Thank you for the clarification. I'm guessing it look like my second screenshot above but why not take a moment to learn screenshots.
Have what you want to show on the screen.
Press and release the home and power buttons at the same time, your iPad will flash. Be sure not to hold the buttons down, just press and rellease.
Write the text of your reply.
Move the cursor down two rows by tapping the return key
Tap the camera icon in the edittor bar above.
Tap choose file.
Tap Photo library..
Tap All photos or Screenshots.
Tap the screenshot you want. The most recent is in the lower right
Tap Insert image.
It's a lot of steps, just do them one at a time and let me know if you need help. I'll add a screenshot. 🙂