1. 1 The Science and Mathematics of Natural Disasters Scientific notation through powers of ten, Louisiana wetlands Mathematics Day Three

2. 2 (SMP) 2 Institute Staff 2006 July 10 – July 14 July 24 – July 28 Dr. Sherry Herron, Dr. Shelia Brown, Dr. Sharon Walker, Dr. David Beckett Science Dr. Myron Henry *, Mrs. Lida McDowell *, Mrs. Mary Peters Mathematics * Responsible for Katrina Mathematics Materials

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4. 4 Day Three Mathematics Topics powers of ten expanded form of rational numbers in base ten distributive property, multiplicative identity rules of exponents operations with numbers in exponential form scientific notation conversion of linear units of measurement orders of magnitude scale

5. 5 Day Three Partial Objectives from the 2007 Mississippi Mathematics Objectives (Revised) 5 th grade 1b (Compose and decompose seven-digit numbers and decimals through thousandths in word, standard, and expanded forms) 2c [Apply properties of basic operations to solve problems ( distributive, multiplicative identity properties)] 6 th grade 2d [State the following properties and apply them in solving problems (distributive and multiplicative identity properties)] 7 th grade 1e (Explain the relationship between standard form and scientific notation), 1f (Multiply and divide numbers written in scientific notation), 4a [Convert from one unit to another, perform basic operations, and solve real-world problems using standard (English and metric) measurements] 5c (Construct and interpret scatter plots) Pre-Algebra 1d (Simplify and evaluate expressions using order of operations), 2a (Simplify and evaluate numerical and algebraic expressions) 5d (Construct and interpret scatter plots)

6. 6 Day 3 of the 2006 South Mississippi Science and Mathematics Partnership Program [ (SMP) 2 ] 8:30 am to 10:15 am: VCS math, QKS sci 10:15 am to 10:30 am: break 10:30 am to 12:30 pm: VCS math, QKS sci 12:30 pm to 1:00 pm: Lunch 1:00 pm to 3:00 pm: QKS math, VCS sci 3:00pm to 3:15 pm: break 3:15 pm to 5:00 pm: QKS math, VCS sci

7. 7 Decimal numbers: What do we really mean? Multiples of 10, multiples of. 10 to powers or exponents, to powers or exponents. Expanded form. The decimals 10., 1., 0.1, 0.01, 0.001, are names for what rational numbers or fractions?

8. 8 Top row: multiples of tens Middle row: powers of ten (just names for multiples of ten) Bottom row: decimal names for multiples of ten Place Value Chart in Base Ten

9. 9 What does 342.67 really mean? It means the following. Arrive at a similar result for

10. 10 Moving the gator decimal point to the left using division by powers of ten!

11. 11 Moving the decimal point to the right using multiplication by powers of ten! Try these operations. I’ve moved too!

12. 12 Exponents and Scientific Notation A number is in scientific notation if the number is in the form of To change 342.67 to scientific notation, we will need to move the decimal point 2 places to left which we have seen means we should divide by 100.

13. 13 Loss of Wetlands The loss of the values provided by wetlands impacts watershed residents, plants, and animals. Losing one acre of wetland may not seem devastating. Yet, the cumulative affect threatens the value of remaining wetlands and impacts the entire watershed...residents, plants, animals, water quality and quantity. Already more than half the wetlands in the lower 48 states have been destroyed.

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16. 16 In the empty cells, convert to scientific notation through powers of ten. (See next slide for answers.)

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19. 19 Recall Katrina’s wind speed given in miles per hour (mph). Use the measurement conversions given in the previous slide to convert wind speed in miles per hour (mph) to wind speed in kilometers per hour.

20. 20 Your Work

21. 21 Tale and Scale of Natural Disasters (Using an Orders of Magnitude Scale) Size (meters) Age (years) Linear Scale

22. 22 Tale and Scale of Natural Disasters Size (meters) Age (years)

23. 23 See Next Slide for Entries

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25. 25 Tale and Scale of Natural Disasters Size (meters) Age (years) See Next Slide for Entries on the Graph

26. 26 Size (meters) Tale and Scale of Natural Disasters Age (years) A.Observable universe B.First Homo sapiens C.Prokaryotes (first cells) D.Eukaryotes (first cells with nuclei) E.Earth F.First atoms G.Water molecule H.Hurricane Karina I.Our sun J.Our moon