Students create equations for finding the break-even points of hybrid and electric vehicles by mileage and years of ownership. They work with systems of equations to find the number of years or number of miles where the cost of these cars are the same.

# Tag: 7.RP

## Does seeding really matter?

## The Iditarod race will be different this year

## At least the days are getting longer

## How should I spend my rewards?

## Martin Luther King, Jr and social justice

We have 6 activities on Martin Luther King and the movement to a more fair and equal representation of Black lives in America. A timeline of KIng’s life; a timeline of the social justice movement; the history of Jackie Robinson; data on which monuments in the National Mall are most visited; a study of crowd counting; and an examination of the recent changes in the Bears Ears Monument size and the reasons for that change.

## Earth’s perihelion

## Veterans Day 2020

## 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.

## 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?