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Math slide

  1. 1. How many People do you hear say<br />“I Can’t do English”<br />
  2. 2. Yet, many of those same say<br />“I Can’t do Math”<br />
  3. 3. Not just students<br />
  4. 4. But Teachers<br />
  5. 5. Remarkably<br />I hear English teachers <br />Say<br />“I’m an English Teacher, <br />I don’t do math”<br />
  6. 6. I never Say<br />“I’m a math teacher, I don’t do English”<br />
  7. 7. English is Hard, Math is Easy<br />Math rule Exceptions<br />None<br />The rules for math always apply no matter the situation.<br />English Rule Exceptions<br />I before e, except after c<br />ea makes e sound, or maybe not. <br />Put ing at end of word, but sometimes double the consonant.<br />Here is the most important English rule: Almost every rule is only about 90% valid!<br />
  8. 8. READ<br />Is this word RED<br />Or is it REED<br />
  9. 9. Why our Students struggle at Math<br />The average American math student does not see a “REAL” math teacher until the 6th grade.<br />Math lessons are process oriented<br />Too many math concepts taught in short periods<br />Teachers reinforce the Idea that math is somehow harder to understand than other subjects<br />History of math is not taught<br />Math as a universal language is ignored<br />Students are not taught to “think” logically<br />We hand them a calculator to do simple math<br />School House Rock no longer plays between Saturday morning cartoons. <br />
  10. 10. OK, Maybe the School House Rock one is stretching it a bit.<br />
  11. 11. Make Math Easy not Hard<br />This is how we Teach one digit by three digit Mulitplication.<br /> ₂ ₄<br /> 436 We start right to <br />x 8 to left and carry<br /> 3 4 8 8<br />This is how we should Teach<br />
  12. 12. Place Value<br />Place Value<br />Place Value<br />
  13. 13. We Group our numbers in Tens.WHY?<br />
  14. 14.
  15. 15. Normally we express numbers in base 10,<br /> because we were born with Ten fingers,<br /> but we could express numbers in any positive integer >1<br />Other Popular Bases are<br />Binary (Base 2)<br />Uses only 0 and 1<br />Octal (Base 8)<br />Uses 0, 1,2,3,4,5,6,7<br />Our money uses Base 10 and Base 5 groupings<br />
  16. 16. Teaching Students about Place Value is the most important thing we can do.<br />Dollars, Quarters, Nickels, dimes, and Pennies<br />Some of these coins are grouped in tens, others in fives. Tell me which ones?<br />
  17. 17. Converting Base Numbers<br />46 Base 10 converted to Base 5 is 141<br />Example<br />46 base 10 is 141 Base 5 is<br />4 tens = 40 1 twenty-five = 25<br />6 ones = 6 4 fives = 20<br /> 46 1 one = 1<br /> 46 <br />Both numbers have the same value, but are written differently<br />
  18. 18. Make Ten add the Rest<br />Take 2 away from six to make the 8 ten, the add the 4 so it equals 10+4 or 14<br />Same can be done for 100. Make Hundred then add the rest<br />
  19. 19. Finding humor in math can make it more interesting<br />
  20. 20. “Mathematics is like checkers in being suitable for the young, not too difficult, amusing, and without peril to the state.” -- Plato<br />