Ecology lesson

Ecology lesson on a topic:
Agricultural ecosystems
Lesson objects:
-To apprise students of composition, structure and operational characteristics of agro-ecosystem.
- To form students vision about resource, biological, economic and ecological limitation.
- To expand students knowledge about soil fertility conservation.
Course of the lesson
Actualization of backbone notions
Music by P. I. Tchaikovsky "April. Snowdrop" (A little snowdrop flower, growing directly out of snow, becomes the symbol of the eternal aspiration to life. )
To this background music students speak about the creation of ecosystems agricultural output manufacture and about human agro-ecosystem management.
Agro-ecosystem is artificially created and constantly propped up ecosystem for agricultural output manufacture.
But few of them ever turn to weaving.
To know and note the living, youll find it
Best to first dispense with the spirit:
Then with the pieces in your hand,
Ah! Youve only lost the spiritual bond
Johann Wolfgang von Goethe

What is the meaning of given epigraph?
The prefatorial speech of the teacher about courses of the lesson and the using Texas state informational material during the process of learning of the new topic.
1. Agro-ecosystem- work with the book illustration 66 on page 179, table 11, 32 paragraph. The demonstration model of "agrocenosis" application.
- Assignment: Draw a diagram of species relationships in the meadow: clover, bumble bees, nodule bacteria, earthworms, clover weevil, parasitic fungi, molds, soil fungi and specify their role in biogeocenosis meadows.
-Biological production of agro-ecosystem is usually high. The composition of