Sunday, May 14, 2006

Growing Post

(May7-13)

[1] Rotational Symmetry is symmetry with respect to rotation. For example, if a shape is rotated from any point and the shape will still be the same, preserving orientation.

Reflection Symmetry is the most common sype of symmetry. It is with respect to reflection meaning that, if you had an imaginary line going down the middle of most shapes, each side would look exactly the same.

[2]




















[3] This pattern starts out as a column of 3 tiles. 1 column of 3 tiles [or just 3 tiles] are added each step to the pattern. This will can go on forever and will eventually make a horizontal recatngle.

[4]












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(May15-20)

[1] A)


















B) 180+25(M)

C)Jack would have 1380 cards by the time he turns 12.

[2] A) Jackie should order 2 pizzas.

B) She would need to order 2 more pizzas.

[3] A) $200

B) 20+25n=Total Savings


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(May23-26)

[1] An equation comes with the value of the variable(s) that are given, while in expressions, the value of variable(s) can be chosen.

Equation: 8+2n=20

Expression:8+2n=

[2] Variables are numbers that has an unknown value with the potential to change. Variables can be in equations or expressions.

[3] N=11 because:

circles=1

1 square=2 circles

1 triangle=5

2 'N''s=22(6 squares and 2 triangles) 22/2=11

[4] A) 3n+4n+7=2n+12 > 7n+7=2n+12 > 7n=2n+5 > 5n=5 > n=1

B) 8n-(4+9)=11 > 8n-13=11 > 8n=24 > n=3

C) (8-3)n+7n+8=4n+40 > 5n+7n+8=4n+40 > 12n+8=4n+40 > 12n+4n+32 > 8n=32 > n=4

[5]







7 Comments:

At 5:11 PM, Blogger -rain- said...

This comment has been removed by a blog administrator.

 
At 5:23 PM, Blogger -rain- said...

GGGGGood job kris..... happy .... lol

 
At 9:44 PM, Blogger Mr. Reece said...

great growing post Kris

 
At 1:51 PM, Blogger Mr. Reece said...

Great job using a more creative pattern Kris. Your mark is 18/20.

 
At 5:35 PM, Blogger Mr. Reece said...

This comment has been removed by a blog administrator.

 
At 6:04 PM, Blogger Mr. Reece said...

you made a mistake in 2b and 3b. Your mark is 13/17

 
At 11:08 PM, Blogger Mr. Reece said...

Kris you did a great job. The only 2 small concerns. first with an equation you have the solution/answer. With an expression you do not have an answer, the answer is determined by what number you assign to the variable. this means that the variable can equal more than one number.

The other problem is with your graph. The minutes should be on the x-axis, with the distance on the y-axis as the time determines how far the 2 people have raced.

 

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