Curated OER
How Many Toothpicks?
Students investigate different geometric patterns. In this geometry lesson, students create different shapes using toothpicks. They create different patterns and designs and complete a charts using different measurements.
Texas Instruments
Texas Instruments: Let Me Count the Ways
In this activity, students will make predictions about the number of ways to make eleven with two or more addends. They will investigate patterns with these addends with the help of manipulatives and the calculator.