Los huesos de Descartes

Examines different kinds of relationships, discussing why they work and what to do when they do not work.

There is a contest at a school to design a new playground. The students use blocks to build their models. As they build, they use three-dimensional shapes. Some students build a train out of blocks for the younger students to play on. Can you guess which three-dimensional shape they use for the train's wheels? Read to find out which design wins.

Andrés está harto del colegio, de los granos, del rollo de su madre, de la plasta de su hermana, de Jorge el "birlanovias", de la vida en general y del profesor de historia en particular. Dani y él se han propuesto cambiar el mundo y hacen un conjuro que les hará inmunes a las fantasmadas de pijos, pelotas y demás aves carroñeras y los convertirá en héroes. Bueno, al menos eso es lo que estaba previsto. Si luego las cosas se tuercen...

Take a look inside this book and you'll discover four delightful jigsaws specially designed for tiny hands, with each jigsaw piece that has touchy-feely textures that will help to develop sensory awareness and the concept of matching.