# Category: Ratio and Proportion

## Candy deals

We found big mixed bags of candy at really good prices … we think. Students are asked to decide which would be the best deal and the worst deal on candy.  They can also create their own mixed bags.  This activity…

## Is the Electoral College fair?

After showing the video consider asking your students what the grouping of students must have been for “colored pencils” to win the class electoral college?  Is there more than one possibility?  What is the minimum number of students that could have voted for colored pencils for them to still win the Electoral College.  Students then consider scenarios where a candidate wins the popular vote, but loses the Electoral College.

## Is the Electoral College vote similar to the Popular vote?

The winner of the Presidential Popular vote (November 3, 2020) is not always the same as the winner of the Electoral College vote (January 6, 2021). In this activity students ponder how that could happen … with data. Electoral-college-compare2020.pdf

## Costume spending 2020

Use our current data on Halloween spending in America to engage your students in an analysis of the ratios and percents of population, participation, and money spent in honor of October 31st.  This activity takes kids through finding parts of wholes as well as ratio, percents and proportion problems.  Beware: the tasks in this activity involve some large numbers as well as some challenging fraction/ratio/proportion problems.

## Monster cake

First, students need to find the surface area that the M&Ms cover in order to approximate how many M&Ms she needs to finish her cake.
When Brian tried to make the cake, he mistakenly added too much peanut butter.  Now all the of ingredients will need to be increased by some percent to insure that the cake maintains appropriate ingredient ratios?

## How much chocolate is left?

Fraction operations might be more interesting when it involves chocolate. Students reason and calculate what is left of these chocolate bars.  The bars are the same size but are molded into different number of sections. Yum!

## 2 Hiking Activities

Appalachian Trail Needs – Calculating the needs and rates involved in enduring this 2,168 mile trek.
Steepness and Fall Hiking – Use a little mathematics about percent grade change in hiking.

## NBA Finals 2020

Exploring NBA championship data. Check out the dominance of a select few teams in NBA history.  Students work the data, data representations and statistics.  For which kind of observations are circle graphs or bar graphs most useful? Finally, who has won the most NBA titles NBA history?

## Ramen noodle heist

In 2018, the trailer of a truck filled with Ramen noodles was stolen from a parking lot in Georgia. The trailer contents were valued at \$98,000. What do you wonder about this? Is this even possible?

Could \$98,000 worth of Ramen even fit in a tractor trailer?

## Do you want to be an NBA virtual fan?

For health concerns, professional sports now have no actual live fans. To help generate the excitement and semblance of fans, some teams use cardboard cutouts of people.  Some use Zoom screens of fans.  The NBA creates virtual fans. Actual viewers…

## It might be a good year to see the Perseid meteor shower

Catching a productive meteor shower can be a stunning experience.  On the evenings and mornings of August 11th, 12th and 13th there could be a very good show.  A last quarter moon will leave the night sky growing darker each…

## Largest s’more ever!

What is reasonable.?  How many marshmallows are in this recipe?  How many people could this cookie feed? How many marshmallows could you eat?

## How much water should you be drinking?

Student develop and use formulas for calculating their water needs.

## How fast will my new puppy mature?

There is a new dog aging formula that depends on methyl markers that adhere to the DNA molecules of living things.  Now we know that dogs don’t age as we thought that they did.

## Does the new “Most Stuf” Oreo have an exorbitant amount of stuf?

How much more “stufed” are they compared to Triple Double Oreos, Double Stuf Oreos or even Original Oreos. Does this look yummy to you or gross?  Why are they filled with creme and not cream?  Maybe Nabisco’s employees can’t spell.  What do you think?