Feed the Monster: A Wholesome, Math-Filled Adventure for Your Classroom

Welcome, fellow math teachers! Today, I’d like to walk you through a fresh, creative and hands-on math activity, perfect for your classroom. This thrilling activity, called “Feed the Monster,” promotes a deep understanding of numbers, divisibility rules, and team collaboration. Moreover, it’s adaptable to various grade levels and student abilities, ensuring inclusivity in your classroom.

Picture this: your students, broken into groups, are eagerly collaborating around tables. Each group has carefully drawn three monsters, each one with a different number of arms: two, three, and five. These aren’t ordinary monsters though; they’re hungry for numbers!


For this activity, all you need is paper, markers, and a deck of flash cards for each group. To kick things off, get each group to draw three distinct monsters. One with two arms, another with three, and a third with five arms. These monsters are famished and, surprisingly, they feed on numbers!

Next, distribute a deck of approximately 25 flash cards to each group. The flash cards should have numbers that are divisible by either 2, 3, or 5. Mix it up to make the game more challenging and engaging.

Gameplay Instructions

Once the groups have their monsters and flash cards, it’s time to feed the monsters! The game is simple, yet intellectually stimulating. The group needs to use their divisibility rules to figure out which numbers each monster wants to eat. The two-armed monster has a taste for numbers divisible by two, the three-armed monster prefers numbers divisible by three, and the five-armed one craves for numbers divisible by five.

The flash cards should be stacked on top of the appropriate monster. Once all the flash cards have been distributed, the teacher moves around to each table to check the groups’ work.

After the initial round of feeding, it’s time to introduce a bonus question. Display a new monster – a creature with six arms! The challenge? To identify if there are any numbers in their previously sorted piles that this new monster could eat.

If you’ve carefully chosen the numbers, there should be no cards with numbers divisible by 6. This is the golden opportunity for your students to think critically and list some numbers that this new monster could munch on!

Accommodations and Modifications

“Feed the Monster” is an adaptable game, able to cater to diverse classroom needs. For students with special needs, consider using larger flash cards, or incorporate assistive technology. You can use an interactive whiteboard to project images of the monsters and the flash cards for a more vivid and accessible experience.

In case of students who struggle with multiplication or division, start with lower numbers on the flash cards. This provides an approachable way to reinforce the concept of divisibility without overwhelming them.

For advanced students, increase the complexity by adding numbers divisible by larger primes, or introduce monsters with more arms. You can also challenge them by asking why certain numbers are divisible by multiple monsters. This encourages critical thinking and a deeper understanding of the properties of numbers.

Game Play Scenarios

To help you visualize the activity, let’s walk through a game play scenario:

Assume your group has flash cards with the following numbers: 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, and 25.

The students would sort these numbers by using their knowledge of divisibility rules. For example, the two-armed monster would get the cards with numbers 2, 4, 6, 8, 10, 12, 16, 18, 20, and 24.

Then, when you introduce the six-armed monster, the students must realize that there are no cards in the previous piles divisible by 6. They’ll then be encouraged to list some numbers, like 6, 12, 18, etc., that this monster could eat.

Feed the Monster

Feed the Monster is a fun, interactive activity that both challenges and encourages your students. It reinforces mathematical concepts and sparks curiosity. Not only do students learn and apply divisibility rules, but they also get to express their creativity through the drawings of the monsters.

This game aligns with several Common Core State Standards (CCSS) including:

  • CCSS.MATH.CONTENT.3.OA.B.5 (Apply properties of operations as strategies to multiply and divide)
  • CCSS.MATH.CONTENT.4.OA.B.4 (Find all factor pairs for a whole number in the range 1-100. Recognize that a whole number is a multiple of each of its factors. Determine whether a given whole number in the range 1-100 is a multiple of a given one-digit number)
  • CCSS.MATH.CONTENT.6.NS.B.4 (Find the greatest common factor of two whole numbers less than or equal to 100 and the least common multiple of two whole numbers less than or equal to 12)

Remember, the goal isn’t just about teaching maths – it’s about instilling a love for learning, encouraging creativity and critical thinking. Have fun feeding the monsters!

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