Charmaines B.O.B

Rectangular Prism: Volume and Surface Area

In my B.O.B we are going to find out the

volume and the surface area of this

rectangular prism.

Surface Area

Here is my formula for my rectangular

prism.

2 ( 4 x 2 )+ 2 ( 1 x 2 )+ 2 ( 4 x 1 ) =
2 (8 cm2 ) +2 ( 2 cm2 ) + 2 ( 4cm2 ) =

16 cm2 + 4cm2 + 8cm2 = 28 cm2

The second way in finding the surface

area.

2cm 2 + 2cm2 + 4 cm2 + 4 cm2 + 8cm2

+ 8 cm 2 = 28 cm2

Volume

Now here is the volume for my rectangular

prism.

( L x W ) x H = area or you can also use.......

Area of the base x height

Formula :

( L x W ) x

H = area
L = 8

W = 4

( L x W ) x H H = 1

( 8 x 4 ) x 1 =32 x 1 = 32 cm3

Or the other way is

Area of the base x height = area of a rectangular

prism. The area of our base is 32 and 32 x our

height would be 32 x 1= 32 cm 3.

Charmaine's Scribe

Charmaine and Kathleen's Scribe

Today in class we learned about dividing fractions and
how to do it correctly. We used a ratio table method to
solve these questions that we are about give you.

Now we are going to answer these questions together
one step at a time:
step one;

Make a ratio table and make the two signs cans/rooms



We showed all the steps in the voicethread and sort of try to explain
the steps on the easiest way possible.


By Charmaine And Kathleen

Charmaine's 2nd Growing Post

Charmaine's 2nd Growing Post





1. What strategies where being used ?
The strategies being used were using a money, pictures, and ratio tables to solve the problems.
2. How did you use these strategies ?
I used these strategies by using money and ratio tables to show how i got the price of each cup and how much ingredients were in each bag. I also used pictures to show how 1 half of 1/2 is 1/4 and so on.



3. Or how could you have used these strategies ?
I did use all of these strategies ? But i could have used it in more of a organized and easy to understand way then i did use before.
4.How would you figure out the price of a 6 cup bag of Betty's Snack mix?
Use a ratio table
5.Find 3 other values (amounts of Snack Mix) that could be solved using the same ratio table. Find the $$ of your new container sizes. My three new containers are 60, 10 and 1. Which price is $90.00, $15.00, and $1.50.



Rubric
Marking Rubric For your second Growing PostGrowing Post Question 1 Betty's Snack Mix Total (15 marks)

Answers all questions 5 marks (1 per Question)

Quality of Answers 10 marks
10= Perfect
8= Great Job but there is room for improvement
7= Good Job but there is much room for improvement
6= Decent job but you need to work harder
5= All work is done but effort is lacking
Less than 5 would be for questions answered incorrectly and without effort and incomplete.

Growing Post Question 2 (10 marks)

Embeds the voicethread after question 1 (1 mark) 1
Creates the Voicethread to answer Question (1 marks) 1
Add Comments to further elaborate on the strategies used (1 per comment left) Max 4 marks
Math work is correct in the voicethread (4 Marks) 2

Bonus marks for any person doing more than 4 questions

Growing Post Question 3 (14 marks)

Uses Pictures or a voicethread to answer the question (3.5 Marks) 3.5
Explains the 7 strategies using 7/8 and 11/12 (7 Marks) 5
Comments on the voicethread (3.5 marks .5 per comment) 2.5

Question 4 Sharing Pizza's (15 marks)

Clearly shows How much pizza does each student get in the different groups? (4 marks) 4
Shows which group gets the largest portion of Pizza (2 marks) 1
Show how you found your answer in 2 different ways. (4 marks) 3
What strategies did you use in finding your answer. Student must show strategy and explain how it was used.(2 marks) 1
Added comments on voicethread or added detail to explanations (3 marks) 2

Total Math Work (54 marks)

Formatting (21 Marks)

Proper title (2 Marks)2
Proper labels (3 marks)3
Only one post and no drafts left in dashboard (2 marks) 2
Questions are in the proper order (4 Marks) 4
Post looks pleasing (10 Marks) 9

Pictures are lined up, text is left justified etc

The post looks professional and not piecemeal.

Completing Self Evaluation and leaving a comment (10 Marks) 7
Completing 2 Peer Evaluations Leaving comments on the Growing Post and
Voicethreads (20 marks) 10 marks per student 9

Total Marks for Growing Post ( 105 Marks) (58)
Growing Post Completed on time 0 mark deduction
Completed 1 day late 10 mark deduction
Completed 2 Days Late 15 Mark Deduction
Completed more than 2 days late Mark Deduction