Monday, April 25, 2016 Tonight’s Homework: Homework 4-25-16 You will need your: Volume of a Cylinder = Cat?!?  Pencil  Journal.

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Monday, April 25, 2016 Tonight’s Homework: Homework You will need your: Volume of a Cylinder = Cat?!?  Pencil  Journal

Today’s Objective: Today we will be developing methods for finding the surface area and volume of cylinders! Reasoning together in team discussions will be critical today. Encourage your team mates to construct viable arguments for their conclusions and to clarify the reasoning of others in your team. Vocabulary: Volume - The number of cubic units needed to fill a solid. Surface Area – Total area of the surface of a 3-dimensional object.

Review: How would you find the surface area of this rectangular prism? How would you find the volume of this rectangular prism? 4 cm 5 cm 3 cm

4 cm 5 cm 3 cm Surface Area: Find the area of each side of the prism! A = Length x Width 4 cm 5cm 3 cm 2(4x3)+2(5x3)+2(4x5)= 94 cm 2 OR (4x3)=12, (5x3)=15, (5x4)=20 - Areas of the top, front, and right sides (12x2)=24, (15x2)=30, (20x2)=40 - Areas multiplied by 2 (bottom, back, and left sides.) = 94 cm 2 Did anyone on your team have a different method?!?

Volume: Area of Base x Height OR Length x Width x Height Method 1: (4 cm)(3 cm)= 12 cm 12 cm(5 cm)= 60 cm 3 Method 2: (4 cm)(3 cm)(5 cm)= 60 cm 3 Did anyone on your team have a different method?!?

How can we use this information to help us figure out the surface area of a cylinder? What do we know about cylinders? geometry/cylinder/formula-area-of-cylinder.php#

What is the surface area of a cylinder with a radius of 2 cm and a height of 6 cm?

How can we use this information to help us figure out the volume of a cylinder?

What is the volume of a cylinder with a radius of 2 cm and a height of 6 cm? =

Cylinder Formulas

- SBAC - ELA CAT TEST is on Monday, April 25! There may be sections of the test which have an audio section. You are welcome to bring your own headphones or earbuds for the test! Testing dates: NEXT WEEK: Monday the 25 th & Wednesday the 27 th WEEK AFTER: Monday the 2 nd & Wednesday the 4 th