This Starting Point webpage describes a ConcepTest question that asks students to carefully examine the relative positions of lettered arrows on timeline and estimate the geologic ages represented by each arrow. Students must identify which letter corresponds most closely to the age of the oldest known rock on Earth. The website includes the question, typical student responses before and after discussion, ... Full description.

This Starting Point webpage describes a ConcepTest question that asks students to review a map of tectonic plates and predict which pair of locations is moving closer together as a result of plate tectonics. The website includes the question and references and topics covered by the question. Full description.

This Starting Point webpage describes a ConcepTest question that asks students to match the features in a relative time diagram with the events described in short sentences. Students are to assume all rocks are sedimentary unless otherwise indicated. The website includes the question and references and topics covered by the question. Full description.

This Starting Point webpage describes a ConcepTest question that asks students to examine a map and answer the question, how many plates are present? Students are to answer the questions using a diagram representing continental lithosphere, oceanic ridges and trenches and oceanic lithosphere. The website includes the question typical student responses before and after discussion and additional references ... Full description.

This Starting Point webpage describes a ConcepTest question that asks students to examine a map and answer the question, at which location in the diagram below would the waves break closer to the beach? Students are to answer the questions using a diagram representing three possible beach geometries. The website includes the question and additional references. Full description.

This Starting Point webpage describes a ConcepTest question that asks students to evaluate a diagram depicting the confluence of two perennial streams. Students must evaluate the diagram and answer a question regarding stream velocity with respect to geometry of the confluence. The ConcepTest includes additional references. Full description.

This Starting Point webpage describes a ConcepTest question that asks students to consider a map of the world and identify which direction a specific ocean current is flowing. The website contains related notes and additional references on ConcepTests. Full description.

This Starting Point webpage describes a ConcepTest question that asks students to address the question, which location (rock unit) would have the potential for the best groundwater production? They are to address a given diagram to answer the question. The website contains additional notes and references as well as statistics for typical student answers before and after discussion. Full description.

This Starting Point webpage describes a ConcepTest question that asks students to evaluate a concept map and match arrows on the concept map to processes depicted in the diagram. The diagram illustrates the Hydrologic Cycle. The website includes additional notes and references and the correct response to the question. Full description.

This Starting Point webpage describes a ConcepTest question that asks students to fill in the blank. Concrete is formed by adding cement and water to a mixture of sand and gravel. This could be seen as an analog for the formation of a _________ sedimentary rock. The website includes typical student responses before and after discussion, additional notes and references. Full description.