Warmup
How many cubes with an edge length of 1 inch fill this box?
Activity #1
Exercise on Multiplication/Division of Whole Numbers with Fractions.
Activity #2
Volume of a Prism with Decimal Lengths.
(1.) length = 1.2, width = 3.6, height = 4.8
(2.) length = 6.2, width = 7.2, height = 7.4
(3.) length = 0.2, width = 0.6, height = 0.8
(4.) length = 1.5, width = 1.5, height = 1.5
Activity #3
Application of Multiplication with Fractions.
Lin and Noah are packing small cubes into a larger cube with an edge length of inches. Lin is using cubes with an edge length of
inch, and Noah is using cubes with an edge length of
inch.
Who would need more cubes to fill the -inch cube? Explain your reasoning.
If Lin and Noah each use their small cubes to find the volume of the larger -inch cube, will they get the same answer? Explain your reasoning.
Challenge #1
A rectangular prism measures inches by
inches by 2 inch. Priya said, “It takes more cubes with edge length
inch than cubes with edge length
inch to pack the prism.” Do you agree with Priya? Explain your reasoning.
Challenge #2
(1.) What is the volume, in cubic inches, of a cube with edge lengths of inch? Explain or show your reasoning.
(2.) Four cubes are piled in a single stack to make a prism. What is the volume?
(3.) For each volume of each prism with cubes measuring ½-inch.
Challenge #3
A pool in the shape of a rectangular prism is being filled with water. The length and width of the pool is 24 feet and 15 feet. If the height of the water in the pool is feet, what is the volume of the water in cubic feet?
Quiz Time
https://www.ixl.com/math/grade-5/volume-of-cubes-and-rectangular-prisms-with-decimal-side-lengths