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

We have two classic puzzles for your April 1st class starters. PerplexingOne.pdf PerplexingTwo.pdf CCSS: MP.1, MP3,4.OA, 5.G, 8.EE, 8.SP For members we have solutions. PerplexingOne-solution.pdf PerplexingTwo-solution.pdf Or you might baffle and amaze your students with our Ghost Whisperer lesson.…

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…

Check out our Christmas Tree. You need to buy lights for the tree. Without calculating, guess how many feet of lights you will need.What information do you need to better estimate the number of feet of lights that you need?…

One of my favorite foods is a burrito. One of my favorite places to get a burrito is Chipotle. Their food is delicious and environmentally friendly. For Halloween 2016, Chipotle is again running a promotion and charity drive. Chipotle is…

Ooops! I was supposed to buy 4 adult and 2 children tickets, but I accidentally entered four children and two adults … 🙂 Can you figure out how much a child’s ticket and an adult ticket actually cost?

Act One: Take a look at the picture. What is the first question that comes to mind? How many donuts is that? What information would be useful? Act Two: See pictures below. Your students can view all five pictures on…

Brian has introduced systems of equations with easy, motivating problems that deal with the cost of stadium purchases for food or souvenirs. These systems of equations puzzles are so intuitive that very little support will be needed