Warm-Up How many siblings do you have?

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Presentation transcript:

1-24-13 Warm-Up How many siblings do you have? (Include yourself in this number.) Write down all of their names in order from oldest to youngest. How can you describe how far apart the responses are from the center in a data set? Let’s look at this graph. The question was, how many siblings do you have? You can see that the answers started at 0 and go up to 5. How else can we describe how far apart these numbers are? EQ: How can I find the mean absolute deviation of the Falcons’ game scores this season?

LearnZillion Video: Mean Absolute Deviation 1-24-13 Opening LearnZillion Video: Mean Absolute Deviation Students often confuse mean and mean absolute deviation because they both contain the word, “mean.” They are similar but there are some very important differences. EQ: How can I find the mean absolute deviation of the Falcons’ game scores this season?

Teacher Notes – How many siblings do you have? 1-24-13 Opening Teacher Notes – How many siblings do you have? Students often confuse mean and mean absolute deviation because they both contain the word, “mean.” They are similar but there are some very important differences. EQ: How can I find the mean absolute deviation of the Falcons’ game scores this season?

1-24-13 Work Period Complete the Guided Practice problems *In your groups* Expectations: Working quietly and efficiently in your groups Remain seated and raise your hand for help Students often confuse mean and mean absolute deviation because they both contain the word, “mean.” They are similar but there are some very important differences. EQ: How can I find the mean absolute deviation of the Falcons’ game scores this season?

1. How many pairs of shoes do you own? 3, 7, 2, 8, 3, 19, 5, 9 Guided Practice Problems Find the mean absolute deviation of the data sets below. 1. How many pairs of shoes do you own? 3, 7, 2, 8, 3, 19, 5, 9 2. How many books did you read this summer? 3, 5, 2, 3, 3, 1, 0, 4, 3, 2, 4, 4, 1, 2

1-24-13 Closing Address Misconceptions Review Guided Practice Problems Exit Slip Complete the problem below, INDIVIDUALLY! Try your best, and do not ask classmates or teacher for help Find the mean absolute deviation of set S = {-3, 3, 4, 2, -1, -1, 0, 2}. Round to the tenths place, if necessary. Students often confuse mean and mean absolute deviation because they both contain the word, “mean.” They are similar but there are some very important differences. HWK: Mean Absolute Deviation Worksheet