The bill allows school districts to require "mental health first aid" training for school personnel and creates a task force to examine the state's mental health system.

CNN: Connecticut panel crafts gun law overhaul

"Mental arithmetic is a more complex and challenging task, which more than 20% of people struggle with, " the study said.

BBC: Brain stimulation promises 'long-lasting' maths boost

The NRA expressed disappointment with a White House task force meeting Thursday, saying it expected mental health, the "marketing of violence to our kids" and school safety to be major topics.

CNN: STORY HIGHLIGHTS

The NRA said it was "disappointed" with a White House task force meeting Thursday, saying it expected mental health, the "marketing of violence to our kids" and school safety to be major topics.

CNN: STORY HIGHLIGHTS

The National Rifle Association said it was "disappointed" with a White House task force meeting Thursday, saying it expected mental health, the "marketing of violence to our kids" and school safety to be top topics.

CNN: STORY HIGHLIGHTS