Decrypto is a** high speed composite number game** where students race to break down numbers into prime factors. Running for 20 - 40 minutes one of my students called it Exciting and Stressful!.
If you are looking to inject some excitement and teamwork into your lesson give this a go.
Highly recommend the pre-worksheet Sieve of Eratosthenes a Greek Math’s classic before Decrypto Racer. This is an engaging way for students to find Prime Numbers using multiples. The version I made goes up to 100 and takes about 10 -20 minutes depending on your class. It is included in this download.
Enjoy and please please send me your feedback, love it or hate I want to know!
Boggers
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