Are you ready for THE BEST beginning of the year math game ever?! In this post, I’m going to teach you how to play Trash Can Math–a place value game!
Β I learned this game two years ago when I was filling in for a teacher on maternity leave.Β We got to spend 4 days together for transitioning (which now that I think back is AMAZING!)Β I truly learned so much from her! And get this, she is also Mrs. Stahl!
Short story long: I was getting married that September so I started the school year off as Miss Fitzpatrick and then changed to Mrs. Stahl.Β So I was Mrs. Stahl filling in for Mrs. Stahl.Β Kind of confusing, no?Β We made sure to warn the parents ahead of time so they werenβt wondering why pregnant Mrs. Stahl came back to school 2 weeks after having a baby.
Anywho.Β The name of the game is Trash Can Math.Β Although no actual trash cans are involved.Β I always include this place value game in my first week plans which you can find here.
You will need:
- 1 dice
- whiteboard
- marker
- Trash Can Math page (optional to use instead of whiteboard)
The game is simple.Β Tell students we are trying to make the BIGGEST number we can by rolling the dice 3 times (or 4 if you choose to include hundreds).Β The catch is, we can only use the digit once and we have to pick a spot for it before we roll again.Β We CANNOT move the number once we picked its spot or that will be cheating.
Set up the board
(The T is for tens and O is for ones, the rectangle is the trash can)
How to Play Trash Can Math
Choose a student to roll the dice.Β Say they roll a β2β, well thatβs fairly easyβyou will likely want to put it in the trash can.Β There’s a little risk since you could roll a “1”. But, there’s also a high chance that you could roll a 3, 4, 5 or 6. Ask for some opinions on what to do.Β Make the kids do the thinking!
Then choose another student to roll again.Β Say this time you roll a β4β.Β Well thatβs a little trickier and you kind of have to gamble.Β You could roll a 5 or 6 next time so maybe donβt put it in your tens place just yet.Β Or maybe do because thereβs a chance you will roll 1, 2 or 3.Β See where I am going with this people? This is HIGH ORDER THINKING at its finest!! Discuss it with your students and decide where to place it. In future games, I let them pick but while we are still learning, we all put it in the same spot–the ones place.
Last kid rolls, and obviously you put that number in the last open spot. Let’s say it is a “1”.Β Now that you rolled three times,Β evaluateΒ if you have made the highest number or not. {Can you feel the rigor?} In this example, you did not win π
The first few times we play as a class so we are all making mistakes or awesome decisions together.Β After a few rounds, I let the kids put the numbers where they want but of course I question some of their decisions.Β You always have that kid who throws out a 5 because they think they will roll two sixes next.Β And you ALWAYS have that sneakster who tries to erase numbers so they βwinsβ.
*I typically use whiteboards but you could also laminate the page below and have kids write on that. I stick them in protective sheets so they can still wipe off.Β Β Click hereΒ to get a free copy : )
*I was uber excited because I orderedΒ theseΒ inflatableΒ diceΒ at the beginning of the year.
However, I didnβt think to blow one up ahead of time.Β And I was 9 months pregnant.Β So blowing it up in a timely fashion wasnβt happening.Β Instead, IΒ panickedΒ thought quickly and used thisΒ virtual dice. What is awesome about the virtual dice is there are a bunch of different options like 1-4, 1-6 and 1-8!
Overall, I love this game because it can be short or long so itβs a great go-to if you have some extra time at the end of the math block.Β Once kids are experts, you could have it as a choice for centers or if they finish early.Β Add the hundreds or thousands place to differentiate.Β SO MANY OPTIONS!
Well I hope you will enjoy this place value game. Stay smart and sassy!
