...go back inside!
I the course of two weeks we went from -20 F to 50 F here in southwest Minnesota! That got me and the kids thinking about temperatures. We often have "guess the temp" contests when we drive past the bank. which displays the temperature in both F and C. DJ's guess was a bit off for for F, but right on in C.
Then we wondered, "is there any temperature that is the same number in both measuring system. That is today's challenge: Using only the formula for temp conversion, find the temperature that is the same in both Fahrenheit and Celsius.
Here is the formula: F = C x 9/5 + 32
Or the other way around: C = (F - 32) x 5/9
This will take some 'guess and check' but you can do whatever you put your mind to.
By the way, the Robotics Expo was awesome!
Showing posts with label math. Show all posts
Showing posts with label math. Show all posts
Feb 6, 2011
The 'What's the Highest Score an NFL Team Could NOT Earn in the Super Bowl?' Puzzle
I am not nearly as interested in the Super Bowl as my kids. One thing I do enjoy is trivia or number challenges. Here is a combination of the two: a football number challenge.
What is the HIGHEST score an NFL team could NOT in the Super Bowl while playing on offense (meaning no Safeties, which is a defensive score). Assume that there is NO TIME LIMIT to this game.
The only ways to score are:
No Googling the answer, as I am certain someone has already worked it out. Instead, see how close you can get. I will be working on it as well, as I do not yet know the answer.
Post your answer in the COMMENTS, and I will keep them hidden for some time so everyone can try it out for themselves.
What is the HIGHEST score an NFL team could NOT in the Super Bowl while playing on offense (meaning no Safeties, which is a defensive score). Assume that there is NO TIME LIMIT to this game.
The only ways to score are:
• TOUCHDOWN
• FIELD GOAL
• 1-EXTRA-POINT CONVERSION (can only be earned after a touchdown)
• 2-EXTRA-POINT CONVERSION (can only be earned after a touchdown)
No Googling the answer, as I am certain someone has already worked it out. Instead, see how close you can get. I will be working on it as well, as I do not yet know the answer.
Post your answer in the COMMENTS, and I will keep them hidden for some time so everyone can try it out for themselves.
Dec 8, 2010
Celebrating my birthday -- with an equation
Inevitably, each year on my birthday, the students (and my kids) want to know how old I am.
Although I am not adverse to sharing my age, I never tell them directly. Instead I make some sort of math problem which has an answer that is equal to my age. Sometimes I even try to throw in a pattern or some number series, if possible.
Here is this year's birthday equation:
(3 x 4) + 5 + 6 + 7 + 8
Then, whenever a student has figured it out, I will tell him or her not tell until tomorrow, so everyone has a chance to figure it out. Who knows if they do, but they do have meaningful discussions about the numbers. My birthday equation 2 years ago looked like this:
but I added this equation:
I heard one group of kids make the observation that "Of course they equal the same, because no matter what you take times 1, it is the same number!" Referring to the part of the problem in parentheses. Another student pointed out that this equation also worked with out the one:
One year, I had the students take a few minutes and see how many problems they could write with my age as the correct answer. This was a meaningful task for all as the students would work at their own level, and each could have a correct answer. We posted them on the board and a number of students added new ones throughout the day.
How do you celebrate your birthday?
Although I am not adverse to sharing my age, I never tell them directly. Instead I make some sort of math problem which has an answer that is equal to my age. Sometimes I even try to throw in a pattern or some number series, if possible.
Here is this year's birthday equation:
(3 x 4) + 5 + 6 + 7 + 8
Then, whenever a student has figured it out, I will tell him or her not tell until tomorrow, so everyone has a chance to figure it out. Who knows if they do, but they do have meaningful discussions about the numbers. My birthday equation 2 years ago looked like this:
1 + 2 + 3 + 4 + 5 + 6 + 7 + 8
(1 x 2 x 3) + 4 + 5 + 6 + 7 + 8
(2 x 3) + 4 + 5 + 6 + 7 + 8
One year, I had the students take a few minutes and see how many problems they could write with my age as the correct answer. This was a meaningful task for all as the students would work at their own level, and each could have a correct answer. We posted them on the board and a number of students added new ones throughout the day.
How do you celebrate your birthday?
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