Geometry has never been funnier! Green, funny aliens will help children to master the knowledge of shapes, formulas and figures. A new, entertaining activity book to challenge young readers joins the worldwide successful Mad for Math series with a collection of fun games based on geometry - which can really be fun! Children can be challenged with games of growing complexity throughout this activity book - and all answers can be found at the end. A didactic and educational, yet entertaining book which teaches children that you can not only play with geometry...but also to have fun with it! Includes 8 pages of stickers