Scary costumes

Updated!

Jorge the Dog

Every year Americans spend lots of money on Halloween and Halloween costumes. Use our updated 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.

Which is the best candy deal?

135 pieces for $14.9990 pieces for $6.9995 pieces for $9.9950 pieces for $6.99150 pieces for $14.24

Clicking on any of the above images will open the image larger in a new window.

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 has unit pricing, philosophy of candy collecting, and Excel if you would like to use technology.  

Vampire bats

az_vampire_bat Ooooo. Scary!  This is a slightly didactic activity on vampire bats.  We've given lots of interesting metric and customary unit facts and asked students to relate those sizes to more familiar objects.  Simply enjoy the season with this slightly creepy activity ... metric and customary units, size and weight comparisons, and blood-sucking bats.

Ghost Whisperer

This Friday is the 13th.  Let the spooky stuff begin!
GhostWhisperer

Students can play this game online at Ghost Whisperer Crystal Ball and

  • Figure out why it works.
  • Construct viable arguments
  • Critique the work of others

This activity can be used with any grade level elementary through high school.  Younger students might work with patterns, multiples and order of operations. Older students might work with systems of equations to prove how the Ghost Whisperer works.