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Wordbank. Stigma Anther Pistil Stamen Ovule Sepal filament Petal Ovary Style Receptacle. Do Now. 1. Put the following events in order ____ a. The pollen fertilizes the ovule and together they form a seed ____ b. The pollinator lands on the first flower
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Wordbank • Stigma • Anther • Pistil • Stamen • Ovule • Sepal • filament • Petal • Ovary • Style • Receptacle
Do Now 1. Put the following events in order ____ a. The pollen fertilizes the ovule and together they form a seed ____ b. The pollinator lands on the first flower ____ c. The pollen enters the ovary of the second flower ____ d. The pollen grows down the style of the second flower ____ e. The pollinator leaves the first flower and lands on the second flower ____ f. The pollen from the anther of the first flower gets stuck to the pollinator ____ g. The stigma of the second flower catches pollen off the bee ____ h. The ovary of the second flower turns into a fruit to protect the seeds and help the spread the seeds
Do Now:On your own Piece of paper:1. Define the terms on the left 2. Explain Pollination in your own words Male Parts • Stamen: • Anther: • Filament Female Parts: • Pistil • Stigma • Style • Ovary • Ovules
Thursday/Friday, February 6/7th, 2013 Your Learning Goal: Students will create a comic strip illustrating the way flowers are pollinated Standard: 5f Students know the structures and processes by which flowering plants generate pollen, ovules, seeds, and fruits. Table of Contents: 5.7 Pollination Agenda: • Do Now • Correct Test • Pollination Notes • Pollination Videos • Stations Homework: Due 2/10 & 2/11: 5.7 Pollination Reading Due 2/12: Pollination Comic Strip
5.8 Pollination Lesson 2 Do Now Learning Goal Standard HW • Define the following: Male Parts • Stamen: • Anther: • Filament • Female Parts: • Pistil • Stigma • Style • Ovary • Ovules • Explain the process of Pollination in your own words: • Students will create a comic strip illustrating the way flowers are pollinated • 5.F Students know the structures and processes by which flowering plants produce pollen, ovules, seeds and fruit • Due: 2/13 and 2/14: Pollination Brain Pop
Monday/, February 10/11th, 2013 Your Learning Goal: Students will create a comic strip illustrating the way flowers are pollinated Standard: 5f Students know the structures and processes by which flowering plants generate pollen, ovules, seeds, and fruits. Table of Contents:5.8 Pollination 2 Agenda: • Do Now • Work on Projects • Direct Instruction Rotation • Scholar dollar Brainpops Homework: Due 2/12: Pollination Comic Strip
Wednesday, February 5th, 2013 February Objective: Students will pass the flower parts test with a 3 or higher Focus Question: How can a flower reproduce by itself? Standard:5f Students know the structures and processes by which flowering plants generate pollen, ovules, seeds, and fruits. Table of Contents: 5.6 Flower Parts Test Homework: Finish Projects: Reduced points Agenda: • Do-Now • Quiz • Correct Quiz
Stations • Direct Instruction: Focus Questions. Go over tests and projects. Review sequence of pollination. • Group station: Pollination Comic Strip: Can work independently or with 1 partner • Independent Station: Pollination Reading
Quiz Score conversions Number correct Score of 4 11: 2.2 12: 2.4 13: 2.6 14: 2.8 15: 3 16: 3.2 17: 3.4 18: 3.6 19`: 3.8 20: 4 • 1: .2 • 2: .4 • 3: .6 • 4: .8 • 5: 1.: • 6: 1.2 • 7: 1.4 • 8: 1.6 • 9: 1.8 • 10: 2
It’s been a minute since we’ve watched videos… MY B dooods How fruits are made http://www.youtube.com/watch?v=bwCpQflmQG4 Pollination is really pretty http://www.youtube.com/watch?v=xHkq1edcbk4 BrainPop http://www.brainpop.com/science/cellularlifeandgenetics/pollination/
How does pollination happen? • The anther (the male reproductive part) creates pollen. • The pollen must transfer to the stigma (a female reproductive part) • Pollinators can cary the pollen from one flower to the other • The pollen tubes grow down the style (the stalk of the pistil) into the ovary • The pollen tubes reach the ovules in the ovary. • The ovules are the female gamete: eggs • When the ovules are fertilized, they grow into seeds • In some flowers, the ovary turns into fruits to protect the seeds and help spread the seeds.
Review: In 3 sentences, write out how pollination works. If you are not sure, guess!
The pistil is the female part and the stamen is the male part. The pistil has the ovule, the flower egg, and is the place where the seed forms. The stamen has the pollen, the flower sperm
Stigma TPS • Why do you think the stigma is longer and above the anthers?
The pistil is longer than the stamen • The pistil is longer than the stamen so the pistil can catch pollen out of the air. Also the pistil can curl down and grab pollen off its own anthers if it needs.
Which one do you think is better? Self-pollination or cross-pollination • Self pollination is when the anther of the same flower gives pollen to its own pistil • Cross pollination is when the anther of one flower gives pollen to the pistil of a different flower.
Cross pollination is better! • Every organism gets half their genes from their mother and the other half from their father. • Sometimes a gene is bad. Having 2 different sets of genes means your likely to have 1 good version of every gene. • If a mother has a bad gene for blood clotting, the father’s good gene could hide it. If the mother was the only one giving genes to the offspring, then the offspring would have the bad gene.
POSTERS • NEED TO REVIEW WHO HAS TURNED THEIRS IN!
Which flower is the male? How can you tell?Imperfect or Diocieous
Which flower is the male? How can you tell?Imperfect or Diocieous
What would happen to a plant population if a disease wiped out all insects in its habitat?
What would happen to a plant population if a disease wiped out all insects in its habitat? • Many plants would die, especially those that need insects to pollinate them. The plants that survived would evolve, through natural selection to find new ways to pollinate. They would adapt, developing new features that help them pollinate with wind, birds, or other pollinators.