This case shows a teacher managing investigations focused on how a diet high in fat and calories could reduce the blood flow through the arteries and students working cooperatively as they measure, record, and analyze data.

In this case the teacher is delving into what students know about the relationship between photosynthesis and cellular respiration and students are comparing and contrasting these two processes while making inferences about the relationship.

This case shows a teacher leading a discussion about a field experience the class experienced and students discussing the heart bypass surgery they saw, comparing the 'real thing' with what they had expected to see, and discussing various medical careers they saw.

In this case the teacher guides students in an activity measuring transpiration rates of plants and then students design and carry out their own investigation, testing a factor that influences transpiration, sharing, and reviewing results with their peers.

This case shows a teacher assisting students in reviewing specific characteristics of organisms in the plant or animal Kingdom and students watching a video, then sharing what Kingdom to place the protist Euglena - plant, animal or other?

This case shows a teacher effectively helping students understand how form and function in the animal world help animals survive and students completing an engaging activity using different animal "mouths" to eat grapes, measuring and counting as they go.

This case shows a teacher facilitating a discussion and directing an activity on the digestive system with students developing vocabulary words and determining how their group's words compare with the other group's words.

This case shows a teacher facilitating an activity where the students are measuring plant growth and graphing and analyzing their data.

In this case the teacher is managing groups of students at stations doing activities about the form and function of birds and students are finding out what makes a bird a bird by measuring, comparing, sorting, and using tools.

In this case the teacher is managing groups discovering how bird beaks are adapted for eating specific types of food and students are using different tools in timed activities to see how much "food" different bird "beaks" can pick up, checking their hypotheses and recording data.

This case shows a teacher leading a discussion and a hands on activity about flowers to determine students' misconceptions and students using small whiteboards to record their ideas, watching a video, and dissecting bean seeds.

In this case the teacher is using the theme of animal bones to teach about the importance of evidence, models and explanation in scientific investigations and students are learning research skills, collecting data, making observations and hypotheses about animal bones before sharing their information with peers, defending or changing their hypotheses as needed.

This case shows a teacher effectively engaging students in a "Triage Activity" and students using scientific reasoning and classroom discussion skills to make meaning of the symptoms presented by patients in an emergency room, relating those symptoms to the interdependence, structure, and function of body systems.