# Activities to Teach Students to Use Models to Add Three-Digit Numbers – With Regrouping

Mathematics is an essential subject in school that introduces children to a world of problem-solving and critical thinking skills. Amongst the numerous mathematical concepts, addition is one of the primary operations taught to students. As they progress in their learning journey, they encounter addition of three-digit numbers, and this is where the use of models becomes a crucial aspect to simplify the learning process.

Models are vital tools that provide students with a visual representation of the problem at hand. It enables them to better understand the concept and subsequently apply it to different scenarios. Here are some activities that educators can use to help their students grasp the concept of three-digit addition with regrouping using models:

1. Base 10 Blocks

Base 10 blocks are ideal models for teaching young learners how to add three-digit numbers with regrouping. These blocks come in various shapes and sizes to represent a value based on their respective denominations. For example, a cube represents a hundred, rods represent tens, and units represent ones. Using the blocks, educators can demonstrate how to add three-digit numbers while regrouping and guide students through the process. After which, students can use the blocks to solve similar problems independently.

2. Place Value Charts

Place value charts are essential tools that help students understand the relationship between digits and the value they represent in the number system. Place value charts show the value of a digit in the ones, tens, hundreds, thousands, and so forth, columns. Using place value charts, educators can demonstrate how to add three-digit numbers with regrouping and guide students through the process step by step. Afterwards, students can practice similar problems independently using the charts.

3. Number Lines

Number lines are linear representations of numerical values arranged sequentially. They are useful tools for visualizing the addition of three-digit numbers with regrouping. Using a number line, educators can demonstrate how to add three-digit numbers while regrouping and guide students through the process. After which, students can use the number lines to solve similar problems independently.

4. Word Problems

Word problems are an excellent way to challenge students’ critical thinking and problem-solving skills while also applying the concept of three-digit addition with regrouping. Teachers can create word problems that require students to add three-digit numbers while regrouping and provide models and visual aids such as base 10 blocks, place value charts, and number lines, to help solve them. Students can work individually or collaboratively to solve these problems and share their solutions with the class.

In conclusion, teaching three-digit addition with regrouping can be an exciting and engaging experience using models and visual aids such as base 10 blocks, place value charts, number lines, and word problems. These activities provide students with a better grasp of the concepts, resulting in better problem-solving skills and growth in their mathematical competency. Teachers can make use of these activities to make learning more interactive and intriguing for students while enhancing their abilities in mathematics.