Create your own centimeter ruler. Then, estimate and measure with lengths with it. Warm up with a Mystery Math Mistake as you add two 2-digit numbers using a decomposition strategy. Think through ...

DNA Mathematics professional development empowers educators to master the mathematics being taught in classrooms. To exemplify the benefits of DNA Mathematics, download our FREE white paper now to ...

In this lesson, students are introduced to the US Customary System of measurement. Mrs. Brewer shows the difference between the different units and gives examples of when we would use each. / Carrie ...

Researchers identified key variables for success in elementary math and beyond. Numbers, counting, and low-level arithmetic are three basic competencies that are vital to later success in math, and ...