Christmas criss-cross puzzle

A criss-cross is the version of a crossword that works in a classroom, because the words are printed underneath the grid and there are no clues to write or to understand. Nobody is stuck because they have not heard of something. The whole puzzle is a question of where each word fits, and that turns out to be the part children will actually argue about.

Christmas vocabulary suits it unusually well. The interlock needs words of different lengths sharing letters, and this list runs from four-letter words such as STAR up to nine-letter ones such as EVERGREEN, which is exactly the mix that produces a grid with long spines and short crossings rather than a dense block. CANDLE and HOLLY crossing at an L on the starter is the kind of thing a solver spots once and then looks for everywhere.

It asks more than the word search does. Finding CAROL in a grid of letters means recognizing a shape you can already see; writing it into five squares means producing the spelling from memory, one letter at a time, in a place where a wrong letter stops the next word fitting. The puzzle checks itself, which is why a child will correct their own spelling here without being told to.

The four sheets run from ten words to twenty. Print the starter for the last week before winter break when nobody is concentrating, and the challenge for a child who finishes everything early and needs something that takes longer than four minutes. If you want the words from your own carol or class list instead, the maker on this page will interlock them and print the key separately.