Lesson: Volume of Rectangular Prism

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Lesson Objective

SWBAT find the volume of a rectangular prism.

Lesson Plan

 Element/Time Lesson Steps Do Now (8:30 – 8:40)/(10:00 –10:10) ·         T displays 4 review problems ·         S complete problems independently on do now sheet ·         T walks around to check hw/help students with do now questions ·         T/S review problems together ·         S correct their work to reflect the correct answers HW Check ·         T displays correct answers and work ·         S correct work with colored pencil  T walks around to review specific students work ·         T/S review 3 questions Mental Math (8:40 – 8:50) /(10:10 – 10:20) · Mini Lesson (8:50 – 9:25)/(10:20 – 10:55) ·         T will tell students that Volume is a measure for 3D shapes.    ·         T will tell student volume is the number of cubic units that can fit inside of a solid.  (The number of cubes that fit in a shape) ·         T/S will show an example using cubes as manipulatives o    Give students a rectangular solid and several one inch cubes o    Ask students to fill the solid with cubes and to count how many cubes fit inside of the solid o    Explain that this is the volume of the solid ·         T will tell students that while we can always find volume by filling a solid with cubes, we might not always have that available so there is a formula to help us. ·         T will share formula V = lwh ·         T will demonstrate how to find the volume of a shape using the formula o    Demonstrate with the solid used with manipulatives o    Show that the length  of the shape is 6 because 6 cubes fit across the length o    Show that the width of the shape is 4 because 4 cubes fit across the width o    Show that the shape is 2 units high because two cubes are the same height as the solid o    Multiply 6 x 4 x 2 to get 48 same as what we did when we filled the shape o    Demonstrate another example without manipulatives §  Identify the height, width  and length but putting a H, L and W next to those measures §  Multiply the three measures together to get the volume §  Stop and discuss the units for volume – ask students to show the fingers for the exponent that represents “cubed” §  Explain to students that since we are multiplying 3 dimensions together our units are cubic units (Relate to how area is square units) ·         S will find the volume of the shape ·         Connect volume with filling a shape Skills Time (9:35- 9:50) /(11:05-11:25) ·

Lesson Resources

 Geometry Notes Volume of Rectangular Prisms 2,081 21 4volume hw 1,181 21 4volume practice 1,243 U9.L16.SHAPES.Volume.docx 1,350