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I take no credit for this idea at all. I was in a classroom this morning, and the teacher had the students play a game of Radical SNAP. The students were totally engaged, and were enthusiastically converting between mixed and entire radicals. It’s pretty simple to set up.

Materials: You need one deck of cards with the 10, J, Q and K removed for each pair of students, and one giant square root symbol per pair of students. This one should do the trick: Giant Root

Pair off the students in your class. Each pair gets a deck of cards, and should remove the 10, J, Q and K. Shuffle the remaining cards, and deal them so that each person has half the deck, face down.

Mixed to Entire

The students flip over their top cards. The student on the left puts his in front of the radical, and the student on the right puts hers under the radical. The first student to correctly convert the mixed radical to an entire radical wins the round.

Entire to Mixed

The students flip over their top cards, and put them both under the radical. The first student to correctly simplify the radical or to identify that it can’t be simplified wins the round.

### 6 Responses

1. Nice. Here’s how I imagined the activity after seeing your tweet and before reading this post:

– Each student has their own “Giant Root”
– Each player draws a card and decides to place it in front of or inside the radical sign.
– Each player draws a second card and decides to place it in the remaining spot.
– The player with the largest number wins (which often, but not always, means each player converting to an entire radical in order to make comparing easier).

I think this de-emphasizes speed and adds an element of strategy/luck.

• D’oh! “Each player draws a second card and decides to place it in the remaining spot” should read “Each player draws a second card and places it in the remaining spot.” No decision.

• It’s a nice variation. The speed factor was troubling for a few kids whose partners were lightening fast.

• I second the “speed vs strategy” comment! Games that featured a little strategy and time to think always worked much better in my classroom, and didn’t penalize the kids who are still in the process of mastering a procedure or skill.

2. I love this! Thanks for sharing!

3. on March 12, 2014 at 2:23 pm | Reply Shannon Sookochoff