So wait, you fucked up, and now you want us to pay for it?
No, see, here's what happened: School decides they want product X which works with product Y. Product X sucks; product Y is not defective. School has legitimate claim about product X not delivering; product Y is your fault, and you don't go back to the supplier and make them eat the cost.
The school may have a claim against Pearson, since they delivered shoddy, half-ass work. The school has no claims against Apple, since Apple supplied a device not designed to do what the school wanted, and the school intended to extend it with Pearson's product.
There's a real lesson about bad project management and buyer's remorse here; and, looking back, they're ignoring old and proven lessons about not trying to fix education with unrelated technology. The only technology that belongs in education is education: education methods are a technology, and they are the technology for education.
Until you have an education methodology that shows good, scientific basis and utilizes your fancy toys, you're just throwing toys into education. For example: Japan uses a mathematics curriculum teaching students to use complementary number computation techniques, driven by the exemplary platform of a machine called a Soroban; a Soroban would be a ridiculous toy to bring into the classroom if you were not teaching using these computation techniques and trying to leverage the visual and mechanical aspect of learning by soroban (I've done some self-teaching without the soroban, and learned the same techniques; there are, however, scientific reasons to bring a soroban to the table). If they're just doing workbook activities BUT ON AN IPADZ!!!! and not doing anything known to improve education when an iPad is involved, the iPad is a fucking toy not appropriate in education.
It's worth noting there's a school of educational research suggesting that introducing young children to high technology is actively bad, and that high technology should be taught outright after age 10-12 rather than used as a platform to deliver old teaching methods. Small children need most to learn socialization; they need to interact with other children, and not isolate themselves to curriculum. I have my own educational theory which extends this: small children need most to learn techniques of utilizing the brain effectively, set in an environment of free socialization, so as to develop their social behaviors while also giving them tools to rapidly and effectively learn curriculum. In all of these advanced schools of thought, and in mine, you see that pattern: humans need to learn human behavior first, then learn high technology as a tool; wrapping books in fancy electronics won't suddenly make education better.
This is like the 90s when everyone's answer to everything related to computer security was "ENCRYPTION!" Now everyone's answer to every education problem is "COMPUTERS!"