Join Vince Kotchian for an in-depth discussion in this video Scaling a recipe, part of Learning Everyday Math.
- In this movie I'm gonna explain how to scale…a recipe or change the amounts of a recipe…to serve either more people or fewer people.…So let's say you are making cookies…and the example I wanna use is,…you're gonna make cookies for the…House of Representatives in Washington, D.C.…So let's say your recipe will make 30 cookies…but you realize that there's 435 members of the House.…So you need to scale it up to make 435 cookies.…
So what do you do?…So let's look at the recipe.…Let's say the recipe for the 30 cookies says that we need…2 cups of flour to make 30 cookies…and let's say that it also says that we need to make...…Use 1.5 cups of sugar…to make 30 cookies.…Okay, so now let's think about, can we make…a ratio and a proportion, that's really…how we expand recipes.…So we see we have a couple of different relationships.…
We have the relationship, for every two cups…of flour we can make 30 cookies.…So we can write that as 2 over 30.…We can also write the relationship…of sugar to how many cookies.…So 1.5 cups of sugar makes 30 cookies.…
- Practicing mental math
- Understanding decimals and fractions
- Working with percentages and ratios
- Solving equations
- Calculating area and volume
- Scaling recipes
- Estimating your running speed
- Calculating the area for home-improvement projects
- Working with probability
Skill Level Intermediate
1. Math Foundations: Part one
2. Math Foundations: Part Two
3. Math Foundations: Part Three
4. Shopping and Cooking Math
5. Health and Fitness Math
6. Home-Improvement Math
7. Probability and Counting Math
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