Tag: HSF

Will sending you back to school this year cost a fortune?

In this activity students decide what equipment and supplies are necessary, estimate how much that will all cost, confer with classmates to refine their lists, and then research to find out more accurately how much it will probably cost to send them back to school. This activity could be used for students in upper elementary school all the way to high school. It offers an opportunity for kids to estimate, research, reason, calculate and communicate with each other.

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…

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…

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,…

April 15th happenings

We have 6 April 15th activities. The Boston Marathon, Where your tax money goes, Jackie Robinson, and Paul Revere’s ride.

Refugees from Ukraine

Civilian Ukrainians are fleeing the war zone in order to remain safe and find food and housing.  How do these numbers compare with other tragic evacuations. While interpreting graphics and working with these huge numbers, bring your student’s opinions and concerns into your math class.

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.

Crazy Twos (Two to the…s)

Let your students practice manipulating exponents. Multiplication, division, roots, powers of powers.  This powerful activity asks them to do some impressive mathematics … in their heads.

The LUGE

This is one of the fastest Olympic sports. Lugers, on tiny sleds, zoom down a solid ice track at fantastic speeds, hold their bodies in an aerodynamically optimized position while fighting extreme G-force, and use only a helmet as their…

Olympic Schedule

The Winter Olympics begins this week in Beijing.

Wikipedia had this schedule of events. We think that there is a lot of information missing and apparent in this graphic. What can you tell and what would you like to know?

What can you tell about a snowflake?

As a snowflake falls from the sky, its crystal grows according to the humidity and temperatures of the air that it passes through. In this activity, students interpret a graphic that clarifies that growth and try to deduce what conditions…

Federal debt and deficit – What are they?

What’s the big deal with our national debt?  Do we actually borrow money to cover our debt?  If we do, imagine the interest charges? Help your students (and their families) understand the meaning and repercussions of too much debt. The…

The new R-naught number

Now we’re plagued with the Delta variant of the coronavirus.  What was the original virus’ R-naught number and what has it become?