This is one of my students’ favorite activities. They love exploring the intriguing patterns and making discoveries, and they don’t even realize they are engaging in rigorous mathematics.
Students encounter the 100’s chart in the primary grades, but did you know that there is a wealth of arithmetic and algebra embedded in the chart for older students as well? You can use the 100’s chart to teach many math skills such as number operations, mental math, integers, functions, writing expressions, using variables, working with binomials, combining like terms, and even writing algebraic proofs.
Your students will love diving into this engaging activity and will find rich mathematics of their own. Just try to stop them!