Update README.md

README.md

@@ -41,12 +41,16 @@ Common Core State Standards (CCSS) offer fine-grained and comprehensive coverage
 
 <!-- This section describes suitable use cases for the dataset. -->
 
-This dataset was originally created to evaluate models' abilities to identify math skills and concepts using publisher-labeled data pulled from curricular websites. This data can support investigations into the use of language models to support K-12 education.
+This dataset was originally created to evaluate models' abilities to identify math skills and concepts using publisher-labeled data pulled from curricular websites. This data may support investigations into the use of language models to support K-12 education.
+
+Illustrative Mathematics is licensed as [CC BY 4.0](https://creativecommons.org/licenses/by/4.0/), while Fishtank Learning component is licensed under Creative Commons [BY-NC-SA 4.0](https://creativecommons.org/licenses/by-nc-sa/4.0/). Both sources are intended to be OER, which is defined as teaching, learning, and research materials that provides users free and perpetual permission to "retain, reuse, revise, remix, and redistribute" for educational purposes.
 
 ### Out-of-Scope Use
 
 <!-- This section addresses misuse, malicious use, and uses that the dataset will not work well for. -->
 
+Note that Fishtank Learning's original license prohibits commercial use. 
+
 ## Dataset Structure
 
 <!-- This section provides a description of the dataset fields, and additional information about the dataset structure such as criteria used to create the splits, relationships between data points, etc. -->