28 JUL 2014 by ideonexus

How to Make Slime

Mix up a batch of 50/50 water and glue, dissolve a spoonful of Borax in more water, then mix the whole mess together. (If you want real numbers, mix 1/4 c water with 1/4 glue & dissolve 1 tsp Borax in 1/8 c water, but really, you can be pretty slapdash about this.) As you knead it, the slime will quickly start resembling silly putty. For extra awesomeness, consider mixing in some iron filings to create your own batch of magnetic putty.
1  notes

Something to do with the kids.

05 DEC 2013 by ideonexus

Common Core Math Standards Part II

Attend to precision. Mathematically proficient students try to communicate precisely to others. They try to use clear definitions in discussion with others and in their own reasoning. They state the meaning of the symbols they choose, including using the equal sign consistently and appropriately. They are careful about specifying units of measure, and labeling axes to clarify the correspondence with quantities in a problem. They calculate accurately and efficiently, express numerical answers ...

Continued

08 APR 2013 by ideonexus

Positive Bias in the 2-4-6 Task

The boy's expression grew more intense. "This is a game based on a famous experiment called the 2-4-6 task, and this is how it works. I have a rule - known to me, but not to you - which fits some triplets of three numbers, but not others. 2-4-6 is one example of a triplet which fits the rule. In fact... let me write down the rule, just so you know it's a fixed rule, and fold it up and give it to you. Please don't look, since I infer from earlier that you can read upside-down." The boy said ...
2  notes

A game to demonstrate we jump to conclusions and seek to confirm our biases.