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RightStart™ Manipulatives

What’s so special about the manipulatives used for the RightStart™ Mathematics program? Let’s run through the list. NOT AVAILABLE ELSEWHERE: AL Abacus: This abacus has 100 beads and is grouped in 5s and 10s using color. It is different from the ... Read More

Dr. Cotter and Geometry

For years geometry was not considered a topic that primary students could or should study, even though they are surrounded by geometrical shapes. I had no geometry in school until 10th grade. Sometimes teacher education programs provide little ... Read More

Dr. Cotter on RightStart and Montessori

Most people have heard of Montessori, but often they are not sure what it’s all about. The word Montessori refers both to a person, Dr. Maria Montessori (1870-1952), an Italian physician and educator, and the Montessori method of education she ... Read More

Dr. Cotter on Technology

When you hear the word technology, you probably think of computers or tablets. But calculators have become an essential electronic tool for performing more complicated arithmetic. People had been seeking simpler ways to perform calculations for ... Read More

Dr. Cotter on Language

In mathematics we can’t do much without using language. Even though the mathematician may write a mass of equations, she needs words to explain their meaning. Good math instruction requires careful attention to the terms used. We don’t want students ... Read More

Dr. Cotter on Development

The terms development or developmentally appropriate are frequently used, but finding good definitions is difficult. A dictionary defines develop as growing and becoming more mature or advanced. We see physical development in the young child. We know ... Read More