Hope you enjoyed the video!
Thanks for watching!
You have remaining on your free trial.
4 Free Lessons Left
Get unlimited access to all videos and lesson plans with a membership.
So you can keep watching more great videos in class, ask your teacher or principal to get a School plan membership.
We hope you enjoyed trying 5 lessons!
Become a member to get full access to our entire library of learning videos, reading material, quiz games, simple DIY activities & more.
Plans & PricingCreate a free account to continue watching
Welcome to Our New Math Lessons!
Your subscription is currently only to our science lessons.
5 Free Math Lessons Left
Add Math To My Plan (+$50/yr)We hope you enjoyed sampling 5 Math Lessons!
Your subscription is currently only to our science lessons.
Add Math To My Plan (+$50/yr)0 Free Math Lessons Left
Oops! It looks like your security settings are blocking this video 🙁
If you are on a school computer or network, ask your tech person to whitelist these URLs:
*.wistia.com, fast.wistia.com, fast.wistia.net, embedwistia-a.akamaihd.net
Sometimes a simple refresh solves this issue. If you need further help, contact us.
Calculate Volume (l x w x h)
Sorry, student links are only for classroom & school accounts.
Please login to generate a student link.
Generate Student Link
- Show lesson plan & teacher guide
- Show answers to discussion questions
- Show video only
- Allow visiting of other pages
- Hide assessments
What you will learn from this videoWhat you will learn
- VOLUME is the amount of space inside a 3D object.
- That the formula for finding the volume of a rectangular prism is length x width x height!
- And we'll see that this knowledge can help us take care of pets, ship things in the mail and even rescue animals.
- Discussion Questions
Before Video
Find the area of a rectangle that has length 20 cm and width 7 cm.ANSWER140 square cm.
When I find area, I find the number of unit squares I can tile an object with. The units that I use to measure are unit squares.
Jason is not correct. The area is 50 square inches, not 50 inches.
Marguerite is planning a garden. It is a rectangle with length 5 meters and width 3 meters. What is the area of her garden?
The area is 37 square cm. I multiplied 3 times 4 to find that the area of the first rectangle is 12 square cm. I multiplied 5 times 5 to find that the area of the square is 25 cm. I added the two areas together to find the area of the figure.
After Video
What is the volume of a rectangular prism that has length 3 feet, width 2 feet and height 5 feet? Explain your process. ANSWERThe volume is 30 cubic feet. I multiplied 3×2×5.
When I find volume, I find the number of unit cubes required to fill the object. The units that I use to measure are unit cubes.
Mio is not correct. The volume of the box is 120 cubic cm. I think Mio added the measurements instead of multiplying, and used units instead of cubic units.
Roberto has a fish tank in the shape of a rectangular prism that measures 2 feet by 3 feet by 2 feet. What is the volume of the fish tank?
One rectangular prism has a volume of 7 × 2 × 3 = 42 cubic cm. The other rectangular prism has a volume of 4 × 6 × 2 = 48 cubic cm. I added 42 cubic cm and 48 cubic cm and found that the volume of the figure is 90 cubic cm.
- Vocabulary
- Volume DEFINE
The amount of space inside a 3-dimensional object.
- Formula DEFINE
A rule written with mathematical symbols. V = l×w×h is a formula.
- Rectangular Prism DEFINE
A 3-dimensional solid shape that has 6 faces.
- Length DEFINE
A measure of how long an object is.
- Width DEFINE
A measure of how wide an object is.
- Height DEFINE
A measure of how tall an object is.
- Unit DEFINE
Used to measure; for example: inch, square foot, cubic meter.
- Square unit DEFINE
Used to measure, a square that is 1 unit long and 1 unit wide.
- Cubic unit DEFINE
Used to measure, a cube that is 1 unit long, 1 unit wide, and 1 unit tall.
- Volume DEFINE
- Reading Material
- Practice Word Problems
- Practice Number Problems
- Lesson Plan
- Teacher Guide