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Teachers in Oklahoma are planning to walk out of the classroom next week to demand a salary increase, part of a wave of teacher activism across the country from Arizona to West Virginia.

Why this matters: Teachers are protesting for pay raises and better benefits. In most states their salaries haven't kept pace with inflation.

Expand chart
Data: National Center for Education Statistics, The Council for Community and Economic Research; Note: Estimated average annual salary of teachers in public elementary and secondary schools, adjusted for inflation; Chart: Andrew Witherspoon/Axios

The teachers in Oklahoma, who are planning to walk out on April 2 if no agreement is reached with the state, are following teachers in West Virginia who walked out of the classroom for nine days before finally getting state legislators to authorize a pay raise. Teachers in Denver and Arizona have also discussed walking out of the classroom for better funding and pay raises. Teachers in Kentucky had a sick-out on March 30.

Go deeper

Miriam Kramer, author of Space
Updated 23 mins ago - Science

NASA's delays Mars helicopter test flight

Ingenuity (left) with Perseverance on Mars. Photo: NASA/JPL-Caltech/MSSS

NASA announced Saturday it rescheduled its Ingenuity Mars helicopter's first experimental flight, originally planned for Sunday.

The latest: "During a high-speed spin test of the rotors on Friday, the command sequence controlling the test ended early due to a 'watchdog' timer expiration," NASA said in a statement. "This occurred as it was trying to transition the flight computer from ‘Pre-Flight’ to ‘Flight’ mode."

Scoop: Ohio Senate candidate Josh Mandel escorted out of RNC retreat

Ohio Republican Senate candidate Josh Mandel. Photo: Chris Maddaloni / Getty Images

During this weekend’s highly anticipated donor retreat hosted by the Republican National Committee in Palm Beach, Ohio Senate candidate Josh Mandel was escorted off the premises while his primary opponent, Jane Timken, was allowed to stay, two sources with direct knowledge of the situation tell Axios.

What we’re hearing: The invitation-only event is taking place at the Four Seasons Resort, and the RNC reserved the entire hotel. While Timken, former Ohio GOP chair, was invited to the event “because she is a major donor” — Mandel was not, so he was asked to leave, according to one of the sources

Ben Geman, author of Generate
2 hours ago - Energy & Environment

Report: John Kerry plans to visit China ahead of Biden's climate summit

John Kerry. Photo: Zach Gibson / Stringer

John Kerry, President Biden's special climate envoy, is expected to travel to China next week for meetings with officials aimed at boosting collaboration, the Washington Post reported Saturday.

Why it matters: China is the world's largest carbon dioxide emitter and the U.S. is second-largest.