White House Press Secretary Jen Psaki said Tuesday that President Joe Biden aims to reopen over half of schools nationwide for “some teaching” in person “at least one day a week” by day 100 of his presidency. The news comes as parents across America in areas without in-person teaching are desperate for help amid mixed messaging on the issue from the Biden administration, which has left children falling behind academically under lockdown. Biden’s administration has taken a hands-off approach to school reopenings after vowing during his campaign that he’d see schools resume in-person classes if elected. In December, Biden said he aimed to ensure “a majority of our schools” are open within 100 days. Psaki told reporters during a press briefing that all schools won’t necessarily fully reopen by day 100 of Biden’s presidency. “His goal that he set is to have the majority of schools—so, more than 50 percent—open …