1 / 9

7 th Grade Geometry

7 th Grade Geometry. Calculating Surface Areas and Volume in the R eal World. 2D and 3D shapes. 3-D. Three measurements – length, width and height. Has a volume (L x W x H). 2-D. Two measurements – length and width. No volume.

jaafar
Download Presentation

7 th Grade Geometry

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. 7th Grade Geometry Calculating Surface Areas and Volume in the Real World

  2. 2D and 3D shapes 3-D Three measurements – length, width and height. Has a volume (L x W x H) 2-D • Two measurements – length and width. • No volume. http://www.learner.org/interactives/geometry/area_surface.html http://www.learner.org/interactives/geometry/area_volume.html complete exercise.

  3. Calculating Surface Area and Volume 2in. 3in 5in. 2cm. 4cm. 12cm.

  4. Find the surface area and volume of the rectangular prisms:

  5. Real world application List some real world situations where you would need to calculate surface area or volume……

  6. Group Exercise Time! In small groups find the dimensions of the room and answer the following questions: If we wanted to paint the walls and knew that one can of paint covers 350 ft², how much paint would we need to buy? How much would it cost to carpet the floor if it cost $20 per ft²?

  7. Comparison time…. Which group would be the best group to hire to carpet or paint the room? Why?

  8. Exit question: How much air is in a soccer ball which has a diameter of 8.65inches. (remember to find the volume of a sphere use 4/3 пr³, where r is the radius or half the diameter)

  9. PA state standards: 2.3.6.F Estimate and verify measurements of length, perimeter, area, volume, capacity, temperature, time, weight, and angles. 2.3.8.C Calculate volume, surface area, and degrees of angles; calculate circumference and area of circles, and use a measurement formula to solve for a missing quantity.

More Related