To see the molecules that your instructor has added to your worksheet, hold you device's camera up to the kanji symbol on the page. Once your device's camera recognizes this symbol you should see the intended molecules renderering on the page. To keep seeing these molecules, make sure the marker is in view of your camera. For best results keep your device ~6 inches away from the page as this will allow your camera to have it in view at all times.
To see the molecules without the use of a marker you can click the experimental AR button. This mode will allow you to view the molecules your instructor has added to the lesson without the marker in view. Within this mode you will be able to walk around the rendered molecule without the worry of having the marker in view of the camera. Though please note this mode is still being developed in our lab so you may get some unexpected results when using it.