Activating Strategy - Brainstorm and Categorize
Brenda Hill
Nov 30, 2009
Brainstorm and Categorize is an activating strategy where students are asked to brainstorm and list words or phrases about a topic. Using the words and phrases generated by students, sort and categorize them.
How is Brainstorm and Categorize used?
Students are introduced to a new topic or concept. They are asked to brainstorm and list ideas they already know about the topic. After students have generated their lists ask them to think about what ideas, words, or phrases on their list might go together. Guide them as categories are generated. For example, if students have brainstormed and listed what they know about "weather" and rain, snow, sleet, etc, have been included on the list then one of the categories might be "Precipitation." Answers are charted and visible to students as the lesson or unit is taught. Students may add and revise charts throughout the lesson or unit based upon new learning - new vocabulary, more categories, etc.
Brainstorm and Categorize Example: Weather
Pictures and graphics may also be added to tables and charts to support the learning of key concepts and new vocabulary. This is especially important for younger students, ELL students, and students with special needs.
Follow-up Writing Suggestion:
Have students summarize new learning by using the brainstorm and categorize chart generated at the beginning of the lesson or unit. Depending on the grade level students may be expected to write several sentences, several paragraphs, or an essay.
Other useful web sites on the importance of activating prior knowledge:
- Critical Issue: Building on Prior Knowledge and Meaningful Student Contexts/Cultures
- Increasing Comprehension by Activating Prior Knowledge
Learn more on Activating Strategies by clicking here.




