Students in some local elementary schools are learning a completely different way of doing multiplication. It’s a technique that many parents can’t understand. It’s called lattice multiplication. The ...

HOUSTON (KTRK) -- A mental math system developed in the 1800's is helping some local students ace standardized tests and win math competitions. But the method isn't taught in most Houston schools.

Who is doing the majority of the talking in your math classroom? In a traditional secondary math classroom, the teacher is stationed at the front of the room demonstrating examples related to the ...

JavaScriptで乱数を取得したい場合には「random関数」を使います。 Math.floor()は、小数点以下を切り捨てるメソッドです。0.999なら0、3.21なら3という数値を返します。