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In this math lesson, learners make estimates to analyze the number of apples per acre, and visualize the magnitude of one million.

In this math lesson, learners apply the concepts of ratio and proportion to the capture-recapture statistical procedure.

This guided inquiry three-part activity engages learners in thinking about the mechanism of natural selection by encouraging them to formulate questions that can be answered through scientific investi

This guided inquiry three-part activity engages learners in thinking about the mechanism of natural selection through data collection and pattern recognition.

In this activity related to climate change, learners create and explore topographical maps as a means of studying sea level rise.