An important formative assessment strategy used during the OGAP training was the use of "
public posters"
to engage all students and gather information about participant thinking to support the development of a mathematics concept. A public poster by a group increases the accountability of the work represented and from a formative assessment perspective it gives you multiple opportunities to gather evidence of student thinking: while students are working alone, while the groups are working, and during the public display and discussion of the posters. You may remember completing posters in this way during the OGAP training sessions.
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