Artifact #9: “Which One Doesn’t Belong?
                Portfolio Item                                        Responses
Title of item                                    “Which One Doesn’t Belong?”
Owner/Creator                                    Mary Bourassa (created the website)
                                                 Christopher Danielson (Authored the book, which
                                                 has now inspired the website).
Site found                                       http://wodb.ca/
Description of item content                      This website is an excellent resource to use with
                                                 gifted and high ability learners. Simply choose one
                                                 of the images, which displays 4 mathematical
                                                 objects (i.e. shapes, coins, numbers, dice, clocks,
                                                 anything!). Teachers simply ask, “Which one doesn’t
                                                 belong?” Students verbally reason and explain why
                                                 one of the four math objects presented doesn’t
                                                 belong with the others. There are several answers
                                                 (no one correct answer). It develops students’ math
                                                 reasoning, helps them speak mathematically, and
                                                 requires higher order thinking skills to argue their
                                                 conflicting perspectives.
How this item informs your goals.                This website contributes to the OneNote full of
Significance in your Practicum/Internship        resources for enrichment activities for K-2 teachers. I
experience.                                      also used this during the professional development
                                                 to help teachers see what enrichment activities
                                                 might look like.
Acquisition Challenge Level (considering         Level 1
time, effort, money, etc. on scale of easy = 1   This resources is free, and I did not really need to
to difficult = 5)                                find it because I had heard about it this past year at
                                                 the GAGC conference. It is easy to access and
                                                 shrae!