Today we took a quiz over the unit Circle for 24 pts. If you missed class, you need to make this up in class next time.
I will be getting all grades posted within the next 48 hours. If you still see a mistake after that, show me your graded paper as I go around the room taking grades.
We are wrapping up the 3-D/Volume Unit in most classes.
Quiz dates (42 pts, topic list distributed next class):
Mon, May 13 - 0B
Tues, May 14 -1st, 2nd, 4th
Wed, May 15, 6th
Because of differing schedules, we are still slightly off and the assignments listed are as accurate as I can locate. It has been brought to my attention that I did not put the 4th period assignment on the screen, so I am guessing on that one.
New content today by class:
All classes did a warm-up over unit circle (2 problems) and a "solid of revolution" problem on graph paper. That problem is attached below.
1st - 2nd: we demonstrated that the volume of a sphere is 2/3 of the volume of a cylinder with the same radius and a height of 2r (a "square" cylinder). The volume of that cylinder is 2*Pi*r^3. 2/3 of that is 4/3 * Pi * r^3. So a hemisphere is 2/3 instead of 4/3.
We went through an inductive proof (from the textbook) about the surface area of a sphere, which is 4*Pi*r squared. A hemisphere is 3*Pi*r squared because it has a base that is an "extra" circle.
In 4th period, we did not get to the surface area, we learned about volume of irregular solids and working with density, mass, and volume in relationship. This information is well-explain on p 558 of textbook.
In 0B we finished up all content for the unit as listed in 1st and 2nd with a little bit longer assignment.
In 6th, we are a day behind. We did get to displacement and density and a quick explanation (with beans) for the volume of a sphere.
Homework #14
1st-2nd: p 563:1-6, P 567: 1-4,8. Show work and use of formula. On 1-3 on p 567, just do surface area, not volume.
4th: p 559:1-7, p 563:1-7.
HW #13 - B day
0B - p 560:9, p 563-4: 1-6, 10-11, p 567-8: 1-6, 10-11
6th - p 559-60: 1-7,9, p 539-70: 27-29, 32-35.
Quizzes will be graded by the next class.
Final review materials will start going out Monday next week.
Attached: notes over volume and surface area of sphere; quiz topics for unit quiz, solid of revolution problem and answers.
I will be getting all grades posted within the next 48 hours. If you still see a mistake after that, show me your graded paper as I go around the room taking grades.
We are wrapping up the 3-D/Volume Unit in most classes.
Quiz dates (42 pts, topic list distributed next class):
Mon, May 13 - 0B
Tues, May 14 -1st, 2nd, 4th
Wed, May 15, 6th
Because of differing schedules, we are still slightly off and the assignments listed are as accurate as I can locate. It has been brought to my attention that I did not put the 4th period assignment on the screen, so I am guessing on that one.
New content today by class:
All classes did a warm-up over unit circle (2 problems) and a "solid of revolution" problem on graph paper. That problem is attached below.
1st - 2nd: we demonstrated that the volume of a sphere is 2/3 of the volume of a cylinder with the same radius and a height of 2r (a "square" cylinder). The volume of that cylinder is 2*Pi*r^3. 2/3 of that is 4/3 * Pi * r^3. So a hemisphere is 2/3 instead of 4/3.
We went through an inductive proof (from the textbook) about the surface area of a sphere, which is 4*Pi*r squared. A hemisphere is 3*Pi*r squared because it has a base that is an "extra" circle.
In 4th period, we did not get to the surface area, we learned about volume of irregular solids and working with density, mass, and volume in relationship. This information is well-explain on p 558 of textbook.
In 0B we finished up all content for the unit as listed in 1st and 2nd with a little bit longer assignment.
In 6th, we are a day behind. We did get to displacement and density and a quick explanation (with beans) for the volume of a sphere.
Homework #14
1st-2nd: p 563:1-6, P 567: 1-4,8. Show work and use of formula. On 1-3 on p 567, just do surface area, not volume.
4th: p 559:1-7, p 563:1-7.
HW #13 - B day
0B - p 560:9, p 563-4: 1-6, 10-11, p 567-8: 1-6, 10-11
6th - p 559-60: 1-7,9, p 539-70: 27-29, 32-35.
Quizzes will be graded by the next class.
Final review materials will start going out Monday next week.
Attached: notes over volume and surface area of sphere; quiz topics for unit quiz, solid of revolution problem and answers.
|
|
solid_of_revolution_warm-up.pdf |