While well intentioned, human intervention sometimes has negative effects. Learners explore this and other environmental topics as they respond to four free response exam questions. Topics span from the implementation of bioelectric cars...

Practice with unit rates, proportions, and ratios when Carlos purchases an amount of bananas. Learners must interpret a graph to decide whether points on the same line represent similar proportional relationships. Use with lesson plans...

Analyze data on a graph to answer three questions after a robot race. Learners practice comparing ratios and reading points on a graph. Answers may vary on the last question based on accuracy of graphing. Use the lesson along with...