Let your students play this great 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…

# Algebra

These posts help students see patterns and relationships.

# Who’s going back to school?

In this investigation students calculate the percentage of the U.S. population (current and historically) that are enrolled in K-12 schools. They are asked to draw conclusions from these variations. Finally, they use their calculations to predict the number of enrolled…

# Olympic Medal Table

Check out the two images of the 2008 summer Olympic medal counts. What do you notice? How are the Olympic medal counts and standings determined? The Olympic Games are competitions between athletes in individual or team events and are not…

# Swimsuits – a drag?

To win in Olympic swimming, contestants have to be incredibly fit and have marvelous endurance and technique. Do they also need to consider the science of their motions and their equipment? Could your swimsuit, swim cap and goggles be holding…

# 10 cents for all you can eat ice cream! Crazy!

All the ice cream that you can eat for only 10 cents! Wow, that’s a great deal! Or is it? The history of the Dairy Queen franchise began with this ad in Illinois in 1938. I know that 10 cents…

# Pokémon GO! I should have invested

Pokémon GO is all the rage. News reports show people glued to their smart phones as they travel to nearby landmarks where virtual critters appear and need to be caught by throwing Pokémon Balls with a phone swipe. Well, at least…

# 10 Million nematodes

Grubs are killing my grass. I don’t want to put poison into the ground. What can I do? There are tiny roundworms called beneficial nematodes. They can kill destructive soil pests in your garden and lawn. They are tiny worms that…

# How high can a gymnastic score be?

front row: Laurie Hernandez, MyKayla Skinner, Simone Biles, Ragan Smith back row: Ashton Locklear, Aly Raisman, Alyssa Baumann, Gabby Douglas MyKayla Skinner, Ragan Smith and Ashton Locklear were named as alternates. Gymnasts have just successfully competed in San Jose, California…

# Lighting the Olympic Torch

The 2016 Summer Olympic games won’t begin until on August 5th of this year but already the Olympic Torch has been lit and is traveling to the game’s site, Brazil, by 12,000 relay participants. Watch the lighting video and wonder…

# 4th of July

Fireworks on your calculator – Let your students experiment with their graphing calculators to create a nice fireworks display? We’ve written a brief activity that questions students about manipulating parabolas, adjusting their calculator windows, and helping them celebrate whatever. Or consider using Desmos or Geogebra to…

# Coloring with Pascal’s Triangle … Binomial expansion

Working with Pascal’s Triangle offers some interesting and varied mathematics. We love to color and the end result is pretty! Here is the first of 3 activities using Pascal’s coloring. This Binomial expansion activity could be used alone or coupled…

# The longest day

On Monday, June 20th, at 06:34 pm EST, the Earth’s North Pole will be tilted as far towards the Sun as it will ever be in the year. This marks the longest day of the year and the summer solstice in the…

# Father’s Day ideas

Blueberry Muffins is a short activity that asks students to change the amounts in a blueberry muffin recipe to multiples of and fractions of a ¼ cup measuring cup (multiplication and division with unit fractions). fathers-day-muffins.pdf For members we have an…

# Which is most expensive?

Who knew that creams for your face could be so expensive! I’m going to have to rethink what to buy for my mom. Which of these high priced cremes is most expensive? In this activity students observe some prices of…

# Games with dice

Time to let students become naturally curious about probability. In this activity students work in teams to record the frequency of rolled dice combinations. They observe the difference between experimental and theoretical outcomes and consider how sample size affects how the…