Tech for Teacher Support: A study of technology take-up and effectiveness to scale-up Targeted Instruction (TI) in Pakistan

AEA Randomized Controlled Trials ◽

10.1257/rct.7469-1.0 ◽

2021 ◽

Author(s):

Isabel Macdonald

Keyword(s):

Teacher Support ◽

Scale Up ◽

Targeted Instruction

Download Full-text

Using Technology-Based Teacher Support Tools to Scale up the ClassWide Peer Tutoring Program

Reading & Writing Quarterly ◽

10.1080/10573560500203525 ◽

2006 ◽

Vol 22 (1) ◽

pp. 47-64 ◽

Cited By ~ 15

Author(s):

Mary Abbott ◽

Charles R. Greenwood ◽

Jay Buzhardt ◽

Yolanda Tapia

Keyword(s):

Peer Tutoring ◽

Teacher Support ◽

Scale Up ◽

Classwide Peer Tutoring ◽

Tutoring Program ◽

Support Tools

Download Full-text

NiAl precipitation in Fe-12w/o Cr-5w/o Ni-4w/o Al

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s042482010007480x ◽

1983 ◽

Vol 41 ◽

pp. 202-203

Author(s):

L.E. Murr ◽

J.S. Dunning ◽

S. Shankar

Keyword(s):

Solid Solution ◽

Stainless Steel ◽

Stainless Steels ◽

Alloy Composition ◽

Chromium Content ◽

Scale Up ◽

Optical Metallography ◽

Property Evaluation ◽

310 Stainless Steel ◽

Microstructural Studies

Aluminum additions to conventional 18Cr-8Ni austenitic stainless steel compositions impart excellent resistance to high sulfur environments. However, problems are typically encountered with aluminum additions above about 1% due to embrittlement caused by aluminum in solid solution and the precipitation of NiAl. Consequently, little use has been made of aluminum alloy additions to stainless steels for use in sulfur or H2S environments in the chemical industry, energy conversion or generation, and mineral processing, for example.A research program at the Albany Research Center has concentrated on the development of a wrought alloy composition with as low a chromium content as possible, with the idea of developing a low-chromium substitute for 310 stainless steel (25Cr-20Ni) which is often used in high-sulfur environments. On the basis of workability and microstructural studies involving optical metallography on 100g button ingots soaked at 700°C and air-cooled, a low-alloy composition Fe-12Cr-5Ni-4Al (in wt %) was selected for scale up and property evaluation.

Download Full-text