1. PACKET #7 Introduction to Mathematics

2. Definition Mathematics  A science of structure and order  Evolved from counting measuring and describing the shapes of objects  Deals with logical reasoning and quantitative calculation  Quantitative Relating to number or quantity

3. Brief History of Mathematics In Africa, a cave was found containing rocks with geometric patterns scratched into it Artifacts discovered in Africa and France dating back to the earliest times on the planet suggest people tried to quantify time. Evidence suggest that women devised counting to keep track of their menstrual cycles

4. Brief History of Mathematics II In India, the earliest mathematics is dated around 3000 B.C. in the Indus Valley Civilization  Decimal system  Weights  Right angles  Geometric shapes In China  Earliest extant mathematics dates during the Shang dynasty around 1600 B.C. Babylon (modern day Iraq) Egypt Greeks  All had B.C. timelines in regards to mathematics

5. Today… Mathematics is a science…that is used within science.

6. Simple Addition Problems Complete the following  678+345  5689+523+1298+2311

7. Simple Subtraction Problems Complete the following  45789-5786  325 - 500

8. Simple Multiplication Problems Complete the following  5693 * 9  225 * 11  625 * 25

9. Simple Division Problems Complete of the following  475 / 5  56271 / 3  56216 / 12

10. Homework Problem Set #1 56231 * 461 661349 / 9 56391164 / 14 6281 * 46 + (25 – 3) 63 / 9 * 3 + 45 (65 * (3 + 2)) – (66 / 11 + 42 * 4)

11. Fractions

12. Definition Fraction  Indicates small parts/bits of a whole  Apple example

13. Fractions—Problems Addition Subtraction Multiplication Division

14. Homework Problem Set #2 Provided in Class

15. Decimals and Rounding Rounding is the process of approximating a quantity  Round 245.678 to two decimal places  245.68  Round 245.689578 to three decimal places  245.690  Round 245.689578 to four significant numbers  245.7  Round 245.689578 to two significant numbers  250