Games, Rivers, Seas and Oceans

How much is this?

How much is this?

Have you ever wondered, why do whales jump above the water? First of all, they don’t have gills, so they have to emerge to breathe. Second of all, it’s also a way to communicate with each other.

The whale from the toy, which we invite you to make, with a little effort on your part, will tell you how to add and subtract up to 10. Good luck!


  • learning how to count


Time: 20 minutes



  • Whale and number line template, attachment 5.1
  • Scissors
  • Wooden stick
  • Wood glue
  • A brush
  • A glass
  • Water
  • Watercolour paints

Task flow

Print the whale and number line template from attachment 5.1. Cut out the whale shape and paint it with watercolour. Cut out the part of the template bounded by a wavy line. Cut the paper along the dotted line above the number line. Glue the whale shape on the wooden stick and put it in a way, so whale sticks out of the cut part of the dotted line. Ask the child to solve a mathematical equation e.g. 10-2=?

The child, by moving the whale by the right number of lines, counts the result.

14.11 Dzien Czystego Powietrza 1 E1668703355599

This post was created as part of a project co-financed by Deutsche Bundesstiftung Umwelt in cooperation with Naturschutzzentrum Oberlausitzer Bergland.