To use the preview of presentations, create a Google account (account) and sign in: https://accounts.google.com


Slides captions:

Coniferous trees Kravtsun M.G. teacher primary school MBOU Egorlykskaya secondary school No. 1

Solve riddles.

What kind of girl is this: Not a seamstress, not a craftswoman, She doesn’t sew anything herself, But in needles all year round. Spruce

He is many hundreds of years old. He is wearing a green sheepskin coat. Although it grows in the remote taiga, He is always highly respected. After all, for adults, for children, He is very rich in cones. And in cones, whatever you say, Nuts are delicious inside. Cedar

A relative of the Christmas tree has Non-thorny needles, But, unlike a Christmas tree, Those needles fall off. Larch

This grandmother is a hundred years old, She does not have a hump, She sticks out high, She looks far, Death will come for the old woman - The grandmother will become a hut. Pine

Coniferous trees are one of the most ancient groups of plants, which are about 300 million years old. Representatives of coniferous trees: cypress, yew, cedar, fir, juniper, pine, spruce, etc. Coniferous trees in abundance, in one form or another, grow throughout the globe, in all parts of the world. Often coniferous trees dominate over other plants. The size of an adult coniferous tree can reach 100 meters in height (the tallest coniferous tree is the evergreen Sequoia - 115.2 meters). In addition, representatives of coniferous trees are not only the tallest, but also the thickest - Mexican Taxodium (11.42 meters in diameter), old - Durable Pine (4700 years) and large - Giant Sequoia Dendron (with a volume of 1486.9 m³) flora representatives. In Russia, the most common are spruce, pine, fir, cedar, juniper.

record holders

Thick - Mexican Taxodium (11.42 m in diameter)

Old - Durable Pine (4700 years)

Large - Giant Sequoia (with a volume of 1486.9 m³).

Quiz

Name 5 coniferous trees (spruce, pine, fir, cedar, larch) 2. Who is spruce friends with in winter? (spruce is friends with crossbill, woodpecker and squirrel in winter) 3. Why do spruce trees have the shape of a triangle? (snow easily slides off them, and does not break branches). 4. What kind of coniferous tree sheds needles for the winter? (larch)

5. Do pine or spruce have longer needles? (near the pine tree) 6. What kind of climate do they like coniferous plants? (cold climate) 7. Which birds feed on cones of coniferous trees? (crossbill, nutcracker) 8. Which coniferous tree has cones - berries? (juniper)


On the topic: methodological developments, presentations and notes

Presentation "Coniferous trees"

The presentation introduces students to the characteristics of coniferous trees, as well as their use in the economy. The presentation can be used in the lessons on the study of the surrounding world in grades 1-2....

To use the preview of presentations, create a Google account (account) and sign in: https://accounts.google.com


Slides captions:

Coniferous trees

Prepared by Petrova Nadezhda Vasilievna St. Petersburg GBDOU Kindergarten №11 25.10.2015 2

Scotch pine evergreen tree height up to 40m. The length of the root is up to 30 m. The crown is highly raised, cone-shaped, and then rounded, wide. Pine lives on average up to 350 years. 10/25/2015 3

Pine needles The needles are trihedral or flattened, located on short shoots in two, long and narrow, hard, smooth, prickly (up to 8 cm long), usually remain on the shoots from 3 to 6 years. 25.10.2015 4

The pine "blooms" in late May - early June 25.10.2015 5

Pine cones and seeds 25.10.2015 6

Application of pine Pine wood is widely used. Rosin and turpentine are obtained from pine resin, with more deep processing get solvents, flavors, adhesives. 25.10.2015 7

Norway spruce 25.10.2015 8 Evergreen spruce - the most ancient tree in the Russian forest. Reaches 30 m. The spruce is frost-resistant, shade-hardy.

Spruce needles Spruce needles are tetrahedral, arranged in a spiral, sitting one at a time on leaf pads. The length of the needles is up to 2 cm. The life expectancy of each needle is six or more years. 25.10.2015 9

Spruce cones and seeds 10/25/2015 10

The use of spruce Spruce wood is used in construction, used in the pulp and paper industry, as well as for the manufacture of musical instruments, containers, sleepers, telegraph poles. 10/25/2015 11

On Christmas and New Year it is customary to put Christmas tree. 25.10.2015 12

Larch Larch in favorable conditions grows up to 50 meters, lives up to 400 years. Larch turns yellow in autumn deciduous trees, and for the winter its needles crumble. 10/25/2015 13

Larch needles Larch needles are soft, tender, flattened, bright green. They grow in bunches of 20-30 pieces together. The length of the needles reaches 40 mm. 25.10.2015 14

On the this lesson the topic "Deciduous and Coniferous Trees" will be considered, which will help students learn about two groups of trees - deciduous and coniferous. Consider them features.

Lesson: Deciduous and coniferous trees

As you know, each tree has its own distinctive features. Leaves are one such feature. Sheet- This is one of the main organs of the plant, performing the function of respiration and nutrition. The leaves of trees are very diverse in shape and size.

Birch has small carved leaves.

Linden leaves are shaped like a heart.

Oak leaves will expand at the top of the leaf.

Maple has a wide leaf plate with pointed ends.

Rowan has a complex leaf, on the central petiole there are up to 15 small leaves.

Complex leaf and chestnut. Slightly pointed leaves are connected at the top of the main petiole.

Birch, mountain ash, oak, maple, linden are deciduous trees. They have their own distinctive features.

1) The presence of leaves.

2) In autumn, the color of the leaves changes.

3) All deciduous trees shed their foliage. This phenomenon is called leaf fall.

A large number of treesform a deciduous forest.

Let's get acquainted with some representatives of deciduous trees.

The most powerful tree in the forest is considered oak. Our ancestors considered oak sacred tree. The height of the oak is about 50 meters, the life expectancy is 500 years. But there are centenarians for more than a thousand years. Ripe on oak trees in autumn acorns.

These are rich and nutritious fruits. The squirrel loves to eat acorns, and will hide them in a hollow in reserve. The forest bird jay is also a lover of delicious fruits. Rushing for acorns and wild boars, because they need to accumulate fat in order to overwinter the winter.

Our ancestors knew: a lot of acorns on oak - for a harsh winter. Wheat should be sown when the oak leaves unfold. And oak is considered a symbol of power and strength. Oak wreaths were awarded to the bravest warriors.

People say about cowardly people: "It trembles like an aspen leaf." In fact, the aspen leaf trembles from the slightest breath of wind. This is due to the structure of the petiole . The aspen petiole is very thin and long, even in calm weather, aspen leaves rustle quietly. In the spring, before the leaves appear on the aspen, earrings appear. People say: "Fluff flew from the aspen, go to the forest for a boletus."

These are mushrooms that love to grow under the aspen. The caps of these mushrooms resemble the autumn color of aspen leaves.

What tree is this riddle about?

Takes from my flower

The bee is the most delicious honey.

And everyone hates me

Remove the thin skin.

This Linden. Fragrant fragrant linden flowers attract bees. And it is not for nothing that the bees produce linden honey, it has healing properties. Our ancestors went to linden for bast. This is the inner part of the cortex. Thin strips were removed from the tree and bast shoes were woven. Linden wood is very soft and white. Furniture, dishes and musical instruments are made from it.

The second group of trees is coniferous. Needles are modified leaves. Coniferous trees include spruce, cedar pine, fir, larch. A forest of coniferous trees is called coniferous. Unlike deciduous trees, coniferous trees do not shed their needles in autumn, so their other name is evergreen.

Spruce is an evergreen coniferous tree. The crown of the tree descends to the very ground, so it is dark and damp in the spruce forests. spruce forests called spruce forests. Spruce roots are located close to the surface of the earth. Therefore, from a strong wind, spruce trees fall, forming impenetrable thickets and windbreaks. It looks like a spruce branch with cones. Cones are oblong.

Spruce - very interesting and useful tree. Its wood is used to make musical instruments and paper. Coniferous trees emit special substances, they fill the air with a pleasant aroma and purify it. How much joy the green beauty brings to the house under New Year!

Pine is a coniferous tree. The crown of the tree is at the very top, so it is light in the pine forests. Such a forest is called pine forest. The pine has powerful roots, so it is not afraid of strong winds. And pine can grow on rocks and ravines. It looks like a pine branch with a cone.

Pine needles are longer than those of spruce. Needles grow on a branch two together. Cones are short, rounded.

There is a tree with unusual properties among coniferous trees - this larch. Like spruce and pine, larch has needles; in autumn, larch turns yellow and sheds needles like leaves, which is why it is called larch. In the spring, young needles reappear from the buds.

If there are both coniferous and deciduous trees in the forest, such a forest is called mixed.

Trees are the lungs of our planet. By absorbing harmful substances, trees release air and oxygen. Leaves hold fumes and soot. Trees need to be protected.

In the next lesson, the topic "Autumn in the life of plants" will be considered. In the course of the lesson, we will learn about the most important seasonal changes that occur with almost all plants. Let's see how autumn manifests itself, and then find out the role of autumn in plant life.

1. Samkova V.A., Romanova N.I. The world 1. - M.: Russian word.

2. Pleshakov A.A., Novitskaya M.Yu. The world around 1. - M .: Education.

3. Gin A.A., Faer S.A., Andrzheevskaya I.Yu. The world around 1. - M .: VITA-PRESS.

1. Describe deciduous trees.

2. Describe conifers.

3. Guess the riddles.

1. I have longer needles than a Christmas tree.

I am growing very straight - in height.

If I'm not at the edge,

Branches only at the top. (Pine)

2. You will always find her in the forest -

You go for a walk and you will meet:

It is prickly, like a hedgehog,

In winter in a summer dress. (Spruce)

3. In this sleek box

Bronze color

Hidden little oak tree

Next summer. (Acorn)

4. Who knows what kind of tree this is?

A relative has a Christmas tree

Non-thorny needles.

But unlike the Christmas tree -

Those needles are falling off. (Larch)

5. Takes from my flower

Bee is the most delicious honey.

And yet they offend me

The thin skin is torn off. (Linden)