Central School classrooms will be receiving Tanzanian artifact boxes to compliment their Sister School Program thanks to a Gripp Grant from the D39 Educational Foundation. Central School classrooms will be receiving Tanzanian artifact boxes to compliment their Sister School Program thanks to a Gripp Grant from the D39 Educational Foundation. Central School classrooms will be receiving Tanzanian artifact boxes to compliment their Sister School Program thanks to a Gripp Grant from the D39 Educational Foundation.