(excerpt from Mathalicious)
Mathalicious is trying to change this perception by tying together real-world, interesting questions with practical math concepts. For example: Why does everyone pay the same amount to buy Nike shoes online? Surely the cost of making a size 2 is much less than a 12. What would happen is Nike charged by weight? The common core standards are listed beside the topic slideshow and downloadable teacher guide/student handout.
Some of the lessons on Mathalicous are free. Others require a paid subscription. The suggested contribution is $20/month. However, they follow a "pay what you can" philosophy that would allow the strapped teacher to join for as little as $5/month. An annual school license is also available.
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