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Warm Up. ____ groups of 8 make 64 ____ x 8 = 64 Draw array: . 476 206 + 325 - 125. Target the Question. A Baird’s Beaked whale is 38 feet shorter than a Fin whale. How long is the Baird’s Beaked whale?. Ten Minute Math Quick Images. Show image for 3 seconds
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Warm Up ____ groups of 8 make 64 ____ x 8 = 64 Draw array: 476 206 + 325 - 125
Target the Question A Baird’s Beaked whale is 38 feet shorter than a Fin whale. How long is the Baird’s Beaked whale?
Ten Minute Math Quick Images Show image for 3 seconds Write several different equations to find the total number of dots Try to look for groups of patterns in the image First View…
Ten Minute Math Quick Images Take a couple of minutes to write down equations. You may find it helpful to draw the image, jot down information about what you saw or write equations. Second view…
Ten Minute Math Quick Images You may want to revise your drawings, notes, or equations on the basis of the second viewing. After a few minutes, show the image again for the third time, but leave the image displayed. Would anyone like to explain how they saw the image (including any revisions they made)? How were you able to remember this image after seeing it briefly? What did you notice in the image that helped you?
Counting Around the Class • Today we are going to count by 100s. • If we count around the class by 100s and everyone says one number, what number will we end up on? Explain your reasoning behind your answer. • Stop at 1,000: How many students have counted so far? What multiplication combinations do you know that can help you figure this out? • Stop at 1,500: How many students have counted so far? What multiplication combinations do you know that can help you figure this out? • Stop at 3,000: How many students have counted so far? What multiplication combinations do you know that can help you figure this out?
Finding Factors of 16 & 48 • Yesterday, we realized that the factors of 100 are also factors of 200 and 300. We are going to try this idea with other numbers. • For example, 16 and 48. • What are all the factors for 16? 1, 2, 4, 8, 16 • Is 16 a factor of 48? Why or why not? • Today's question: Are all factors of a number also factors of a multiple of that number? Are all the factors of 16 also factors of 48?" • Why is it true or isn't true that factors of a number, such as 16, are also factors of a multiple of that number, such as 48. And will this be true for other numbers? 16 + 16 + 16 32 48
Discussion • Work with your shoulder partner to prove if the factors of 16 are also some of the factors of 48. • Why is this true or not true? • What about other multiples of 16? • For example, home many is four 16s? • Do you think all the factors of 16 are also factors of 64? Can you draw or make something to convince us that that's true, so we don't have to try out each factor? • Do you think this is always true? Will the factors of any number be factors of all multiples of the numbers?
Independent Practice Factors of Related Numbers Mentoring Minds p. 61 Play Multiple Turn Over