance: So why is knowing about mitosis important?? 1. Understanding mitosis provides us with a mechanism (the how) behind organisms evolving from unicellular to multicellular organisms. 2. Understanding mitosis provides a foundation for meiosis (next lesson). 3. Science jokes are awesome!

8. Closure / Exit Ticket:

9. Do Not Print For Students • Delivery Strategies Legend – Consider putting these symbols as reminders to use the • strategies at first. You can delete them as you get used to the pattern of the delivery.