Line up the left ends of two bars. The one that reaches farther is longer. Look at the tops of two towers. The higher one is taller.
Worked example
Look at A and B. Which one is shorter?
Answer:A
Line up the left ends. B reaches farther, so B is longer and A is shorter. The shorter one is A.
For grown-ups: Describe and compare attributes (longer, heavier). Below: three problems to try with the worked answers, and a free printable sheet. Children can practise the same skill as a game, with no sign-up and no ads.
CCSS K.MD.A.1–2
What this practises, for teachers
Practices describe and compare attributes (longer, heavier) (K.MD.A.1–2). A printable sheet with its answer key, worked answers on the page, no accounts.