Tuesday, June 14, 2011

Math: Exam Review p.2


Write an addition statement for the following diagram


5 + (-12) + 4 = (-3)

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Variable is an unknown number

expressions contains variables, operations. and numbers, in any combination.
(not an equal sign)

Practice finding the pattern
eg. 24, 21, 18, 15. . .
and write equations for the patterns
e.g 27-3n

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Plot ordered pairs and determine whether or not they make a pattern

Determine the linear relation (equation) from a graph or table of values





Y= 2x

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Mean - add up all values divided by how many values three are.

Median - the middle number in a set of ordered values, might be the mean of 2 middle values.

Mode - the value that shows up the most.

Range - positive difference between largest and smallest values

Outlier - values that are too big or too small compared to the other values. (Big one take away the little one)

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Write expressions or equations when given pictures
eg.


Create diagrams or pictures when given the expression of equation.

Expression:
3x - 4

Equation:
2y + 3 = 15




5 comments:

philip7 said...

i liked your post but it was a little long you should split it into two or three posts

abby873 said...

Hi Danilyn! I really liked your scribepost it explained every bit on what we needed to know for the exam! I liked how the images made sence to what you were talking about! it was really clear. to make your post better you could've changed the color of the font and made it a bit bigger! but other then that heres another video that can help you with your scribepost! ggodjob! http://www.youtube.com/watch?v=NSkpEFwf1M0&feature=related

hannah816 said...

Hi Danilyn. Great scribe post! It is very detailed. I suggest you make your font size larger and add colors to your font so it makes it easier to read, but it was easy to understand! The images are great, it explains what you're trying to say. Good job! Here is a video : http://www.youtube.com/watch?feature=player_embedded&v=G6fPIVeS_-A
Here is a link/game : http://ca.ixl.com/math/grade-7/does-x-satisfy-the-equation

Diana814 said...

Hi Danilyn! I like how you put a lot of picture and explained it very clear. But I think you can add more color. But other than that you did a great job!

irena814 said...

Hi Danilyn, great scribe post! Your scribe post was very well organized and easy to understand. I liked that you added pictures with your examples. It helped understand more about the mean, median, mode, range, and outlier. But to make you post even better, I think you should use different colors for the font and you should make the font a little bit larger. I noticed you didn't have a link and a video so here's one I'd found:

http://ca.ixl.com/math/grade-7/calculate-mean-median-mode-and-range

http://www.youtube.com/watch?v=81zcjULlh58