K-12 astronomy benchmarks from Project 2061

2000 ◽  
Vol 38 (9) ◽  
pp. 538-540 ◽  
Author(s):  
Timothy F. Slater
Keyword(s):  
K 12 ◽  
2008 ◽  
Author(s):  
Sharon Y. Tettegah ◽  
Carolyn Anderson ◽  
Kona Taylor ◽  
Eun Won Whang
Keyword(s):  

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