September | 2025 | Reflections and Tangents
1 post published by kdcampe during September 2025| Reflections and Tangents
1 post published by kdcampe during September 2025| Reflections and Tangents
September is here, and so is the school year for my US friends. Start a habit of doing some problem solving in your math classes this year! Here is the 1990 Calendar of Problems from 35 years ago f…| Reflections and Tangents
2 posts published by kdcampe during August 2025| Reflections and Tangents
Teaching is hard. The day-to-day cycle of planning, presenting, orchestrating, testing, and reflecting is continuous, and there’s always the uncertainty of how the students will show up (or not) to class on a given day. The very nature of schools and classrooms means that we as teachers are often isolated from other adults for large … Continue reading Find Your (Math) People→| Reflections and Tangents
Wow the summer is flying by, and it is back-to-school time already in many parts of the US. If you’re about to start your academic year, here is the August 2010 Calendar of Problems from 15 y…| Reflections and Tangents
1 post published by kdcampe during July 2025| Reflections and Tangents
Last week had a special math-y date: 7-24-25, which is a Pythagorean triple. This means that the sum of the squares of the smaller two numbers equals the square of the largest number. Let’s d…| Reflections and Tangents
Welcome to the 239th installment of the Carnival of Mathematics, a roundup of interesting mathematics content from April 2025. The Carnival is a monthly post hosted by a different blog each month. Since this is the 239th Carnival, I’ll begin with some interesting facts about the number 239. Fun Facts About 239 239 is a … Continue reading Carnival Of Mathematics→| Reflections and Tangents
Spring is here, and I’m sharing the May Calendar for some problem solving enjoyment in the last stretch of your school year. This is the May 2019 Calendar of Problems from 6 years ago for you…| Reflections and Tangents
Using Dynamic Technology to Build Understanding ◊ Episode 6: Quadrilaterals ◊ In Episode 5, we took a brief look at trapezoids, and that got me thinking about the family of quadrilaterals: all the wonderful four-sided polygons that students learn about in geometry. How might Dynamic Geometry (DG) help our learners investigate these shapes? Constructing Parallelograms … Continue reading Go For Geometry! 6→| Reflections and Tangents
Last week, I was the guest questioner for Howie Hua’s Mental Math Monday prompt that he posts on his social media accounts1. I asked, “How would you calculate 15 x 22?” and plenty of folks shared t…| Reflections and Tangents
Welcome to April, and I hope you’re ready to spring into some problem solving! Here is the April 2011 Calendar of Problems from 14 years ago for you and your students to try. I have the last …| Reflections and Tangents
Using Dynamic Technology to Build Understanding ◊ Episode 5: Marvelous Midsegments ◊ Welcome to Episode 5, where we take the scenic route in our geometry journey. What happens when we find midpoints of the sides of various polygons and connect them with a segment (known as a midsegment)? Marvelous properties show up; read on for … Continue reading Go For Geometry! 5→| Reflections and Tangents
Using Dynamic Technology to Build Understanding ◊ Episode 2: Draw Vs. Construct ◊ When using Dynamic Geometry technology platforms, a careful distinction must be made between a figure that is DRAWN…| Reflections and Tangents
Welcome to 2024! As we start the new year, I’ve come across four math-y fun facts about the number 2024. Read on for more… Difference of Two Squares The number 2024 can be calculated by subtr…| Reflections and Tangents
