This document discusses tectonic plate boundaries and their effects on the Earth's surface. It begins with questions to activate students' prior knowledge about boundaries, earthquakes, and volcanoes. The text then defines the four types of boundaries - divergent, convergent, transform, and subduction - and has students learn about each through reading groups. Each boundary type is characterized by how the plates move at the boundary and the resulting geologic effects, such as new crust being formed at divergent boundaries and mountains resulting from convergent boundaries. In summary, the document aims to teach students about the four types of tectonic plate boundaries and how they change the Earth's shape through volcanic and earthquake activity.

1. 9/21/11
LEQ: How do plate boundaries change the
shape of our earth? (complete sentences!)
1. What do you think the word “boundary” means?
(write a definition in your own words!)
2. What do we call the giant slabs of lithosphere that
cover the surface of our earth?
3. How is a tectonic plate different from a dinner
plate?
4. How is a tectonic plate similar to a dinner plate?
5. Make a list of everything you know about
earthquakes and volcanoes!! (bullets are fine!)

2. ACTIVATING STRATEGY
• Discovery Ed: earthquake footage
How do earthquakes
and volcanoes change
the shape of our earth?

3. Today’s LEQ: How do plate boundaries
change the shape of our earth?
By the end of today, you should be able to…
1. Name the 4 types of plate boundaries
2. Describe how the 4 types of boundaries
move
3. Explain the geologic changes that each
boundary creates

4. KEY VOCABULARY
12. Convergent Boundary
13. Divergent Boundary
14. Transform Boundary
15. Subduction Boundary

5. GROUP READING: WRITE THE
______BOUNDARIES NAME OF
THE PLATE
1. BOUNDARY
2. YOU ARE
READING
3. HERE!

6. BECOME AN EXPERT!
a) Read the text aloud as a group.
b) After your group finishes reading, answer the
following questions TOGETHER in your notebook
1. What happens to the tectonic plates at
your plate boundary?
2. What are the EFFECTS of your plate
boundary?
3. What is an EXAMPLE of the plate
boundary you read about?

7. SHARE YOUR KNOWLEDGE!!
TEACH your new group about the article you read!
**Use your answers to questions 1-3 to help you!
You are the only person in your group who knows
anything about your specific type of boundary.
YOU ARE THE EXPERT!! HELP YOUR CLASSMATES
LEARN!!**

8. TECTONIC PLATE BOUNDARIES
Leave space here!
1.
2.
Draw this
3. in your
notebook!
4.

9. Title each section…
TECTONIC PLATE BOUNDARIES
BOUNDARY MEMORY
PICTURE EFFECTS
NAME TRICK

10. GALLERY WALK

11. What Did You Learn?
• Check and correct your notes as I quickly
review them
• Be ready for me to call on you!

12. Divergent Boundary
• PICTURE: move away from each other
• Effects:
• -magma from mantle cools to create new crust
• -continents pull apart or the ocean floor spreads
• DIVERGENT boundaries DIVIDE

14. Convergent Boundary
• PICTURE: two plates moving towards each
other
• EFFECTS: crust is pushed together and
destroyed
• -continents smash together
• -mountains are formed
• -CONVERGENT boundaries COLLIDE

16. Transform Boundary
• PICTURE: two plates sliding past each other
• Effect:
• -plates scrape against each other
• -crust isn’t created or destroyed
• earthquakes happen
• MEMORY TRICK: -DJ TRANSFORM!

18. Subduction Boundary
• PICTURE: two plates are moving towards each
other, the denser oceanic crust sinks under
continental crust
• EFFECTS:
• -oceanic crust and continental crust collide
• -more dense oceanic crust sinks under less dense
continental crust
• Subduction boundaries, oceanic plates Sink

20. NAME THAT BOUNDARY!
PLATE BOUNDARY
HAND MOTIONS

21. HOT Q!!!
SUBDUCTION is a special type
of one of the other three
boundaries.
What type of boundary is it??
CONVERGENT!!!

22. PLATE BOUNDARY IDENTIFICATION:
HOLD UP THE TYPE OF BOUNDARY
YOU SEE!

23. 1.
DIVERGENT

24. 2. SUBDUCTION

25. 3.
DIVERGENT

26. 4. CONVERGENT

27. 5.
DIVERGENT

28. 6.
CONVERGENT

29. 7. SUBDUCTION

30. 8. TRANSFORM

31. 9. CONVERGENT

32. 10. TRANSFORM

33. 11. CONVERGENT

34. 12. TRANSFORM

35. 13.
DIVERGENT

36. 14. TRANSFORM

37. 15. SUBDUCTION

38. 16. SUBDUCTION

39. 17.
DIVERGENT!

40. 18. SUBDUCTION

41. 19. TRANSFORM

42. 20. DIVERGENT

43. HOT Q: The process of subduction tells us
something about the density of oceanic
crust compared to continental crust.
What can we say about to compare the
density of the two?

44. GROUP
PRACTICE:
SCIENCE SAYS!!!

45. SUMMARIZER:
1. Draw a picture of all four types of plate
boundaries
2. Label each one
3. Write 1 EFFECT of each type of boundary
(you may use bullets—this does not need
to be in complete sentences!)