Let your students explore similarities and differences between arrays, and help them understand the commutative property of multiplication. Use this as a stand alone lesson or as a prelesson for Parking Lot Multiplication.

Why make things harder on ourselves? Teach your students to decompose numbers to make math easier! Use this as a stand alone lesson or a pre-lesson for Decompose to Multiply: 6, 7, 8, and 9.

Teach your students to confidently follow the steps of regrouping in subtraction problems. Use this as a stand alone lesson or alongside Regrouping with Popsicle Sticks: Double-Digit Subtraction.

The ability to analyze the component of a word problem is an important foundation for young mathematicians. Use this as a stand alone lesson or alongside What's the Problem?