why people drive cars

We drive cars so we can get to the place quickly.

There are little and big cars. There can be lots of passengers in the big car. The boot of the big car needs to carry heavy thing.

The little car carries less petrol.The little car holds less petrol so it costs less money.

the seat belts are safer so you don't go through the window.

How calipers work

I walk with my calipers on my legs so they can help me stand up. There are different parts on my calipers and they are colourful. They have rectangle holes at the bottom of the shoes. The black straps are really long, they are velcro. The metal sticks can bend. They are strong and straight.The top bit is the colourful bit where the straps go. They can support me when I'm standing up. Why do i need them? So I don't need my wheelchair.