Have you ever seen a construction site?
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Have you ever seen a construction site?

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Have you ever seen a construction site?




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Presentation on theme: "Have you ever seen a construction site?"— Presentation transcript:

Slide1

Have you ever seen a construction site?

Describe what was being done at the construction site you saw.

Challenge

:

AQ 1, AQ 2, AQ3, AQ 4

Introduction:

Materials:

Procedure:

Vocabulary:

Data:

Analysis:

Lesson 24: Where Shall We Build?

Where should Boomtown construct the new buildings?

Read introduction on C-4

evidence, inference, landform, marsh, observation, trade-offs, wetlands

Observations before and After Construction data table

Slide2

Scenario

There is a need

for new homes in

the rapidly

growing community of Boomtown.

Explain that

there are three possible sites being

considered for

construction

Slide3

Physical shapes such as hillsides, cliffs, and marshes are called:

hillsides

marshes

cliffs

Landforms

Slide4

Marsh

A marsh is an example of a “Wetland”. A wetland is an area made up mostly of water and watery land.

A marsh is wetland area dominated by grasses.

A marsh is dominated by grasses. A swamp is dominated by trees.

What are some examples of local wetlands?

Smith and Bybee lake

The Columbia Slough

An example of a wetland that is different then a marsh is a swamp.

Slide5

The photographs in Figure 1 in the Student Book shows examples of three kinds of locations being considered—hillsides, wetlands, and seaside cliffs—both before and after construction.

These are not before and after photographs of Boomtown, since Boomtown is still in the process of deciding where to build.

In fact, none of the

photographs are

of the same place nor are they

taken from

the same perspective.

Slide6

Directions

Each student will then create a data table to fill out and answer the questions at the end of the activity individually.

1. Each Group uses the 4-2-1 approach :

2. Students should work in pairs to study the photographs.

3. Then

students

will meet

in groups of four to further

discuss

their

ideas and

review their observations.

The Recorder must record the groups results

on a data table given to him/her to be shared with the

class and then turned in to Mr.

Saulter

Slide7

Marsh

Slide8

Hillside

Slide9

Cliff

Slide10

Directions

Each student will then be given a data table to fill out and answer the questions at th end of the activity individually.

1. Each Group uses the 4-2-1 approach :

2. Students should work in pairs to study the photographs.

3. Then

students

will meet

in groups of four to further

discuss

their

ideas and

review their observations.

The Recorder must record the groups results

on a blank sheet of paper to be shared with the class

and then turned in to Mr.

Saulter

Slide11

.

observations Descriptions or measurements gathered by the senses. What we can see directly in the photographs.

While this inference is a possibility, the only way to be certain would be to look at the actual situation and see if the wildlife has suffered as a result.

What is the difference between scientific observations and inferences?

Inferences The conclusions we make based on what we see.

We may observe that the wetlands have been filled in and have less water.

From this,

we

may infer that this has been bad for wildlife in the area

Slide12

Directions

Each student will then be given a data table to fill out and answer the questions at th end of the activity individually.

1. Each Group uses the 4-2-1 approach :

2. Students should work in pairs to study the photographs.

3. Then

students

will meet

in groups of four to further

discuss

their

ideas and

review their observations.

The Recorder must record the groups results

on a blank sheet of paper to be shared with the class

and then turned in to Mr.

Saulter

Slide13

Appearance Before Construction Appearance After ConstructionMarshLots of water and birds.Full of grasses, reeds, and some trees.Land area looks swampy.Very flat and dry.Some trees and grass.No water visible.No birds visible.Lots of houses and concrete.Trees and grass are present,but different kinds than beforeHillsideCovered with trees and grass.Hills have ridges and valleys.Houses, roads, and cars.Less grass, fewer trees, soil churned up in some places.Some areas are leveled.CliffSandy and rocky on the sides of cliff.Some vegetation on the top.Small overhang at top.Barriers built in front of shore.Looks unstable.House on top of cliff.Sandy and rocky sides with more overhangLess vegetation on top.Coastline is not as straight as before

Sample Observations Before and After

Construction

Slide14

Marshes hills, and cliffs are three kinds of landforms. A landform is any characteristic physical shape of the earth’s surface.

Make a list of some other familiar landforms that you can think of that aren’t mentioned in this activity.

1. valleys

2. canyons

3. plateaus

4. mountains,

5. buttes

6. mesas

7. stone arches

Analysis Question 1

Slide15

Explain how each of the following places was either changed or was not changed by the construction of buildings:

Analysis Question 2

a. marsh

The marsh was changed because there is no longer any water in the area.

The ground has become solid instead of marshy.

There are no birds to be seen and the grasses and trees were replaced with species that are not originally from the area.

There doesn’t appear to be anything that hasn’t been changed as a result of building at this site.

Slide16

Analysis Question 2

b. hillside

The area outside of the immediate area does not seem to be changed.

The hillside was changed because the trees were cut down and replaced with roads and houses.

The earth surface has fewer peaks and valleys after building.

Explain how each of the following places was either changed or was not changed by the construction of buildings:

Slide17

Based on what you know so far, on which site do you think Boomtown should build houses? Explain, using the observations that formed your opinion.

Example: a student might say that Boomtown should build homes on the marsh, because the marsh was unattractive and that after construction the marsh is filled in with firm soil.

Analysis Question 3

Slide18

Explain how the following information about the Delta Marsh, Green Hill, and Seaside Cliffs could help the council make the decision about where to build the new housing.

Analysis Question 4

a. weather

Rainfall - heavy rain could wash away the hills or the cliff and could flood the wetlands.

b. animals

T

he

birds

seen in

the photos of the wetlands, could

be endangered

if the construction destroys

or significantly

changes the habitat needed

for them

to live.

Slide19

Analysis Question 4

Explain how the following information about the Delta Marsh, Green Hill, and Seaside Cliffs could help the council make the decision about where to build the new housing.

c. plants

Plants may also be endangered or at least made scarce locally.

Plants

, like those found at the top of the cliff, help prevent

erosion

because they absorb water and because their roots stabilize the earth

.

Slide20

Analysis Question 4

d. housing prices

Housing prices could go down if there is more housing available, or if the construction makes the area less attractive.

e. shape of the land

Some landforms are difficult to build on, such as a very steep slope.

Some

places are not safe to build on, such as an area that will flood.

Slide21

Slide22

Slide23