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Guide to the SB&F Rating and Level System

Rating
 
++ Highly recommended. The material contains no serious error or deficiencies, and the reviewer thought the content and presentation were excellent.
+ Recommended. The material contains no serious error or deficiencies, and the reviewer thought the content and presentation were above average.
Ac Acceptable.  The material contains no serious error or deficiencies, and the reviewer thought the content and presentation were average.
Q Questionable.  The material contains error of fact, deficiencies of development, and/or the reviewer thought the content and presentation were below average.
NR Not recommended. The material contains serious errors of fact and/or deficiences in development.

Level of Difficulty
 
K Preschool or kindergarten
EP Elementary, grades 1 & 2
EI Elementary, grades 3 & 4
EA Elementary, grades 5 & 6
JH Junior high, grades 7 & 8
YA Young Adult, grades 9–12
C College
T Teaching professional
GA General audience

Two consecutive levels are separated by a comma; for example, K, EP. Three or more consecutive levels are condensed to show the youngest and oldest age groups, and the symbols for these are separated by a dash; for example, K–EI. C, T, and GA are always noted separately.
 
 
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