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ISD Grade 7 Surface Area of Cubes and Rectangular Prisms PPT

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Mathematics

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Independence School District

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Math Virtual Learning Grade 7 /Surface Area of Cubes and Rectangular Prisms May 12, 2020 Grade 7/Surface Area of Cubes and Rectangular Prisms Lesson: May 12, 2020 Objective/Learning Target: Find surface area of cubes and rectangular prisms. Let’s Get Started: Watch Video: Surface Area Vocabulary: Area is the size of a surface or face. (length x width) Surface Area is the area of all faces added together. Net is a 3-dimensional shape unfolded and laid flat.(Click the link above to see 3D shapes fold and unfold into nets.) Nets - Practice Practice: Find the surface area of the cube and rectangular prism. 4 5 5 2 10 5 5 5 5 5 5 5 10 5 5 5 5 5 5 5 5 5 5 5 5 5 x 5 = 25 5 x 5 = 25 5 x 5 = 25 5 x 5 = 25 5 x 5 = 25 5 x 5 = + 25 150 4 4 2 4 10 2 4 2 2 10 4 4 4 4 10 2 Corr ec t Ans wer 2 10 10 x 4 = 10 x 4 = 10 x 2 = 10 x 2 = 4x2= 4x2= 40 40 20 20 8 + 8 136 Corr ect A nswe r Practice: Go to this website: Surface Area of Cubes and Rectangular Prisms 1. 2. 3. 4. Look at the question carefully. Make sure to have pencil and paper ready. Solve the problem. Type in the answer and then click “Answer”. Practice: Answer the questions on a piece of paper. Find the surface area of the following cubes and rectangular prisms. 1. 2. 3. 4. 9 cm 9 cm 9 cm Answer Key: Once you have completed the problems, check your answers here. 1. 2. 12 x 4 = 12 x 4 = 12 x 8 = 12 x 8 = 4x8= 4x8= 48 48 96 96 32 +32 352 8x5= 8x5= 8x3= 8x3= 3x5= 3x5= Correc ...
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