I am so excited to finally get my act together and join this really cool linky hosted by MissMathDork and a few of my other blogger friends, 4mulaFun, The Teacher Studio, and Teaching to Inspire in 5th.
When I was in the classroom, I loved helping my students find math in the world around them. As soon as they realized that they would be using measurement in their lives outside of school, they were more engaged in learning because they had made a personal connection. I think this linky is a grand idea!
So I love baking. And I love baking with my kids. I love how baking opens the door to mathematical discussions. One cold morning a few weekends ago, my kiddos wanted some homemade berry muffins for breakfast. They wanted me to use my step-mom's recipe because her blueberry muffins are the best I have ever had. The problem is that her recipe only makes a half dozen muffins. Problem! There are 5 people in my family, and we all like to eat more than 1 muffin. We also like to get the same number of muffins if possible, so I had to think about how many muffins I needed to make in order for us each to get the same number…..I felt some math coming on! Factors at its finest!
I didn't have muffin clip art, so I used cupcakes…just pretend they are muffins ;) Ok, so if a half dozen is 6, then I need to figure out the lowest common factor of 6 (for the muffins) and 5 (for my family). I don't have to use the lowest common factor, but I have limited ingredients :)
So I needed to make 5 batches so we would all have the same amount. Which works out to be 6 muffins per person, which may seem like a lot, but like to eat!
So now that I knew I needed to multiply my ingredients by 5, I was ready to begin!
All the ingredients that were while numbers were pretty easy to adjust because whole numbers are easy to multiply in your head…usually ;)
The ingredients that were fractions or mixed numbers were a bit trickier, especially for my son Dominic.
|He's ready to begin!|
So the ingredients that were fractions or mixed numbers were the sugar and salt. Not too many, thank goodness. Actually the amount of berries was a mixed number, too, but we just throw in as many of those as we want without measuring!
So we needed ½ teaspoon of salt. Dominic doesn't know how to multiply fractions gets (he's just in 2nd grade), so I let him scoop out 5 one-half teaspoons of salt instead.
Which ends up being 5 servings of ½ teaspoon of salt each is 2 ½ teaspoons of salt.
Equation: 5 servings x ½ teaspoons of salt each = 2 ½ teaspoons of salt (I like to label the integers.)
The single recipe called for ½ cup of sugar. Well, we broke our ½ measuring cup, and our daughter took our 1 cup measuring cup to measure out our cats' food , so we had to us our ¼ measuring cup. I know that 2 one-fourth cups are in 1one-half cup. So instead of using 5 one-half cups, we had to use 10 one-fourth cups.
Lots of scooping……...
|I love how he put the towel on his shoulder…just like mommy!|
Which ends up being 5 servings of ½ cup of sugar each is 2 ½ cups of sugar.
Equation: 5 servings x ½ cups of sugar each = 2 ½ cups of sugar
Dominic noticed that we needed 5 each of the ½ teaspoon and ½ cups :)
Here is the berry muffin batter. We used blueberries and raspberries.
I really meant to take a picture of our final muffins, but when the timer on the oven dings, it's every man, woman, and child for themselves!
How have you used math in the real world lately?
**Please excuse any typos as I don't have the super power of being perfect :)