Fibonacci, or more correctly Leonardo da Pisa (also called Leonardo Bigollo) , was born in Pisa, Italy in 1175. He travelled widely in...

Really? Perfect numbers? How can one number be more or less perfect than another? Perfect numbers were thought to have important numero...

At  Excel Math , we focus on both the profession of teaching and "the professional" (the teacher) when creating professional dev...

In Excel Math , we begin teaching children about place value in kindergarten by having them arrange and sort objects. By first grade, studen...

Professional Development, inservice training, PD, staff development, professional learning network (PLN), teacher training—there are as m...

The United States presidential election (along with many state and local elections) is fast approaching, and it's not too late to get ...