Sponge Lab: Experimenting With Absorption part of MnSTEP Teaching Activity Collection:MnSTEP Activity Mini-collection
This activity allows students to brainstorm investigable questions, conduct an experiment, and communicate the results related to our invertebrate animal study; specifically sponges and absorption. (Lesson is based on an original activity from "Porifera's Porosity", Holt Science and Technology - Animals, Holt, Rinehart, and Winston 2002, pages 50-51.)

Measuring and Graphing Toy Water Animal Growth part of MnSTEP Teaching Activity Collection:MnSTEP Activity Mini-collection
This activity is an guided inquiry based lesson where students measure and graph data on a two-coordinate graph the growth of a toy animal submerged in water over a period of time.

Context-rich problem for cooperative group problem solving - Electric Force part of Pedagogy in Action:Library:Context-Rich Problems:Examples
Context-rich problem for electrostatics in an introductory physics class. The instructional setting uses cooperative group problem solving.