For Prince William and Kate Middleton, homeschooling three under-7s is a challenge. Prince William's new documentary, "Soccer, Prince William and Our Mental Health," aired in the U.K. last night, and in a zooming conversation with the soccer players, he admitted that he has problems with his children's math studies.

"Homeschooling is fun, isn't it?" said William on the call, as reported by the Mirror (opens in new tab). Homeschooling is fun," William said in the call, according to the Mirror (opens in new tab).

"The challenges of lockdown, eh' The challenges of lockdown," he said.

Last month, Kate Middleton discussed homeschooling George, Charlotte, and Louis (opens in new tab) in a BBC interview, admitting that she continued lessons during the Easter vacations. She said, "Before the [Easter] vacation, someone gave me some very good advice to adapt some structure to adhere to a pretty strict routine. Don't tell the kids, but I actually continued the lessons during the vacation. She said. [But the Cambridges' homeschooling is not all impossibly difficult math. 'There are lots of great tips online, and fun activities to do with the kids. So it's not all hard-core stuff."

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