The ROM is correctly dumped; all games run in compatible emulators with no visible glitches. Thank you very much. To answer your questions:

• FCEUX has very little support for bootleg mappers. Use Libretro-FCEUMM for Retroarch on many platforms or NintendulatorNRS for Windows for complete mapper support.
• I assume it writes mapper number 33 instead of 289. That is likely because Sanni's software does not write a proper NES 2.0 header, so it writes mapper number 289 but fails to set the NES 2.0 flag, resulting in mapper number 289-256=33.
• To check whether a cartridge has been correctly dumped, repeat the dumping procedure several times, removing and reattaching the cartridge to the dumper between each attempt, and ensure that the hash value of the dumped data remains constant between attempts. And if the cartridge uses a known mapper, ensure that all games run in emulators without visible glitches.

Here're interesting stuffs I found on Chang Da's Educational Cartridges.
1. Individual versions of common Family Basic programs on these kind of cartridges (e.g. Calculator Board, Music Board) and "Letters Invade", done by hacking the extracted Family Basic portion in the ROM. This is actually much easier to do than other Family Basic variants (and even Nintendo's original Family Basic). Unfortunately Letters Invade has incorrect palettes that I may fix later.
*Side note: The educational cartridges has their Family Basic variants hacked to check certain values in the RAM and load the respective program. This variant of Family Basic just happened to have an easy-to-detect part of the checking program. I forgot where it was but you can do a quick comparison between them.
2. Sumangame's "Math Teacher"/"Shu Xue Jiao Shi" game which I've never seen before.
3. An unused menu lurking inside the ROM??? Looks like it was for a scrapped portion of a middle school learning software in the cart.

Pokemon ruby li cheng clone of Pokemon rubi by Makon

Im not sure if is different to Taizou dump because altough was a sealed product i need more than 30 trys to play the cart on gba sp and dump later.

It may a bad dump, but it works aparently.

I ran out of ideas and decided to retake my Natsume Collection I did last year. I didn't know Palamedes 1&2 were made by Natsume until very lately, so I put them here to pad up the empty space before the menu.

 Thanks for the answer. How do I dump a NROM with the Sanni Cart Reader V5 Retro Game Card Dumper (OSCR)?
I dumped an iNES ROM(.nes) and PRG and CHR (.bin) files using the 45 in 1 Educational Computer mapper. Is that useful for you? (Are bad dumps)