Tag: 7.RP.A

Monarchs are flying south again

In mid-August and early September, the Monarch butterflies begin their annual migration south to more moderate climates to hibernate and overwinter.  It is an incredibly long migration and fascinating to observe.  But, the populations data on Monarchs has seriously changed…

Hexadecimal coloring

Probably most of us have heard of and even used hexadecimal color codes. Don’t you wonder why their number descriptions really make sense? In this activity we first ask students to color in our Golden Spiral by giving them the…

Mixing colors with food dye

What do you wonder about these recipes for coloring? What would happen if I used the wrong recipe (i.e. cake mix instead of egg dying) for coloring my eggs? Do all of the recipes (cake, icing, and eggs) have basically…

Hands of “Support”

Lorenzo Quinn, an Italian sculptor, created and temporarily installed this piece of art entitled “Support” in Venice.  Quinn used his own children’s hands to design this piece.  His intention was to demonstrate our need of human support to ensure the…

Immigration numbers

Here’s an opportunity to work with calculating percents and the percent changes in the U.S. immigrant population. Students can reflect on what those changes demonstrate. Start your class with this very cool movie showing the history of immigration in the…

Uh oh! Am I going to run out of data?

Let your students consider the graphic first individually and then in groups of your choosing before handing out the activity sheet. This might be an excellent beginnng-of-the-year, get-to-know-each-other task!  The activity: DataRemaining.pdf CCSS: 6.RP.A, 7.RP.A, MP4

BIG Snickers bar

Wow!  This snickers bar is huge! Act 1 – Big question = How many times bigger than a regular Snickers bar is this? What info would you like to know? How are you going to judge how much bigger this is…

Total solar eclipse – apparent sizes

Where will the eclipse be seen?  What if you are not in the path of totality?  Total solar eclipse?  What is apparent size?  How can the moon seem to cover the sun completely? We’ve created a pretty extensive investigation about…

Giant iceberg breaks off from Antarctica

The crack in Antarctica’s Larson C ice shelf has been growing for years.  Has the speed of the rift’s growth stayed about the same? increased? decreased?  Do the math and discuss the implications. The activity:  ice-sheet-rift.pdf

Proposed southern border wall

You have probably heard about the proposed border wall that may go up along the U.S./Mexico border.  How much wall needs to be built? How much will that cost? What is that per mile? Per foot? What else could you…

Chocolate heart-shaped raspberry cake

Students calculate base area or volume of cakes made from 2 cake pan sizes and observe how the volume of the cake changes with the increased pan size.  This is an activity intended to demonstrate that the volume increase is…

Civil rights marches, how do you count a crowd?

On October 16, 1995, perhaps a million black men gathered for the Million Man March on Washington.  This was 32 years after Martin Luther King, Jr. gave his historic “I have a dream” speech at the Lincoln Memorial to 250,000 civil…