Teachers can use these tools to promote discussions and help students move from concrete to abstract understanding of concepts.

Provided content. One ball on a Plinko board is unpredictable. Drop a thousand and they form a near-perfect bell curve—one of math’s most powerful ideas for 150+ years.

Illinois lawmakers say a long-stalled proposal to help the Chicago Bears build a domed stadium in Arlington Heights is seeing renewed urgency as Indiana advances competing legislation backed by Gov.

Ever wanted to know how engineers made their calculations before digital calculators were on every workbench? [Richard ...