Monday, October 17, 2022

Math Card Games

 

There are those days when you've just called role and the fire alarm goes off, or they announce a lock down or they've scheduled an assembly that starts or ends partway through your class and you do not have time to teach a regular lesson.  This can be the perfect day for playing card based math games with your students.  It is possible to get a bunch of used cards from the casinos for quite cheap so you can have a huge supply in your room.

Although these games are geared more for middle school students, you have high school students who can also play this game, especially since many are lacking certain skills due to Covid.  Card games make a nice change of pace from worksheets and lectures.  It gives students something physical to move around, see, touch, and experience.  In addition, it makes it fun for students to practice the concept or topic again and again.

1. Multiplication war - this is a variation of the multiplication game played in elementary grades.  The ace is worth 11, Jack is worth 12, the Queen is 13 and the King is worth 14.  The other cards value is the face value so the 2 is worth 2, the three is 3 and so on.  In addition, all black cards represent positive numbers while the red cards represent negative numbers. This game is played by two people for each deck, so the cards are dealt evenly between the two players so each one has 26 cards.  

Begin by flipping the top two cards on each pile.  The students multiply the two cards together and the one with the highest product is the winter and claims all four cards.  They turn two more over and multiply and the person with the highest product wins.  If the two people flip cards that result in the same product, the four cards are set to the side and they flip over two cards.  The person with the highest product wins the cards in this round and the four that were set aside.   When students have gone through all the cards, they take the ones they've gotten and start through the stack again.  The winner is the one with all the cards or the one with the most cards at the end of the time.

2. Exponent war- this is a variation of multiplication war.  Again it is played by two students per deck of cards.  The cards are dealt evening between the two students.  This time the face cards are worth 10 each or they can be the jack is 12, the queen 13 and the king is 14, and the ace is worth one or 11 but this needs to be decided before the game starts.  The top two cards are flipped over, the first card is the base number, the second is the exponent. The student with the highest product, gets all four cards.  If the two cards end up with the same product, the four cards are set to the side and participants draw two more cards.  The person with the highest product gets all four and the four set to the side.  The game is over when one person has all of the cards or has the most cards when the time runs out.

3. Hit the target number - uses multiplication/division, addition/subtraction, order of operations, and mathematical reasoning.  The ace is worth 1 or 11, the jack is 12, the queen is 13, and the king is 14. Divide students into groups of between 2 and 5 people and each group gets a deck of cards.  Students choose a target number of 1 to 30.  Then one person turns over the top 5 cards from the deck.  The students work together to find the way to combine the numbers using any operations necessary to arrive at the target number. If students cannot find a way to get to the target number, flip another card.  When they reach the target number, take these cards out of play, choose another target number and flip over another 5 cards. 

4. Collaborative fractions.  All face cards have a value of 10 and the ace is worth 1 or 11.  Divide students into small groups and make sure each group has a deck of cards and each student has a pencil and paper.  Decide ahead of time if the students will add, subtract, multiply, or divide the fractions.  Draw four cards, the two largest cards are the denominators, the two smallest cards are the denominators.  Students then take the two fractions, apply the operation to them, and come up with an answer using paper and pencil. The answer needs to be in its simplest form.

These are four games to get you started.  Have fun and let me know what you think because I'd love to hear.  Have a great day.


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