Two students at the °ÄÃÅ¿ª½±½á¹û2023¿ª½±¼Ç¼ have been awarded major teaching fellowships by the Knowles Science Teaching Foundation, or KSTF, for 2011. CU-Boulder undergraduates Julia Ratcliff and Cacia Steensen were among 37 new fellowships awarded nationwide for teachers of biology, mathematics and physical science.