Mr. Lee's Learners

Number sense is the foundation of mathematical understanding. When students develop strong number sense, they are able to reason about numbers, recognize patterns, and apply efficient strategies when solving problems. However, many students who struggle in mathematics have underlying number sense gaps that continue to affect their learning as concepts become more complex. As a math interventionist, I've found that identifying and addressing these gaps can often lead to significant student growth. Here are five common number sense gaps that can impact math success and ideas for supporting students. Disclosure: As an Amazon Associate, I earn from qualifying purchases. This comes at no additional cost to you. Y ou can find all resources mentioned in this blog post by visiting my  Amazon Storefront . 

Disclosure: As an Amazon Associate, I earn from qualifying purchases. This comes at no additional cost to you. One of the biggest challenges in math intervention is knowing whether students are actually making progress. It's easy to assume that students are learning because they seem engaged during lessons. However, effective intervention requires more than observations alone. Progress monitoring helps us determine whether students are responding to instruction and allows us to make informed decisions about next steps. The good news is that progress monitoring doesn't need to be complicated or time-consuming. You can find all resources mentioned in this blog post by visiting my  Amazon Storefront . 

One of the most common questions I hear from teachers and interventionists is: "How do you stay organized when working with multiple intervention groups?" When I first started providing intervention services, I spent far too much time planning, sorting materials, and trying to remember which students needed which skills. Over time, I developed a simple system that allows me to organize my intervention groups in about 25 minutes each week. The goal isn't perfection. The goal is to spend less time organizing and more time helping students. Disclosure: As an Amazon Associate, I earn from qualifying purchases. This comes at no additional cost to you. You can find all resources mentioned in this blog post by visiting my  Amazon Storefront . 

Math intervention can be incredibly rewarding, but it can also be frustrating when students aren't making the progress we expect. Over the years, I've learned that sometimes the biggest barriers to student growth aren't the students themselves—it's the instructional decisions we make. Here are seven common math intervention mistakes I've seen and what to do instead. Disclosure: As an Amazon Associate, I earn from qualifying purchases. This comes at no additional cost to you. You can find all resources mentioned in this blog post by visiting my  Amazon Storefront . 

Number sense is the foundation of mathematical success. Students who develop strong number sense are better able to solve problems, recognize patterns, and apply efficient strategies when working with numbers. As a math interventionist, I've found that small group instruction provides the perfect opportunity to strengthen number sense skills through hands-on activities and meaningful mathematical discussions. Here are 10 number sense activities that I regularly use during intervention groups.  These activities are particularly important for kindergarten and first grade groups that provide the foundation for future grades.   1. Quick Dot Images Show students a dot image for 2–3 seconds and ask them how many dots they saw. Encourage students to explain how they knew the quantity rather than simply counting each dot. This activity helps students: Subitize quantities Recognize number patterns Build mental math skills Classroom Tip:  Ask students, "What did you see?" instead o...

When working with students who need additional support in math, having the right tools can make a significant difference. I just completed my third year as a math interventionist.  Over those three years I've found that a handful of supplies consistently help students build number sense, stay engaged, and better understand mathematical concepts. If I could only choose five supplies for math intervention, I would start with dry erase markers, magnetic ten frames, two-color counters, dry erase erasers, and linking cubes. These tools support number sense, problem solving, and student engagement across multiple grade levels. 1. EXPO Low Odor Dry Erase Markers One of the most effective ways to increase student participation is to give every student a way to show their thinking. Dry erase markers allow students to solve problems, demonstrate strategies, and make corrections without worrying about mistakes becoming permanent. I use whiteboards regularly for: Number sense activities Fact f...

As mid-July hits, the Fourth of July holiday is in the rearview window, teachers find themselves in that strange summer limbo. Some are already shopping for back-to-school supplies, while others are still fully in beach mode (and rightfully so!). If you're somewhere in the middle—itching to feel  a little  more prepared without diving headfirst into full-on school mode—this post is for you. Here are five low-pressure ways to get your mindset and systems ready while still soaking up the last few weeks of summer: 1.  Reflect on What Worked (and What Didn't) Grab a notebook, open your notes app, or just take a quiet walk and think back on last year: What routines made your life easier? What was more stressful than it needed to be? Is there something you promised yourself you'd do differently next year? 2.  Declutter One Digital Space Instead of trying to reorganize your whole Google Drive, just pick one folder: Maybe it's your "End of Year" files or your math cen...