LHS junior wins $50,000 malaria research prize

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Lexington High Junior Wins $50,000 Malaria-Research Fellowship

Rajarshi Mandal, a 16-year-old Lexington High School junior, won a $50,000 Davidson Fellowship on Sept. 21 for a mathematical model that optimizes how malaria-preventing mosquito nets are distributed worldwide. About 200 million insecticide-treated nets are handed out each year, mostly divided by population, a method that ignores insecticide resistance, seasonal transmission spikes and nets wearing out; in testing, Mandal's approach prevented twice as many infections using the same number of nets. He is one of more than 20 students nationwide to earn the scholarship this year, and said he began the work after watching footage of fishermen weaving donated nets into fishing dragnets.

Lexington Concord Courier

Lexington School Committee Meets Tuesday Evening

The Lexington School Committee meets Tuesday, Sept. 22, from 6 to 7 p.m. at the School Administration Building, 173 Bedford St.

Town of Lexington

Lexington High School Council Meets Tuesday

The Lexington High School Council meets Tuesday, Sept. 22, from 6 to 7:30 p.m. in the Library Media Classroom at 251 Waltham St., with minutes approval and 2026-27 meeting dates on the agenda.

Town of Lexington

Council on Aging Age-Friendly Subcommittee Meets Remotely Tuesday

The subcommittee meets Tuesday, Sept. 22, from 2 to 3 p.m. to discuss senior parking, an EOHLC grant application, an accessory dwelling unit seminar, and a transportation manager's upcoming visit.

Town of Lexington

National Theatre Live Screens 'The Misanthrope' Tuesday

Lexington Venue, 1794 Massachusetts Ave., screens National Theatre Live's 'The Misanthrope' Tuesday, Sept. 22, at 7 p.m.

The Lexington Observer

Sensory-Friendly Art Drop-In Set for Tuesday

LexArt, 130 Waltham St., hosts a free, guided Art Drop-In Tuesday, Sept. 22, from 2 to 4 p.m. for participants of all abilities.

eCommunity Connections

Coping With Change Support Group Meets Tuesday

The Coping With Change group for adults 60 and older meets Tuesday, Sept. 22, from 2 to 3 p.m. at the Lexington Community Center.

Lexington Recreation & Community Programs

Boston Skyline Chorus Holds Open Rehearsal Tuesday

The treble barbershop group holds a free open rehearsal Tuesday, Sept. 22, from 7 to 9:30 p.m. at 177 Bedford St., welcoming prospective women and non-binary singers.

Boston Skyline Chorus

Boston Metro Handicap League Disc Golf Round Set for Lexington

Week 3 of the Boston Metro Handicap League runs Tuesday, Sept. 22, from 5:45 to 7 p.m. at the Bridge School Boy Scout Course.

Boston Metro Handicap League

Just Games Hosts Tuesday Mahjong Meetup

Just Games Lexington hosts a mahjong meetup Tuesday, Sept. 22, from 3 to 6 p.m.; staff teach newcomers, and the table fee is $10.

Just Games Lexington

Indivisible LAB Holds Daytime Action Hour Tuesday

Indivisible LAB's daytime action hour meets Tuesday, Sept. 22, from 10:30 a.m. to noon, covering elections, mutual aid, rapid response, and legislative advocacy.

Turn Purple 2 Blue

Library Program Explores Hearing Loss for Grades K-3

Cary Memorial Library hosts Hands-On Hearing Loss for grades K-3 Tuesday, Sept. 22, from 6 to 7 p.m., using storytelling and interactive stations to introduce accessibility technologies and the experiences of deaf and hard-of-hearing people.

Cary Memorial Library