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**Foundations of Technology Calculating Area and Volume**

STEMCenter for Teaching & Learning™ Engineering byDesign™ 12/01/2009 Foundations of Technology Calculating Area and Volume TITLE SLIDE Teacher Resource – Unit 2 Lesson 5 © 2013 International Technology and Engineering Educators Association, STEMCenter for Teaching and Learning™ Foundations of Technology © International Technology Education Assoc

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**STEMCenter for Teaching & Learning™ Engineering byDesign™**

12/01/2009 The BIG Idea Big Idea: At various intervals of the Engineering Design Process, conceptual, mathematical and physical models are used to evaluate the design solution. [Authors: Please include teacher notes appropriately.] © 2013 International Technology and Engineering Educators Association, STEMCenter for Teaching and Learning™ Foundations of Technology © International Technology Education Assoc

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**STEMCenter for Teaching & Learning™ Engineering byDesign™**

12/01/2009 Area and Volume Definitions: Area – the amount of space inside a two- dimensional shape. Surface area – the total area of all surfaces on a three-dimensional object. Volume – the amount of space a three- dimensional object occupies. Area is measured in "square" units. The area of a figure is the number of squares required to cover it completely. Volume is measured in "cubic" units. The volume of a figure is the number of cubes required to fill it completely © 2013 International Technology and Engineering Educators Association, STEMCenter for Teaching and Learning™ Foundations of Technology © International Technology Education Assoc

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**STEMCenter for Teaching & Learning™ Engineering byDesign™**

12/01/2009 Area Square: a = the length of all sides, as all sides are equal Equation for Area (A) = a² a a a a © 2013 International Technology and Engineering Educators Association, STEMCenter for Teaching and Learning™ Foundations of Technology © International Technology Education Assoc

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**STEMCenter for Teaching & Learning™ Engineering byDesign™**

12/01/2009 Area Rectangle: W = the width of rectangle H = the height of rectangle Equation for Area (A) = W x H W H © 2013 International Technology and Engineering Educators Association, STEMCenter for Teaching and Learning™ Foundations of Technology © International Technology Education Assoc

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**STEMCenter for Teaching & Learning™ Engineering byDesign™**

12/01/2009 Area Triangle: b = the base of the triangle h = the height of the triangle Equation for Area (A) = ½(b x h) h b © 2013 International Technology and Engineering Educators Association, STEMCenter for Teaching and Learning™ Foundations of Technology © International Technology Education Assoc

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**STEMCenter for Teaching & Learning™ Engineering byDesign™**

12/01/2009 Area Circle: r = the radius of the circle Equation for Area (A) = π(r²) r © 2013 International Technology and Engineering Educators Association, STEMCenter for Teaching and Learning™ Foundations of Technology © International Technology Education Assoc

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**STEMCenter for Teaching & Learning™ Engineering byDesign™**

12/01/2009 Practice Questions Calculate the area for the square and rectangle: a = 4 W = 3 H = 2 © 2013 International Technology and Engineering Educators Association, STEMCenter for Teaching and Learning™ Foundations of Technology © International Technology Education Assoc

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**STEMCenter for Teaching & Learning™ Engineering byDesign™**

12/01/2009 Practice Questions Calculate the area for the square and rectangle: a = 4 W = 3 Area = a² = 4² A = 16 Area = W x H = 3 x 2 A = 6 H = 2 © 2013 International Technology and Engineering Educators Association, STEMCenter for Teaching and Learning™ Foundations of Technology © International Technology Education Assoc

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**STEMCenter for Teaching & Learning™ Engineering byDesign™**

12/01/2009 Practice Questions Calculate the area for the triangle and circle: r = 2.5 h = 3 b = 4 © 2013 International Technology and Engineering Educators Association, STEMCenter for Teaching and Learning™ Foundations of Technology © International Technology Education Assoc

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**STEMCenter for Teaching & Learning™ Engineering byDesign™**

12/01/2009 Practice Questions Calculate the area for the triangle and circle: r = 2.5 h = 3 Area = π(r²) = π(2.5²) = π(6.25) A = 19.6 Area = ½(b x h) = ½(4 x 3) = ½(12) A = 6 b = 4 © 2013 International Technology and Engineering Educators Association, STEMCenter for Teaching and Learning™ Foundations of Technology © International Technology Education Assoc

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**STEMCenter for Teaching & Learning™ Engineering byDesign™**

12/01/2009 Surface Area Cube: a = the length of all sides, as all six sides are equal Equation Surface Area (SA) = 6(a²) a a a © 2013 International Technology and Engineering Educators Association, STEMCenter for Teaching and Learning™ Foundations of Technology © International Technology Education Assoc

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**STEMCenter for Teaching & Learning™ Engineering byDesign™**

12/01/2009 Surface Area Rectangular Prism: W = the width of the prism D = the depth of the prism H = the height of the prism Equation Surface Area (SA) = 2(W x H) + 2(D x H) + 2(W x D) W D H © 2013 International Technology and Engineering Educators Association, STEMCenter for Teaching and Learning™ Foundations of Technology © International Technology Education Assoc

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**STEMCenter for Teaching & Learning™ Engineering byDesign™**

12/01/2009 Surface Area Sphere: r = the radius of the sphere Equation Surface Area (SA) = 4π(r²) r © 2013 International Technology and Engineering Educators Association, STEMCenter for Teaching and Learning™ Foundations of Technology © International Technology Education Assoc

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**STEMCenter for Teaching & Learning™ Engineering byDesign™**

12/01/2009 Surface Area Cylinder: r = the radius of the cylinder h = the height of the cylinder Equation Surface Area (SA) = 2π(r²) + 2π(r x h) h r © 2013 International Technology and Engineering Educators Association, STEMCenter for Teaching and Learning™ Foundations of Technology © International Technology Education Assoc

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**STEMCenter for Teaching & Learning™ Engineering byDesign™**

12/01/2009 Practice Questions Calculate the surface area for the cube and rectangular prism: H = 3 a = 2 D = 2 W = 4 © 2013 International Technology and Engineering Educators Association, STEMCenter for Teaching and Learning™ Foundations of Technology © International Technology Education Assoc

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**STEMCenter for Teaching & Learning™ Engineering byDesign™**

12/01/2009 Practice Questions Calculate the surface area for the cube and rectangular prism: H = 3 a = 2 D = 2 W = 4 Surface Area = 2(W x D) + 2(H x D) + 2(W x H) = 2(4 x 2) + 2(3 x 2) + 2(4 x 3) = 2(8) + 2(6) + 2(12) = SA = 52 Surface Area = 6a² = 6(2²) = 6(4) SA = 24 © 2013 International Technology and Engineering Educators Association, STEMCenter for Teaching and Learning™ Foundations of Technology © International Technology Education Assoc

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**STEMCenter for Teaching & Learning™ Engineering byDesign™**

12/01/2009 Practice Questions Calculate the surface area for the sphere and cylinder: r = 2 h = 6 r = 1 © 2013 International Technology and Engineering Educators Association, STEMCenter for Teaching and Learning™ Foundations of Technology © International Technology Education Assoc

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**STEMCenter for Teaching & Learning™ Engineering byDesign™**

12/01/2009 Practice Questions Calculate the surface area for the sphere and cylinder: Surface Area = 2π(r²) + 2π(r x h) = 2π(1²) + 2π(1 x 6) = 2π(1) + 2π(6) = SA = 44 r = 2 h = 6 Surface Area = 4π(r²) = 4π(2²) = 4π(4) SA = 50.24 r = 1 © 2013 International Technology and Engineering Educators Association, STEMCenter for Teaching and Learning™ Foundations of Technology © International Technology Education Assoc

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**Volume of Cubes & Prisms**

STEMCenter for Teaching & Learning™ Engineering byDesign™ 12/01/2009 Volume of Cubes & Prisms Volume of a Cube V = a3 Volume of a Rectangular prism V = W x H x D a W D H © 2013 International Technology and Engineering Educators Association, STEMCenter for Teaching and Learning™ Foundations of Technology © International Technology Education Assoc

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**Volume of Spheres & Cylinders**

STEMCenter for Teaching & Learning™ Engineering byDesign™ 12/01/2009 Volume of Spheres & Cylinders Volume of a Sphere V = 4/3∏(r³) Volume of a Cylinder (V) = ∏(r²)h r h r © 2013 International Technology and Engineering Educators Association, STEMCenter for Teaching and Learning™ Foundations of Technology © International Technology Education Assoc

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**STEMCenter for Teaching & Learning™ Engineering byDesign™**

12/01/2009 Practice Questions Calculate the volume of the cube and rectangular prism: H = 3 a = 2 D = 2 W = 4 © 2013 International Technology and Engineering Educators Association, STEMCenter for Teaching and Learning™ Foundations of Technology © International Technology Education Assoc

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**STEMCenter for Teaching & Learning™ Engineering byDesign™**

12/01/2009 Practice Questions Calculate the volume of the cube and rectangular prism: H = 3 a = 2 D = 2 W = 4 Volume = W x D x H V = 4 x 2 x 3 V = 24 Volume = a3 V = (23) V = 8 © 2013 International Technology and Engineering Educators Association, STEMCenter for Teaching and Learning™ Foundations of Technology © International Technology Education Assoc

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**STEMCenter for Teaching & Learning™ Engineering byDesign™**

12/01/2009 Practice Questions Calculate the volume of the sphere and cylinder: r = 2 h = 6 r = 1.5 © 2013 International Technology and Engineering Educators Association, STEMCenter for Teaching and Learning™ Foundations of Technology © International Technology Education Assoc

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**STEMCenter for Teaching & Learning™ Engineering byDesign™**

12/01/2009 Practice Questions Calculate the volume of the sphere and cylinder: Volume = ∏(r²)h V = (3.14) (1.52) (6) V = (3.14) (2.25) (6) V = 42.39 r = 2 h = 6 Volume = 4/3∏(r³) V = (1.33) (3.14) (23) V = 4.19 x 8 V = 33.49 r = 1.5 © 2013 International Technology and Engineering Educators Association, STEMCenter for Teaching and Learning™ Foundations of Technology © International Technology Education Assoc

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