YBCR comes with a book to teach you child about shapes, that when we first looked at I nearly cried laughing. It seemed completely ridiculous to expect my baby to recognize 'special quadrilaterals' and 'irregular polygons', let alone the difference between a rhombus and a trapezoid.
We decided that an easier way to teach shapes would be to cut his toast into simple shapes (square, triangle, rectangle) and explain it to him that way.
How wrong was I.
Within a week Cosmo was asking me if his toast could be a hexagon or an oval. In fact he even knew that my 'diamond' shape offering was a trapezoid. Turns out kids are much more capable than I have previously given them credit for.
This was proven to me again when we introduced the 'starfall' website to our playtime (www.starfall.com). Cosmo very quickly picked up not only the names of the letters and whether they were 'big' letters or 'small' letters, as well as the sound they make. Starfall is a fun interactive website that I can't recommend highly enough if you haven't tried it. My neices love it too.
The numberjacks is also a fun and educational program. We don't let Cosmo watch much TV, but he loves the numberjacks.
It can be watched free on the cbeebies website. It explains things in such a simple and fun way. After watching one episode Cosmo understood simple fractions (halves, thirds and quarters) and asks for his toast to be cut in this way. Amazing.
By the way, if you want to go down the toast cutting route, scissors are the way forward. There is no way you can accurately cut shapes with a knife, no matter how sharp it is. Believe me I've tried. Cosmo's look of disgust at the mangled toast was really enough to make me get the scissors out next time.