Sunday, December 2, 2012
12/2/12 Math Journal
Relate your understanding of unit rate and proportionality to that of rate of change and slope. How are they similar and how do they differ? How can one use their understanding of unit rate and proportionality to interpret real world rate of change/slope problems presented in graphs.
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Unit rates and rates of change are similar and different in many ways. When you think of unit rate, you refer to ratios and if you refer to rate of change, it would be referred as slope. When you find the unit rate, it would be the average/result of the problem asked; when you find the rate of change, it would be the line's slope for the coordinates given on a graph. Someone can use their understanding of unit rate and proportionality to interpret real world rate of change/slope problems presented in graphs by finding the average of the real world problem. The average relates to the slope so once you find it, the problem becomes much clearer.
ReplyDelete2a. introduce a topic and
ReplyDeleteorganize ideas - 2
2b. Develop the topic with
evidence - 2
2c. Use appropriate and varied
transitions to create cohesion - 2
2d. Use domain-specific
vocabulary to explain the
topic - 3
2e. Establish and maintain a
formal style and objective tone - 3
2f. Provide a conclusion - 2
14/24 = 75% (Level 2)
Daniel, while you began to demonstrate your developing understanding of unit rate related to proportionality and rate of change, you did not go into full detail about the relationship between the unit rate of y/x and the slope of a line in direct variation (proportional relationship) equation. Also, please include an introduction as well as a conclusion to fully answer the question. Be sure to support your statements with evidence from what we have learned in class.