Flower and its structure. Presentation "Flowers" (Riddles in pictures) presentation for a lesson on the world around us (senior, preparatory group) Ready-made presentation on the topic of flowers
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Naberezhnye Chelny Institute of Social and pedagogical technologies and resources. Faculty of Advanced Training. Topic: “Designing a lesson in the Federal State Educational Standard” Performed by biology teacher I qualification category. MAOU "Gymnasium No. 76" Naberezhnye Chelny Republic of Tatarstan Akhmetova Elena Nikolaevna Naberezhnye Chelny 2013
Class: 6th grade Lesson topic: “Flower” The purpose of the lesson is to study the structure and functions of a flower. Lesson objectives - Educational: to develop students’ knowledge about a flower as an organ seed propagation angiosperms; study the structural features and diversity of flowers; form the concepts of “both - and unisexual flowers”, “mono- and dioecious plants”. Developmental: develop practical skills in recognizing flowers various plants; work with a textbook; generalize the knowledge gained, draw independent conclusions. Educational: to cultivate love and respect for nature, flowering plants; develop curiosity and the desire for knowledge. Formed UUD: cognitive - establishing cause-and-effect relationships, generalization, putting forward hypotheses, working with text; regulatory - goal setting, adequate self-assessment of performed actions, self-regulation of emotional state; communicative - formulating one’s own opinion, the ability to listen to the opinions of others, organizing group activities in cooperation, mutual control and mutual assistance.
Equipment: PC, projector, presentations, textbooks, flower models: cherry, potato, pea, blooming houseplants, table “Structure of a flower”, terms on the topic, herbarium material, drawn parts of a flower, test tasks. Lesson type: learning new material. Teaching methods: conversation, problem-search, explanatory-illustrative, research. Lesson type: lesson on learning new knowledge. Educational and methodological literature: UMK line V.V. Pasechnik.
What similarities are visible between a typical shoot and modified shoots? What structure does a potato tuber have? What proves that the onion is a shoot? What plants have modified shoots and rhizomes? How does a person use modified shoots?
2. Who can solve the crossword puzzle faster??? 1. Modified underground escape, formed at the top of the stolon, storing nutrients in the thickened stem part and serving for vegetative propagation. Bears axillary buds 2. A shoot in which the stem, leaves, and buds irreversibly change shape and function, which is a consequence of adaptive changes during evolution 3. A shortened shoot, the stem part of which is represented by a flat thickening - the bottom. Nutrients are stored in succulent scale-like leaves 4. A modified perennial underground shoot with nodes, internodes, scale-like leaves and buds, used for vegetative propagation, renewal and storage nutrients 5. An elongated creeping annual shoot forming a tuber at the top
1. A modified underground shoot formed at the top of the stolon, storing nutrients in the thickened stem part and serving for vegetative propagation. Bears axillary buds 2. A shoot in which the stem, leaves, and buds irreversibly change shape and function, which is a consequence of adaptive changes during evolution 3. A shortened shoot, the stem part of which is represented by a flat thickening - the bottom. Nutrients are stored in succulent scale-like leaves 4. A modified perennial underground shoot with nodes, internodes, scale-like leaves and buds, used for vegetative propagation, renewal and storage of nutrients 5. An elongated creeping annual shoot forming a tuber at the top 2. Who can solve the crossword puzzle faster? ???
3. Test. 1. A potato tuber is: A) a root B) a modified root C) a modified underground shoot. 2. Barberry thorn - plant adaptation: A) to reduce moisture evaporation; B) to preservation from being eaten by animals C) to both. 3. The bottom of the bulb is: A) a shortened stem B) a modified leaf C) a modified root 4. The spines of cacti are: A) modified shoots B) modified leaves C) special outgrowths of stem skin cells. 5. An onion bulb is: A) a stem B) a modified underground shoot C) a modified root. 6. Rhizome is a modified: A) lateral root B) leaf C) shoot Answers: 1 – B 2 – B 3 – A 4 – B 5 – B 6 - C Evaluation criteria “5” - all answers are correct “4” - 5 - 4 correct answers "3" - 3 correct answers "2" - 2 correct answers
“There is a cherry blossom castle on a high hill. The fortress wall of the castle is two-row. In the first row around the castle there are five green battlements, and in the second there are five large white walls. There is a pillar in the center of the castle, and fluffy pillows swing around on thin legs.” What kind of castle is this?
Fill in the diagram Plant organs vegetative generative root shoot flower fruit seed stem leaf bud
Lesson objectives Types of flowers Flower structure Perianth Variety of flowers Flower formula Lesson topic: “Flower”
They are more beautiful than anything that nature gives us on Earth. But her gift is priceless, For all arts the flower is an unchanging example. Jacques Delisle
Draw the structure of the flower and label its parts.
Guess the riddle: There is a cup - not for water There is a wreath - not for a girl Perianth
Types of perianth Double Simple Corolla Calyx All leaves are the same
Types of flowers wrong correct
shoot flower perianth pistil stamen Protection, Attraction of insects Formation of fruits and seeds Formation of pollen with sperm Structure Function Diagram “Fish”
Guess the riddle: Although the flower bloomed in required deadline But the trouble is, the male flower did not bear fruit
Flowers Unisexual Bisexual Pistillate female ♀ Staminate male ♂ Unisexual and bisexual
Monoecious and dioecious Flowers Monoecious Dioecious
H – calyx, L – petals, T – stamen, P – pistil, O – simple perianth – not the right flower, * - regular flower, - pistillate (female) flowers, - staminate (male) flowers, - bisexual flowers () - fused parts of the flower, numbers - number of flower parts Flower formula Cherry flower * H 5 L 5 T P 1 8
1. A flower is: a) a bright corolla b) a pistil and stamens b) a perianth d) a style and stigma 2. The main parts of a flower: a) petals and sepals b) pistil and stamens 3. Often brightly colored: a) sepals c) petals corolla b) stamens d) pistil 4. Dioecious flowers, which: a) have stamens and a pistil b) have petals and sepals c) have only stamens d) have only a pistil Test Answers: 1-B; 2-B; 3-B; 4-V,G
5.What is a flower? Name its main parts and their functions.
Anagrams “Flower” 1. Knit 7. Ch-sh-l-st-k 2. L-p-st-k 8. Lkinpy 3. Cheklitos 9. T-ch-n-- 4. Ts--t-n --k- 10. Kitpes 5. Kstoibl 11. O-l-tsv-tn-k 6. Zhetotsvloe 12. Kichven
A flower is an organ of seed reproduction. A flower consists of a receptacle, perianth, pistil and stamens. The perianth can be simple or double The petals of a flower form a corolla, and the sepals form a calyx Flowers are unisexual (contain both pistils and stamens) and dioecious (contain only stamens or only pistils) Plants on which both staminate and pistillate flowers develop are called monoecious Plants on which they bloom only pistillate or only staminate flowers, called dioecious 2 Conclusions:
Homework. Study paragraph 28, learn the terms, make a model of a flower (bisexual or unisexual).
Reflection. Have you achieved your lesson goal? In what degree? What did you learn new in the lesson? What surprised you?
http://festival.1september.ru Literature: Biology. Plants. Mushrooms. Lichens. 6th grade: lesson plans based on the textbook by V.V. Beekeeper. Volgograd 2007. Textbook V.V. Beekeeper Biology. Bacteria. Mushrooms. Lichens. 6th grade. - M.: Bustard, 2005. Workbook Biology. Plants. Mushrooms. Lichens. 6th grade: V.V. Pasechnik, T.A. Snisarenko. - M.: Bustard, 2012. Information network resources: http://search.babylon.com http://www.myshared.ru http://edu.of.ru http:/ /www.uchportal.ru/
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The work was performed by I.V. Tselikova. biology teacher of the Nikolo-Kormsk secondary school, Rybinsk district, Yaroslavl region, 2013 lesson topic: Flower and its structure
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Fill in the diagram Plant organs vegetative generative root shoot flower fruit seed stem leaf bud
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Flower and its structure “To live, you need sun, freedom and small flower» Hans Christian Andersen
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A flower is a modified shortened shoot used for seed propagation of plants. A flower develops from a generative (flower) bud. Pollination, fertilization, embryo development and the formation of fruits and seeds occur in it.
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The stamen is the male part of the flower. Stamens consist of a long, thin filament and a large anther, inside which pollen develops. The number of stamens may vary. For example: a cherry flower has many stamens, but a tulip has only six.
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Pistil - located at the very top of the receptacle (one or more) and is the female part of the flower. It usually consists of a stigma, style and ovary. But there are exceptions - for example, a tulip does not have a column in its pistil. The stigma is usually sticky, rough or even branched. It serves to attach pollen. The style raises the stigma. The lowest, swollen part of the pistil is the ovary. It contains ovules. To
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Perianth Corolla is a collection of petals. They perform the function of attracting pollinators and also play a role in protecting the developing flower. The calyx is the collection of sepals of a flower. The green color of the sepals indicates that they, like simple leaves, are capable of photosynthesis, and the presence of mechanical tissues tells us that the sepals play a protective role, protecting the delicate parts of the flower inside the bud. In many plants, the sepals fall off during flowering time,
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Double (complex) perianth consists of sepals and petals, such as those of a rose, peony, or apple tree. The sepals are located outside and, unlike the petals, as a rule, have a dense structure and are colored green color. Simple, all its parts are structured almost identically, and therefore in this case they are not usually called either sepals or petals, but only tepals of a simple perianth. However, these leaves are not the same in different plants. Naked flowers have no perianth. Most often they are wind pollinated and do not need to attract pollinating insects.
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Plants Monoecious are plants that have staminate and pistillate flowers on the same plant. Dioecious are plants that have staminate and pistillate flowers on the same plant. different plants
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The right flowers- if several planes of symmetry can be drawn through the tepals. Irregular flowers are flowers through which one plane of symmetry can be drawn.
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Flower formula H - calyx, L - petals, T - stamen, P - pistil, O - simple perianth - irregular flower, * - regular flower, ♀ - pistillate (female) flowers, ♂ - staminate (male) flowers, - bisexual flowers () - fused parts of the flower, Numbers - number of flower parts
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Flower diagram: 1 - inflorescence axis, 2 - bract, 3 - sepal, 4 - petal, 5 - stamen, 6 - gynoecium, 7 - covering leaf.
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An inflorescence is a group of flowers located close to each other in a certain order
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Inflorescences Complex spike Complex umbel Scutellum Spadix Head Umbrella Basket Spike Hand brush simple complex
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Red summer has come, Flowers are growing in the fields, Children are bringing berries and mushrooms home from the forest.
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Rose. Rose is one of the oldest and most magnificent flowers known since ancient times. The ancient Greeks and Romans admired the rose, and medieval minstrels sang its beauty. The monks grew it in monastery gardens and tried to develop new varieties. For many centuries, the rose has been a symbol of beauty; it was with this flower that the beauty of a woman was compared. Grow and select the most best views roses began in the Ancient East, in China, India, Asia Minor. But the actual breeding work on breeding rose hybrids began widely in European countries only in the 18th century.
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Tulip The flower got its name from the Persian word “turban”. And indeed, in shape it resembles a kind of headdress. His homeland is Türkiye. The quality of wild species has been significantly improved here. In 1558, plants were brought to Austria, and then to Germany and England. At the beginning of the 17th century, they spread to Holland, where the passion for this flower assumed extraordinary proportions.
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Chamomile Little sun or the queen of meadows and fields - this is the name of the ancestor of the chrysanthemum - chamomile. This is such an unusual and significant plant that, perhaps, there is no person on Earth who does not know what chamomile is. The history of the name “chamomile” suggests that this flower was previously called “romana grass”, and “romana”, translated from Polish language, means "Roman". This is how the name “chamomile” came into use in Russian.
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Cornflower If poppy decorates the grain fields of our south, then their beauty in the north is cornflower. Lovely blue, like the southern sky, this flower serves as a necessary accessory and faithful companion of the rye field and is almost never found in the wild anywhere else; and even if it were found, it could serve as a sure indication that where it now grows there was once a grain field or a road that led to it.
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Iris Snow-white and almost black, these flowers have absorbed all the colors of the rainbow. Translated from Latin, Iris means rainbow. And it is not surprising that the flower received such a name: the petals, or rather, the perianth lobes, are arranged in such a way that every detail is open to view. And in the rays sunlight and under bright electric lighting, the iris flower seems to shine from within, emitting a glow.
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Narcissus These are herbs equipped with dense bulbs and ribbon-shaped leaves of varying widths. Flowers sit on the tops of leafless stems, covered with a filmy sheath, one or several at a time. The perianth is petal-shaped, in the shape of a tubular funnel, turning at the top into a horizontally straightened or bent downward limb, consisting of 6 equal parts. In the vent there is a crown in the form of a bell or a more or less deep saucer. The ovules sit in several rows in each nest, attaching to internal corners. The fruit is a three-lobed capsule, bursting along the valves into 3 parts. There are several or many seeds, they are spherical and contain protein.
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Marigolds come from America, where they grow wild from New Mexico and Arizona to Argentina. More than 30 species of annual and perennial herbaceous plants are known. The stems are erect, strong, forming compact or spreading bushes from 20 to 120 cm in height, with a pungent, peculiar odor. The marginal flowers are ligulate, with wide, horizontally spaced corollas; the middle ones are tubular. They bloom profusely from June until frost.
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coltsfoot 1. Both the dear mother and the evil stepmother, Live side by side - through the wall 2. On the slope in the meadow, Barefoot in the snow The first flowers are Yellow little eyes. Bright yellow the flower is unsightly: There is a cold surface on top of the leaves. Below is a gentle velvety layer, as if it would touch a mother warmly. Coltsfoot flowers are very similar to dandelion flowers. They are just as yellow. Dandelion leaves grow first, and only then flowers appear. But with coltsfoot it’s the other way around. She can sometimes meet spring under the snow. You dig up a snowdrift, and underneath it a yellow peephole peeks out.
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forget-me-not Forget-me-not is the most small flower, but how many poems the poets wrote about him, how many legends and folk tales! Here's one of them. One day, the goddess of flowers, Flora, descended to earth and began to bestow names on flowers. She gave everyone gifts and wanted to leave, but heard a weak voice: “You forgot me, Flora, please give me a name.” Flora barely saw a small flower among the forbs. “Okay,” said Flora, “here’s your name. And I will also give you a miraculous power: you will restore the memory of those people who begin to forget their loved ones or their homeland.”
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dandelion Dandelion is herbaceous plant with bitter milky juice. It feels before dawn what the coming day will be like. If it’s gloomy and rainy, then the flower – the sun – will never open. And if the weather promises to be good, the dandelion flowers will open by 6 o'clock in the morning. People say: “A golden eye looks at the sun. In nature, you can find dandelion everywhere, and in gardens it is a frequent uninvited guest. Because its seeds, equipped with a fluffy flying tuft, are easily dispersed by the wind, the dandelion quickly conquers territory both near and far around the mother plant. Active reproduction, adaptability to any soil and unpretentiousness, which is so valued by cultivated plants, have given the dandelion a bad name - it is considered a malicious weed...
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FLOWERS Create comfort, green on the windows, All year round bloom State budgetary educational institution"School Perspective" DO "Znayka" Moscow Prepared by: teacher Skorokhodova E.N.
chamomile There is a curl in the garden - a white shirt, a golden heart. What it is?
poppy The sun is burning the top of my head, Wants to make a rattle.
The cactus grew under the burning sun, thick, juicy and prickly.
sunflower Golden sieve, full of black houses. So many black houses, so many white residents.
lily of the valley White peas On a green stem.
bells Oh, bells, Blue colour, With a tongue, but no ringing.
dandelion I am a fluffy ball, turning white in a clean field, And the breeze blew - A stalk remained
snowdrop sprouts, amazing flower. It grows from under the snow, the sun shines - it blooms
rose Although I am neither a beast nor a bird, I can defend myself! I’ll spread my claws - Just touch my flowers!
water lilies cups and saucers do not sink or break
The tulip grew from a bulb, but is not suitable for food. It looks like a bright glass. It looks like a flower.
carnations Everyone is familiar with us: Bright as a flame, We are namesakes With small nails.
cornflower Bright blue, fluffy It will be born in bread, Not suitable for food.
rosehip It does not hiss, although it bites painfully. Then why is it called that?
Peony The lush bush in the garden has blossomed, attracting wasps and bees. All covered in large double flowers - White, pink, burgundy!
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