Monthly Archives: June 2016

Challenging Problems

I asked #MTBoS & Twitter in general for suggestions for resources with challenging problems (not lessons or activities, just problems), preferably searchable by CCSS or math concept/skill.  Many people asked me to share. Here is some of what I heard…

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…

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…