A study of the use of manipulatives in the assessment of mathematics instruction with ESL Hispanic students. Bilingual Research Journal, 22(2-4), 215-235. I'm including this reference and abstract because it seems like an ideal research article for our group. Unfortunately, the report is written in Spanish only.
Red Rangers are a generation cross from the popular Rhode Island Red & are also known as Columbian Blacktails. These pretty chestnut hen's adapt well to most set up's, especially as backgarden hen's, free-rangers and smallholdings.
The Red refers to both the color of a penny (one cent) and the image that used to be on the penny, an American Indian head. Redskin is a slang term used for American Indians. The Indian Head penny was first issued in 1859 and looks just like that as issued in 1908 (before the Lincoln Cent).