It's back to school for Apple with a brand-new iPad.

Apple on Tuesday unveiled a new version of its tablet at its education event in Chicago, which it hosted at the Lane Tech College Prep High School. The school is the largest public high school in Chicago.

"Macs and iPads are used throughout schools by students for everything from music to language arts and even advanced robotics," Apple CEO Tim Cook said at the event.

Apple called the new 9.7-inch tablet "our most affordable iPad." It starts at $299 for schools and $329 for consumers (£319 in the UK, AU$469 in Australia) for the 32GB model. The new iPad is available for order starting Tuesday, and you can expect shipping to start this week. The current cheapest iPad is also $329.

The new iPad is Apple's answer to Google-powered Chromebooks, which have become the go-to gadgets for teachers in classrooms. Apple devices used to fill up schools across the country, but they've since slipped as Chromebooks rose in popularity.

The new iPad will be able to use Apple's Pencil stylus, which costs an additional $99. 

"The new 9.7-inch iPad takes everything people love about our most popular iPad and makes it even better," said Greg Joswiak, one of Apple's marketing executives.

It has an 8-megapixel camera and 10 hours of battery life and weighs just 1 pound (469 grams), Apple said. It uses an A10 chip and supports 300 Mbps LTE connectivity. The A10 Fusion chip means that the iPad is more powerful than most laptops and essentially every Chromebook. 

The iPad's Retina screen will also open up augmented-reality possibilities for students, like virtually dissecting a frog. 

The iPad mimics features already available on the iPad Pro, like tilt and pressure, as well as a high-resolution touch system, which allows for quick responses. The Apple Pencil will also have its own set of apps available, the most popular ones being Pages and Keynote.

The Pencil will allow users to add smart annotations to Pages, which means students and teachers can add marks to the Pages document directly.

Apple also increased the iCloud storage space for schools from 5 gigabytes to 200 GB, and it unveiled a School Manager program, as well as making the Classroom app available for the Mac. 

If you find the $99 Apple Pencil to be too expensive, Logitech offers a $49 alternative aimed at kids, called the Crayon. 

One of Google's major advantages over Apple for educators has been the cost of Chromebooks compared with that of iPads. While schools typically buy Chromebooks for about $250 to $300 apiece, iPads for schools can cost nearly $800, in part because of the education curriculum included with Apple's tablet. Apple offers a discount for schools with its newest iPad, at a $29 price drop, but it's still more expensive than most Chromebooks.

In the last quarter of 2017, six out of every 10 mobile devices shipped to a K-12 school in the US were Chromebooks, according to Google. That's compared to the 11 percent of schools that are using iOS-powered iPads, according to FutureSource Consulting.

This is Apple's first education-focused event since Apple's digital textbooks launched in 2012. As interest in tablets dwindles, Apple has increasingly relied on schools and businesses to drum up interests in iPads.

"Students and teachers alike love the iPad. They love that it's so easy to use ... It feels like an extension of their minds," Joswiak said.

Apple's iPad was a big seller when it hit the market in 2010 and was considered the third leg of the company's "three-legged stool" of strong businesses. But the tablets have struggled over the past couple of years as Apple's iPhones get bigger and its Mac computers get smaller. People who've bought iPads have held onto them longer, while others find they don't need a tablet once they have an iPhone Plus and a Mac.

In 2015, Apple tried to give new life to its iPad by introducing the 12.9-inch Pro model with an optional keyboard case and Apple Pencil stylus. The Pros, along with a lower-priced iPad model that Apple launched a year ago, helped the company's iPad sales rebound after 13 straight quarters of declines.

The new model announced at a school on Tuesday marks Apple's latest bet to win back the education market.

Originally published March 27 at 8:19 a.m. PT.
Updated at 8:23 a.m. PT: To include details of the new iPad
Updated at 8:30 a.m. PT: To add details on the new iPad's features.
Updated at 8:33 a.m. PT: To add details on pricing and availability.
Updated at 8:47 a.m. PT: To add details on new software and apps for the iPad.