Your laptop probably has a card reader slot. (Most modern laptops have got one). If so, remove the memory card from your camera and put it into the card reader. You'll probably see a box come up, asking what you want to do with the card. I suggest simply closing that box and doing nothing. (If you don't see that box, don't worry. The rest of my instructions will still work anyway).
Create a new email, filling in the recipient's address and your message as usual. Then click on 'Attach', 'Attachments' or something similar. That will open a box which you'll need to use to navigate to the location of the pictures you want to send. You'll need to look for the drive letter for your memory card and double-click on it. That will probably then show you a folder where your images are stored, so you then double-click on that. (There might be a further folder, inside the original one, that you again need to double-click on). You should eventually get to thumbnails of your pictures. To select just one as an attachment, double-click on it. To select several, click on the first one and then hold down Ctrl while selecting the others, finishing off by clicking on 'Open').
You'll then see the list of attachments shown on the draft of your email. All you then need to do is to click on 'Send' as normal.