This tricky optical illusion challenges viewers to spot the hidden number 68 among rows of 56s, 58s, 65s, and 85s. Can you find it? advertisement. ... The shapes, colours, ...

Use pattern blocks to make different shapes. Warm up with a Mystery Math Mistake to tell whether Dotson's 10-frames represent a number less than his focus number. Tell Which One Doesn't Belong by ...

Snowflakes All Fall In One of 35 Different Shapes The latest categorization of solid precipitation types inspired a cool graphic. Maris Fessenden - Former correspondent. December 30, 2014.