Teaching Place Value to First Graders with Bundles of Ten

Teaching place value concepts to first graders often requires a shift in how they perceive numbers. I still remember a student I once taught who could count to one hundred perfectly but hit a wall the moment we moved into two-digit numbers. She saw the number 24 and kept trying to count twenty-four individual units, never realizing that those two digits were not just arbitrary symbols. She needed a way to physically see that the ‘2’ in the tens place really meant two groups of ten, not just a two. The Bundles of Ten lesson exists exactly to solve that specific hurdle for your first graders.

This is a foundational concept in first grade mathematics that bridges the gap between rote counting and true number sense. The lesson focuses on the objective: I can count groups of ten to make numbers. It teaches students that ten individual ones can be bundled into a single unit called a ten. This visual shift from individual objects to a grouped unit is exactly what first grade place value practice is meant to secure. When you walk around the room, listen for students who can articulate that they are holding a group of ten rather than just counting to ten again. It is a subtle shift in language that shows the lightbulb has turned on.

Understanding the state standard

The lesson aligns with CA.MATH.1.NBT.2a. This California-adopted standard asks students to understand that the two digits of a two-digit number represent amounts of tens and ones. Specifically, it highlights that 10 can be thought of as a bundle of ten ones, which we call a ten. This is the same standard taught in classrooms across the state, from Newport-Mesa Unified and Riverside Unified to the Greenfield Union Elementary School District and Cabrillo Unified. By standardizing this early on, we ensure that students are not just memorizing numbers but are actually building the mental model of how our base ten system functions.

What the lesson actually asks students to do

The material keeps things lean, requiring about fifteen minutes of focused work. Students look at collections of items and learn to mentally or physically group them. They are moving away from seeing a pile of twenty-four items as twenty-four distinct units and starting to see them as two tens and four ones. The vocabulary is minimal but precise: you are working with ones, tens, and the process of bundling. The core concept is that a student learns to recognize that a bundle of ten ones is equivalent to one ten. This is not about complex arithmetic yet. It is purely about composition and decomposition of numbers using place value.

One caveat to watch out for is that some students will get stuck on the word ten. They understand the count but not the grouping logic. If you find a student struggling, try having them physically band ten craft sticks together with a rubber band. That tactile act of creating a bundle usually helps cement the definition of a ten. Do not rush them into adding or subtracting two-digit numbers until they can look at a pile of objects and instinctively identify how many tens are hidden in that pile.

Fitting this into your weekly plan

Since this lesson is concise, it fits perfectly as a quick intervention for a student who missed the week or as a focused activity during independent study. I have also seen it used effectively during a substitute day when you need a high-impact, short lesson that maintains the continuity of your math block. It is low-stakes enough that it does not disrupt your flow, but it addresses a concept that can cause significant frustration if left unaddressed. Use this when you are introducing the unit, or keep it in your back pocket for those mid-week days when you notice the class is struggling to name numbers beyond twenty.

If you see your students still counting by ones while trying to handle numbers like forty-five or sixty-two, take the fifteen minutes to assign this. It resets the expectation that we count in groups of ten whenever possible. By the time they finish, the goal is that they see the tens digit and immediately identify it as a bundle of ten, rather than having to count up from zero. It saves them so much cognitive energy as they prepare for addition and subtraction later in the year.