geometric measurement and data
DESCRIPTION
Geometric Measurement and Data. (for third grade) Emily Longman February 12, 2014. Multiplication and Addition of Area. Tiling. Multiplication. Addition. Remember:. In the last lesson, we learned that area can be measured using unit squares. . 1 unit. 1 unit. Tiling. - PowerPoint PPT PresentationTRANSCRIPT
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GEOMETRIC MEASUREMENT AND DATA(for third grade)
Emily LongmanFebruary 12, 2014
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Addition
MULTIPLICATION AND ADDITION OF AREA
Tiling Multiplication
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REMEMBER:
In the last lesson, we learned that area can be measured using unit squares.
1 unit
1 unit
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TILING
You can visualize unit squares by using tiles, like this one.
Click here to see how.
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Click on the red unit squares (tiles) and watch how they cover the
entire surface of the rectangle.
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c
Click on the red unit squares (tiles) and watch how they cover the
entire surface of the rectangle.You can add up the tiles you used – that number is your area:
Six tiles fit into this rectangle.
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MULTIPLICATION
You can also multiply the side lengths
to find the area:
3 unit squares x 2 unit squares = 6 square units
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Use the multiplicative property of area to find the area of the following examples.
Click on the correct answer:
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A. 9B. 25C. 20D. 16
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Yes! 5 x 4 = 20 units squared
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No
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5 x 4 = 20 units squared
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A. 6B. 4C. 3D. 2
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Yes! 3 x 2 = 6 units squared
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No
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3 x 2 = 6 units squared
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A. 8B. 3C. 9D. 5
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Yes! 3 x 3 = 9 units squared
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No
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3 x 3 = 9 units squared
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A. 6B. 4
C. 10D. 5
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Yes! 5 x 1 = 5 units squared
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No
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5 x 1 = 5 units squared
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HOW DID YOU DO?• If you want more practice, you can go back to retake the quiz by clicking here:
• If you’re finished, you may click here to return to the main menu and review quietly:
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SOURCES• Common Core Standard 3.MD.7.a-b• http://www.isbe.net/common_core/pls/level1/pdf/math-standards.pdf
• Office Clip Art• http://www.clker.com/clipart-answer-button.html• http://www.naturalnews.com/report_Health_Products_Discounts_0.html• http://3startiling.com.au/• http://heartofthematteronline.com/does-god-care-about-my-math-curriculum/• http://rhomany.org.uk/tag/tutorials-2/page/2/• http://excellencerehomes.com/2011/how-to-insert-the-click-to-continue-button-o
n-your-wordpress-site/• http://www.coolmath.com/prealgebra/06-properties/05-properties-distributive-01
.htm• http://vitaminsandjuice.com/distributor-bonus/• http://www.mrs-o-c.com/ied/warmupRulers.html