GRADE 8: Watershed Mapping

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Watershed Mapping Description: This lesson is designed to accompany the Grade 8 GUSH Workshop. Students will draw different transformations of shapes on a Cartesian plane to see the impacts of watershed runoff on water pollution. Grade Level: Grade 8 Setting: Classroom Learning Objectives: 1. Recall different pollutants that can enter a water system by watershed runoff. 2. Draw translations, rotations and reflections of shapes to represent watershed runoff. 3. Determine different methods to reduce the effects of water pollution caused by watershed runoff. Duration: 1 hour Key Words: Watershed Transformation Translation Reflection Cartesian plane X axis Y axis Related Curriculum Links: Understanding Earth and Space Systems – Water Systems 3.2 demonstrate an understanding of the watershed as a fundamental geographic unit, and explain how it relates to water management and planning Geometry and Spatial Sense – graph the image of a point, or set of points, on the Cartesian coordinate plane after applying a transformation to the original point(s) (i.e., translation; reflection in the xaxis, the yaxis, or the angle bisector of the axes that passes through the first and third quadrants; rotation of 90°, 180°, or 270° about the origin); – identify, through investigation, realworld movements that are translations, reflections, and rotations. Equipment: Pencils Rulers Markers Consumables: Copies of Tin Roof Global’s Watershed Mapping worksheet (attached) Poster paper Safety Considerations: N/A

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Transcript of GRADE 8: Watershed Mapping

Page 1: GRADE 8: Watershed Mapping

   

Watershed  Mapping    

Description:    This  lesson  is  designed  to  accompany  the  Grade  8  GUSH  Workshop.  Students  will  draw  different  transformations  of  shapes  on  a  Cartesian  plane  to  see  the  impacts  of  watershed  runoff  on  water  pollution.  

Grade  Level:    Grade  8  

Setting:    Classroom    

Learning  Objectives:  1.  Recall  different  pollutants  that  can  enter  a  water  system  by  watershed  runoff.  2.  Draw  translations,  rotations  and  reflections  of  shapes  to  represent  watershed  runoff.  3.  Determine  different  methods  to  reduce  the  effects  of  water  pollution  caused  by  watershed  runoff.  

Duration:    1  hour  

Key  Words:  -­‐Watershed  -­‐Transformation  -­‐Translation  -­‐Reflection  -­‐Cartesian  plane  -­‐X  axis  -­‐Y  axis      

Related  Curriculum  Links:    Understanding  Earth  and  Space  Systems  –  Water  Systems  3.2  demonstrate  an  understanding  of  the  watershed  as  a  fundamental  geographic  unit,  and  explain  how  it  relates  to  water  management  and  planning    Geometry  and  Spatial  Sense  –  graph  the  image  of  a  point,  or  set  of  points,  on  the  Cartesian  coordinate  plane  after  applying  a  transformation  to  the  original  point(s)  (i.e.,  translation;  reflection  in  the  x-­‐axis,  the  y-­‐axis,  or  the  angle  bisector  of  the  axes  that  passes  through  the  first  and  third  quadrants;  rotation  of  90°,  180°,  or  270°  about  the  origin);    –  identify,  through  investigation,  real-­‐world  movements  that  are  translations,  reflections,  and  rotations.  Equipment:    -­‐  Pencils  -­‐  Rulers  -­‐  Markers  

Consumables:  -­‐  Copies  of  Tin  Roof  Global’s  Watershed  Mapping  worksheet  (attached)  -­‐  Poster  paper  

Safety  Considerations:    N/A  

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 Lesson:  Starter  (5  minutes)  Ask  students  to  think  back  to  the  Grade  8  GUSH  workshop  and  think  of  possible  pollutants  that  could  end  up  in  a  water  system  due  to  surface  runoff.  Write  their  suggestions  down  on  the  board.  Answers  may  include:  waste  from  homes,  industrial  buildings,  construction  sites,  farms  etc.    Activity  (35  minutes)  Explain  to  students  that  today  they  will  be  using  their  understanding  of  transformations  of  shapes  to  see  the  impact  watershed  runoff  has  on  water  pollution.      Hand  out  a  Watershed  Mapping  worksheet  to  each  student  and  go  through  the  instructions  with  the  students.  First,  students  will  need  to  label  their  Cartesian  grid,  including  an  x-­‐axis,  y-­‐axis  and  numbers.  For  Water  Source  1,  students  will  follow  instructions  to  draw  appropriate  translations,  rotations  and  reflections  to  determine  what  pollutants  this  water  source  picks  up  before  it  enters  the  lake  at  the  bottom  of  the  page.  For  Water  Source  2,  students  are  first  given  coordinates  to  draw  the  shape  of  the  source,  and  then  will  follow  instructions  to  draw  appropriate  translations,  rotations  and  reflections  to  determine  what  pollutants  this  water  source  picks  up.      Once  students  have  finished  drawing  the  transformations  for  both  water  sources,  they  will  need  to  identify  which  pollutants  have  entered  the  lake.  They  should  answer  that  Water  Source  1  picked  up  pollutants  from  a  landfill,  a  farm  and  an  industrial  site.  Water  Source  2  picked  up  pollutants  from  a  construction  site,  a  landfill  and  an  industrial  site.      Conclusion  (20  minutes)  Split  the  class  into  groups  of  3-­‐4  students,  hand  out  poster  paper  and  markers,  and  assign  each  group  one  of  the  four  pollutant  types.  Tell  each  group  that  they  should  think  of  specific  examples  of  their  pollutant  type  and  identify  solutions  to  minimize  its  impact  on  water  pollution.  When  groups  have  finished  writing  their  ideas  on  the  poster  paper,  they  can  then  present  their  ideas  to  the  class.  Accommodations/Modifications  Instructions  can  be  modified  to  only  include  one  type  of  transformation  (ie  translation).  Students  can  be  given  blocks  of  similar  shape  to  the  water  sources  to  help  them  visually  picture  their  transformations  before  drawing  them.  Extensions  Students  can  create  their  own  Watershed  Mapping  activity  to  try  out  on  their  peers.    

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Watershed  Mapping    

       

                                                             

Lake  

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For  each  step  draw  the  appropriate  translation,  rotation  or  reflection  of  the  water  source  to  see  the  impact  it  has  on  water  pollution!  

 Water  Source  1  

 1. Rotate  90  counter  clockwise  around  point  (-­‐11,  16)  2. Translate  +2  units  in  x  direction,  -­‐5  units  in  y  direction  3. Reflect  on  x  =  -­‐9  4. Translate  -­‐12  units  in  y  direction  5. Rotate  90  clockwise  around  point  (-­‐6,  -­‐4)  6. Translate  -­‐3  units  in  x  direction,  -­‐10  units  in  y  direction  7. Reflect  on  x  =  -­‐6  8. Translate  +3  units  in  x  direction,  -­‐7  units  in  y  direction    Type  of  pollutants  picked  up  by  Water  Source  1:    

 Water  Source  2  

 1. Draw  the  four-­‐sided  water  source  with  points  at  the  following  coordinates:  

A  =  (7,  16)   B  =  (8,  19)   C  =  (11,  19)   D  =  (12,  16)  2. Translate  -­‐1  units  in  x  direction,  -­‐12  units  in  y  direction  3. Rotate  180  clockwise  around  point  (6,4)  4. Reflect  on  y  =  -­‐5  5. Translate  -­‐4  units  in  x  direction,  -­‐10  units  in  y  direction  6. Rotate  90  clockwise  around  point  (7,  -­‐18)    Type  of  pollutants  picked  up  by  Water  Source  2:    

   

Pollutant  Legend    

            =  Landfill       =  Construction  Site               =  Industrial  Site     =  Farm