# Tag: 7.RP

## Indigenous Peoples or Columbus Day

Sts learn a little history, question what they have learned earlier, and calculate how far off Columbus was from East India and his understanding of the actual circumference of the Earth.

## Little Amal

With refugees trying to survive hardships by traveling away from their homes, the story of Little Amal is powerful and touching. There is lots of math in creating an 11 foot tall puppet that can be controlled by 3 people and show fear, surprise, wonder, and generally the humanity of refugees.  Bring the story of Amal to your classroom with this timely art.

## The James Webb space telescope and the Hubble

There have been outstanding images coming to NASA from the James Webb Telescope. Take some time to compare the Webb to the Hubble telescope that has been sending images to Earth since 1990. Look at what is different and what…

## Should I buy a gasoline, hybrid, or electric car

Should you buy a hybrid or an electric car to save money and the planet? Students create equations for finding the break-even points of these vehicles by mileage and years of ownership.  They then work with systems of equations to…

## At last, its summer again

How much pee is in this pool? – A Canadian chemist, Xing-Fang Li, has found a marker for urine that chlorine doesn’t disguise. In this activity, students calculate volume of several pools, change that cubic foot volume to gallons of pool water,…

## Father’s Day, Juneteenth, and The Longest Day (summer solstice)

We have two Father’s Day activities, a Juneteenth activity, and a revised (and shortened) Longest Day/Summer Solstice activity.

## When will WORDLE run out of words?

Have you played WORDLE yet? Why do you suppose that this game is so popular? When will there be no new 5-letter words to try?

## Shrinkflation

Inflation in the cost of living, last year (2021) was estimated to be about a 7%. If “shrinkflation” is happening at the same time as general inflation, is the unit cost for those shrunk items actually raised even more than 7%?  Let’s find out.

## Mardi Gras, 2023

In New Orleans revelers throw and collect purple, green, and gold beads. Students get a chance to examine the monetary and environmental cost of this bead exuberance with our unit pricing and recycling activity.

## Bowl by the hour or the game?

Students consider the posted pricing of this bowling alley. What must they consider when choosing how to pay? What do you expect will be the best deal? How do you know?

## The James Webb telescope

﻿ After launch, the telescope deployed on its 30-day, million-mile journey out to the second Lagrange point (L2). This video shows the deployment procedure, timeline, and location of the satellite during deployment. Is this telescope just a more modern telescope…

## Will one roll be enough?

Students can use the man or the basket as a reference as they try to approximate the size of these gifts and how much wrapping paper will actually be needed. Approximation, surface area, reasoning explanation, and diagraming! An X-box is…

## 2 New Macy’s Parade balloons

Students figure out the dimensions of these two new balloons using Macy’s hints and judging from the handlers’ sizes.

## Veterans Day 2021

Here are two very different maps about where Veterans live in the U.S. and which states have the largest density of Veterans citizens. What do these two maps make you wonder or realize? How can you explain their comparison?

## Chuck E. Cheese needed to shred

Chucky E. Cheese needed to shred 7 billion tickets at a cost of 2.3 million dollars. Was this the real cost of shredding them?