Get to know the rhythm of the week and the year. Explore, check and learn at your own pace.

A year has 12 months: January, February, March, April, May, June, July, August, September, October, November and December.

After Saturday comes Sunday again, and after December comes January of the new year.

For parents: how to use the exercises

First explore the calendar together, then try six short exercises on all the topics: the days of the week, the months and the seasons. There is no time limit. After each answer you can follow the right order, and the harder questions come back later. The tiles are put in order by dragging them or with the arrow buttons; a tile with the focus also moves with the up and down arrow keys.

We show the astronomical seasons of your hemisphere: a season changes on an equinox or a solstice, during March, June, September and December, not at the beginning of those months. The landscape illustrates the usual changes of nature and is not a weather forecast. The daylight is for the chosen date near Columbus; the height of the Sun and the shape of its path are only a sketch, not an astronomical chart.

The equal parts of the wheel show the order of the months, not how many days they have. Each part is divided into the month's days, so the marker moves by a slightly different step in February than in March. The red dot is today, and the blue marker the chosen day, which the arrow keys also move, a day at a time.

The blossoms and apples show the year of an apple tree, as an example: when it flowers, when its fruit ripens and falls depend on the variety and the weather. The exercises collect no data about the child and send no answers to the server.

Learn to tell time on the clock