LAS VEGAS (AP) - President Barack Obama tells Nevadans he's fighting for smaller class sizes in schools and to keep teachers from getting laid off.

Obama told an enthusiastic crowd of about 2,000 people at Canyon Springs High School in North Las Vegas he's working to help communities support their teachers, especially in math and science.

Wednesday's appearance was Obama's second in a campaign swing through Nevada. Education also was the theme when Obama spoke at a community college in Reno on Tuesday.

Tenth grade teacher Claritssa Sanchez introduced Obama in Las Vegas, saying each of her students would improve with just a few more minutes of individual attention from her every day.

Obama is spending millions to advertise and campaign in Nevada, a swing state that helped him win election four years ago.

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