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Published byMaude York Modified over 9 years ago
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1-2 DAY 1 Linear Measurement
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Bellringer What is ¾ + 5/6 ?
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Unlike a line, a line segment, can be measured because it has two endpoints. A segment with endpoints A and B can be name AB or BA. The length or measure of AB is written AB.
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Introduction to measurement Inches
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Centimeters
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A standard ruler
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Challenge… With your shoulder partner, find something in the room that is A) 5 inches B) 3.7 cm C) Measure the length of Partner A’s pencil/pen in inches D)Measure the length of Partner B’s pinky finger in centimeters
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Segment Addition Postulate If M is between P and Q, then PM+MQ=PQ PM Q
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Two segments having the same measure are congruent ( )
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Partners take turns, one solving a problem while the other coaches. 1. Partner A solves the first problem. 2. Partner B watches and listens, checks, coaches if necessary, and praises. 3. Partner B solves the next problem. 4. Partner A watches and listens, checks, coaches if necessary, and praises. Rally Coach
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Partner A- Draw DE that is 3 1/16 inches long. Partner B- Draw FG that is 2 ¾ inches long.
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Partner A, Find LM, if MN=2.6 cm and LN=4 cm. L M N
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Partner B, Find LN, if LM= in and MN=2 ½ in. L M N
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Scribe and Sage
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Find x and ST if T is between S and U, ST=7x, SU=45, and TU=5x-3 UTS 7x5x-3 45
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I. If W is on AB, then A is on WB. II. If W is on AB, then AW = WB. III. If W is on AB, then AW + WB = AB A. I only B. II only C. III only D. II and III E. I, II, and III Which of the following is/are true statements?
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JK=6r, KL=3r, and JL=27 Find the value of the variable and KL if K is between J and L
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Do you know ??? What are the three undefined terms in geometry ???
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JK=2s, KL=s+2, and JL=5s-10 Find the value of the variable and KL if K is between J and L
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Summary: What measurement do the little lines on the inch side of a ruler show? How many divisions are there in a centimeter on a ruler? What does the angle addition postulate say?
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