The Catamounts won their fourth straight game and are off to a 5-1 start for the first time since the 1996-97 season. They have beaten the Big Green 11 times in the past 12 meetings.
Accaoui shot 8 of 13 from the field, including 5 of 10 from beyond the arc. Fjeld hit 8 of 12 field goals.
Brian Voelkel had 13 rebounds for Vermont, which dominated the Big Green (2-5) on the boards, 45-27. The Catamounts had a 36-8 advantage in the paint and outscored Dartmouth 15-0 on second-chance points.
The Catamounts led 37-26 at halftime and by at least 11 the entire second half. Vermont outshot the Big Green 52.5 percent (31 of 59) to 33.9 percent (20 of 59).
Gonzaga has signed California transfer Jordan Mathews to a financial aid agreement for the 2016-17 season.
Coach Gilmore on CWS win: 'It's indescribable' Coastal Carolina head coach Gary Gilmore reflects on his 21 years as head coach and is proud of how far the program has come.
Two late June events provided a great start on the 2020 class and a look at some new 2019 talent.