Use a sharp knife to divide the cake into as many equally-sized squares as you need – for example, two squares to make number 2 or three squares to make number 3.

Most kids' TV programming is lame and not educational. "Numberblocks," a British import that streams on Netflix, is a beacon of light. It's made my kid want to talk about math nonstop. Like most ...

Is your little one Numberblocks­-obsessed? If they're loving the adventures of One, Two, Three and friends, there's a lot you can do together to make the most of their interest and give them even ...