Warm up was to find the circumference of a circle given its area. Did a similar problem in small groups which involved finding the surface area of a cylinder given its height and volume. Then looked at cones and their important features/vocab and also saw why their volume formulas are so similar to the cylinder volume formula except for a fractional component. Also briefly talked about prisms and how to find their volume and surface area (at least for rectangular prisms).
Notes from board
Homework
p. 505-6: #3,5,6,8,11, 12
continue studying formulas at http://bit.ly/formulas18
Resources
find circumference given area: link
lateral (rectangular) surface area of cylinder: link
rectangular prism surface area: link
cylinder surface area: link
Warm ups dealt with finding radius of a cone given its height and volume, and finding volume of a cylinder given its surface area and radius. Looked at why the cone surface area formula works, then did a snow-cone related problem both volume and surface area. (Some classes already did that and instead finished the coin carpet problem.) Then learned about the volume and surface area formulas for a sphere and did a problem involving finding volume given diameter. Finally, started learning about density and categorized a rock using its mass and dimensions to find volume.
Notes from board
Homework
p. 521-22: #2,4,8,11,12,14
continue studying formulas at http://bit.ly/formulas18
first Q4 assessment: Weds 3/28 for 1B, Thu 3/29 for 234A
Resources
explanation for why cone surface area works: link
finding lateral surface area of cone: link
volume of a cone with same radius/height as cylinder: link
using density to find mass of object by calculating volume: link