Enriching Extension Activities: Grinch Escape Room

Ready Math has an enrichment activity for nearly every math lesson. These are usually accompanied by a worksheet. The papers can be printed, photocopied, and distributed for students to complete during independent time. The worksheets have thorough instructions on them, sometimes with examples, so that students can manage the assignment without teacher help. 

In the “Teacher Toolbox” you can find an array of tools for each lesson for every grade. I like to start off with checking out the “Extend” ideas and adapt them to meet my students’ needs.

The idea is for students who’ve attained mastery of the subject to apply their skills to slightly more challenging tasks. It’s nice for the teacher to have something concrete to look at after the student is done. This evidence of work and proof of advanced mastery can be shown to parents and back up grades on report cards. 

One problem with this is that students aren’t always thrilled about being rewarded with a worksheet when they understand and are good at a math concept. It’s helpful for a teacher to introduce the worksheet. They can spice up the assignment with some extra enthusiasm. It might be helpful to pave the way for success with a check for understanding of the assignment. Perhaps the teacher could introduce a twist to the pre-made project, including an additional step or task.

When I am preparing an enrichment activity, I try to provide an opportunity to use the math concept in a real world scenario. We all remember the age-old question, “When will I ever see this in real life?” uttered with a groan and eye-rolls. This is my aim: Show students situations where their math lesson would actually be found. 

Another goal of mine is to help students grow their thinking muscles. Perhaps there isn’t a clear use of Pythagorean’s theorem in everyday life, but it can be used to sharpen geometric and algebraic understanding! Puzzles are great for this. 

I recently used one of Ready Math’s enrichment assignments to challenge a group of fifth grade students. The lesson/worksheet looked a little like busy work; It involved adding and subtracting four-digit numbers with decimals. You needed to be handy with the math to complete the task with accuracy, but I didn’t see any way that the student would be richer having completed the assignment. 

One of the first things I do when attempting to turn a pre-made assignment into an enrichment activity is see if there is some bit of information or number that can be taken away. Can I remove something, and the students still figure out the answer? 

The assignment that I was looking at was a three by three grid with some boxes filled in and others blank. Every row and column, as well as the diagonal lines crossing the center square, all add up to the same number. The worksheet tells the students what the shared sum is. Can I remove that final answer and students still figure out what numbers would go in the boxes? 

I tried it out in my journal. The way I saw it, there’s no way around having at least two unknowns. I could ask the students to figure out multiple correct answers; sums of every row and column, but this kind of activity stretches beyond enrichment and requires gifted thinking. That is a topic for another blog; the difference between enriching math and providing gifted instruction. 

I tried playing around with the numbers in my journal.

Still liking the idea of removing the sum that all of the numbers share, and making students really dig for the gold of their lesson, I decided to limit the unknowns by providing parameters. I began writing these into hints or clues. Then, the lesson morphed into a type of riddle. I left gaps in the clues, so that students would have to address a few empty boxes in order to solve the entire grid.

As the project evolved, it struck me that I could pretend the problem was a lock that prohibited the class from leaving the room; It facilitated an escape room sensation. This would be the way that I presented the whole problem! I’ve been wanting to explore the use of escape rooms at school. This could be a great start. 

I prepared some more clues for bits and pieces of the four digit numbers within the grid. I put an image of the grid into a Google Jamboard. Then, I copied the riddles and pasted them into “sticky notes” that got spread out around the grid. I themed the whole thing with Grinch, and it was ready for “production.” 

The fifth graders loved it. When I told them that they were stuck inside the Grinch’s lair, their faces lit up! “The Grinch, that big ole meany went and scribbled over the sum that we need to solve this grid. He left us several riddles to figure it out. You can’t leave the room until you do.”

Everything was going great… Until… One of the students had actually completed this particular worksheet in the classroom, as an extension activity. My heart instantly sank. Did the Grinch steal my Christmas? Luckily, I’m pretty good on my feet, and I told them that we can still use this whole activity in order to learn how to make up our own riddles and clues, so that we could develop another, future escape room that other students could have to solve. Everyone was cool with this new plan.

I wrote an equation on the board, using as much information as was available. Then we filled in missing pieces with information from the clues. I showed them how they could do this on their own in the future! It was still fun.

We continued exploring the clues, now with a new purpose. Granted, we were working backward, since we already knew the final answer, but that was okay because the students were able to see how the clues functioned. I showed them the way you can start with an answer, analyze the number’s attributes, and make up hints that color and shade the number, without giving it away. They seemed to like it, and we still had to do some adding and subtracting of four digit numbers containing decimal points! 

This lesson wasn’t over when this group of students left, however. The way fifth grade math enrichment works in my school, I meet with a different group of advanced math mastery fifth grade students in afternoon. I told the AM students to not tell the afternoon math students the answer, just in case none of them had completed this particular assignment. Then the Grinch let them out;) 

Between the groups, my fourth grade gifted students painted a giant Grinch face to hang up over the door. That was fun.

When the afternoon students entered the room, I pitched the escape from the Grinch’s Lair idea the same way I had with the morning crew, but with the understanding that they may already know the answer, like the first group. One student of the eight or so kids had done this assignment and knew the answer, but he was a good sport about keeping it a secret. 

Since I had thoroughly examined the entire riddle with the first group, I was well-versed in the clues and could easily present them to this final class. I let them wrestle with the ideas. As it turned out, you could figure out the final answer before getting all the way through the final clue. That was interesting to learn. The experience was pretty fun, and they got plenty of practice adding and subtracting numbers containing decimals. 

I’m definitely looking forward to making more lessons containing clues and using the escape room scenario to encourage tension and motivation! It was really nice to have a pre-made template from Ready Math to build from; or, more accurately take away from. But, in the future, I’ll have to be careful about assuming kids hadn’t used the lesson before. 

Box O’ Blocks: Math Enrichment

Looking for a fast math lesson to extend learning and use critical thinking? You’ve come to the right place. Because I only get to see my gifted students for 40 minutes a day; and that includes walking in the door, settling down, packing up, and exiting; I must make my lessons quick. Recently, I built onto a lesson that I loved in the past: “Box O’ Blocks.” 

Prep: Take those classic, little-kid, wooden blocks and stick 3-digit numbers on the sides. Put them in a box. You are ready to go! 

If you don’t have access to blocks, you could draw, color and cut out different shapes on card stock or index cards. Basically, simulate the classic building blocks, but 2 dimensional. Have the kids make them for ownership of the game. (Instead of “Box O’ Blocks,” it could be “Construction Cards.”) This would be easier to store, lend to other classrooms, as well as quieter;)

I began with a game so simple my 3rd graders could learn and play without use of any writing materials. Pull three blocks out of the box. Round them to the nearest hundred. Add them together. Closest to a 1000 wins.

Our first round had two teams get 700 and the third sum was 1300. At first they thought that thirteen hundred won. “Wait a minute,” I warned. “Are you sure?” Upon revisiting the numbers after I wrote them on the board, my students realized it was a tie! 

After a few rounds of this, I introduced the idea of trading a block. “If you could trade a block to make your total closer to a 1000, which one would you eliminate?” They hadn’t seen all of the numbers but enough to make an educated guess. “If you have three blocks, and they are the numbers 513, 522, and 346, you might want to trade the largest. It puts you way over 1000. This would make room for a block closer to 200.” 

Another fun variation that you could try; I didn’t, so I don’t know how well it would work, but it seems fun; is to let teams trade with each other. 

Here’s some easy-to-use enrichment: Rather than round to the nearest hundred, have students round to the nearest ten. Or, you could do what I did in my original lesson; Don’t have them round at all. They will need paper, dry-erase boards, or iPads to write on for this. 

What I did with my gifted students is I had them actually construct towers that they measured to use an additional 3-digit number for lowering or raising the sum of the original three blocks as necessary. Here’s how it worked. Pull three blocks from the Box O’ Blocks. Round to the nearest ten. Add the three numbers. Evaluate how close you are to 1000. The difference is what you want to make up. If you are over a 1000, you want to take away from your sum. If you’re shy of a 1000, add. Next, you get to build! 

Students construct towers with their three blocks. They then use rulers or yardsticks to measure from the base of the structure to its highest point. Round to the nearest inch. Multiply that number by ten, and either add or take it away from your original sum. The trick is that the students can reconfigure the structure to be taller or shorter. 

This lesson incorporates an idea I had several years ago: Action. I wrote a blog all about an elaborate lesson involving purchasing blocks, constructing castles, homes, structures and renting them to make back their initial investment (purchase price). It was fun, but long; Great week-long project. 

Looking at the Jamboard images in Google Classroom makes it super easy to assess.

The way that I assessed the success of each group/student and the lesson was through the use of Google Jamboard. I made a Jamboard with the instructions on the initial board, leaving plenty of blank space. This was pushed out through the Google classroom, “mak(ing) a copy for each student.” I modeled how to use the Jamboard to take pictures of the blocks, showing the numbers. Then I used the writing tools in Jamboard to write the rounded amounts of each block. I added them all together for a total that could be evaluated next to a thousand. We discovered that I was over one thousand, so I will want to subtract. Once we got the blocks to reach the perfect height, where the number of inches times ten would lessen my original number just right, I used Jamboard to take a final picture and show my last computations. 

It is very easy to create a new board by pressing an arrow at the top of the screen. Then you start over. Pull three new blocks…

One group was 380 more than 1000. They were trying to make their tower 38 inches high, so that they could take 38X10 away from 1380. I told them to trade one of their blocks for another from our Box O’ Blocks. When they went to trade a teeny tiny one, I questioned them. “That block is only 300 (It was actually 296). The other two are both over 500. If you traded one of the blocks that was worth a lot, you might not need to construct as tall a structure.” They were interested in trading the tiny block because they were aiming for height, but was that the best strategy

I summarized this story to close our class time. And, it was off to collect some more gifted students from a different grade to teach a different lesson.