SURFACE AREA OF PRISM ACTIVITY HOW TO
slant h, and show students how to calculate the answer.Step 7: Show students the surface area formula for square pyramids on the Setting the Stage With Geometry Classroom Poster, SA= ( BA) + 1/2 P The square pyramid has a base area ( BA) measurable by l Show the slant height as 5 feet by drawing a perpendicular line from the center of one of the base sides to the top of the pyramid. Step 6: Finally, draw a square pyramid on the board and mark the dimensions with a base length of 6 feet and a base width of 6 feet. h), and demonstrate how to calculate surface area for the cylinder you have drawn.Step 5: Show students the surface area formula for cylinders on the Setting the Stage With Geometry Classroom Poster, SA= (2 When you unroll the paper, students will see that the surface between the two bases is a rectangle when "unrolled" and that the formula simply adds the area of the bases to the area of the rectangle. Demonstrate this to your class by using a rolled-up piece of paper to create a cylinder use two paper circles (cut out beforehand) to fill in the bases.
SURFACE AREA OF PRISM ACTIVITY PLUS
Indicate that the surface area for a cylinder equals the area of the two bases plus the area of the surface between the bases. Step 4: Now draw a cylinder and mark the dimensions with the radius at 3 feet and the height at 4 feet. Step 3: Demonstrate how to calculate total surface area for the rectangular prism you have drawn. Explain to them that the surface area of 3-D objects is measured in square units, just like the area of 2-D objects, and is the sum of all of the 3-D object's 2-D surfaces.
Step 2: Show students the surface area formula for rectangular prisms on the Setting the Stage With Geometry Classroom Poster: SA= 2 ( l Point out that opposite surfaces have the same area. Ask students to calculate the area of one of the surfaces, say 5 x 4 = 20 square feet.
Step 1: Draw a rectangular prism on the board with these measurements: height = 3 feet, length = 4 feet, and width = 5 feet. Introduction to Formulas for Surface Area
Optional: Make class sets of the Setting the Stage With Geometry Take-Home Activity: Covering Up! printable and the That's A Wrap! Bonus Worksheet printable for students to complete as part of the Lesson Extensions.Hang a copy of the Setting the Stage With Geometry Classroom Poster printable in your classroom or project it using a computer and projector.Print a copy of the Answer Key: Setting the Stage With Geometry printable.Make class sets of the Setting the Stage With Geometry Worksheet: That Should Cover It! printable and the Setting the Stage With Geometry Reference Sheet: Perimeter, Area, Surface Area, and Volume printable.Optional: Setting the Stage With Geometry Take-Home Activity: Covering Up! printable.Optional: That's A Wrap! Bonus Worksheet printable.Setting the Stage With Geometry Classroom Poster printable.Answer Key: Setting the Stage With Geometry printable.Setting the Stage With Geometry Reference Sheet: Perimeter, Area, Surface Area, and Volume printable.Setting the Stage With Geometry Worksheet: That Should Cover It! printable.Understand formulas used to measure the surface area of these basic 3-D shapes: a rectangular prism, a cylinder, and a square pyramid.
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