Early Measurement Part 3: Unit Size Matters

Which row of flowers is longer? If you're wondering if this is a trick question, you're right. The three rows are all the same length. However, many children will say that the top row is the longest because it has the most flowers. While incorrect, this mistake makes sense. Children have spent a lot of … Continue reading Early Measurement Part 3: Unit Size Matters

Early Measurement Part 2: Length Measurement as Distance

What is the length of the crayon below? The answer is 3 inches, but many children will say 4 inches. We tend to teach measurement as a procedure: Line up the object with the zero on the ruler and find where the end of object is. This approach skips over the underlying concepts of measurement, … Continue reading Early Measurement Part 2: Length Measurement as Distance