The Challenge: Color a spiral of numbers. Or 3. Or fifty. (This one gets quite addictive.)

Materials Needed: A spiral chart. Two pdf versions are shown below. Math conceptsyou could explore with this challenge: algebra, arithmetic, counting, functions, lines, sequences, symmetry

Depending on how you use this activity, you may engage with different mathematical standards. I’ve listed possible connected math content above. Here are a few suggestions for how you might integrate the 8 mathematical practices. Feel free to add your own suggestions in the comments!

3.) Construct viable arguments and critique the reasoning of others. Create the Ulam spiral – shade in all the prime numbers. WHY do those lines appear?!?

8.) Look for and express regularity in repeated reasoning. Make a number of different spirals based on arithmetic sequences and geometric sequences. What do you notice about the different appearances?

I enjoyed the tasks thank you

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