Manual for an edu science telescope F=700mm

This youtube video should give you some idea of eye piece types and sizes and their benefits.
How to Use Telescopes Telescope Eyepieces

You should be able to use the instructions for a typical refractor type telescope. Try this site.
Support Manuals Meade Instruments

The two popular eyepiece sizes are 1.25" & 2 in.
Older 'scopes may have 0.96 in eyepieces.

You can only use the eyepiece marked 20mm. This is a toy not a scope and you will only hate astronomy if you try to use it. The tripod is unstable and the lenses are plastic. Send it back and get a quality scope from Meade, Celestron or Orion. Orion makes a tabletop Dob (only 76mm aperture) for about $60 that is much better quality.

Take the scope oput during the day tiome. DO NOT opoint it at the sun. Point it at a distant object like a telephone polem or a building.

Look through the eyepiece with the largest NUMBER written on it-- and or the largest glass surface.

Turn the knob until the object comes into focus.

Read my tips on my profile page.

Contact Toys R US that sell this telescope-- or use either www.stellarium to control the scope.

www.stellarium.org

The disk is not actually needed it is just a planetarium software like Stellarium. All the goto controls are inside the hand controller.

Sorry there are no manuals for that small telescope. It is either a REFRACTOR style telescope with a lens in the front, or a REFLECTOR with a mirror in the bottom.

Depending on which one-- they all assemble and are used in a similar fashion. Look around the Bushnell manual web site for one similar to your scope and download the manual for free. Use this to learn the scope.

http://www.opticsplanet.net/bushnell-warranty.html

Look down the page for one that looks like your telescope.

The bit you are missing is the finder scope, which is a small low-power scope that is used to line up the main scope on an object that you want to view. Without this it can be quite hard to get the scope pointed at anything, as the field of view is quite limited, and more so at higher powers.

It can be quite expensive to buy useful eyepieces for a scope, but they are readily available if the eyepiece mount tube is 1.25 inch inside diameter. The eyepieces that originally came with this scope probably were not very good, and in fact this scope is not up to much. It is rather small for a reflector at three inches diameter. You certainly won't be able to use it at the advertised 600 power, or even at 200. It has neither the resolution nor the light gathering ability with that small an aperture.

I would recommend that you explore the web page at THIS LINK for a lot of good advice about first telescopes, before you spend any money.

You will not find a manual for this scope -- sold by Toys R Us by the way.

However Meade telescopes maintains a web site with all their manuals. REFLECTORS all go together in a similar fashion. Look on the web page below under REFLECTORS for a manual similar to your telescope.

http://www.meade.com/manuals/index.html

maybe this one???
http://www.meade.com/manuals/TelescopeManuals/Reflectors/062002Jupiter114EQ-D.pdf

Put the eyepiece with the LARGEST number written on it into the telescope. DO NOT use the 2x barlow if you have one.

Try focusing on a distant object during the daytime.

It's an Edmund Scientific telescope -- sort of like this one--
http://scientificsonline.com/product.asp_Q_pn_E_3039112

Call the company at the phone number on the web site above.