In this case the teacher is facilitating students' learning as they design a controlled scientific experiment, collect data and use mathematical skills to analyze relationships between variables, adjusting the design of their lab as needed.

In this case the teacher is facilitating groups of students investigating what makes balls roll faster down a ramp and students are making their own ramps, measuring and recording distances using nonstandard measurement.

In this case the teacher is implementing a whole-class discussion on constant velocity motion based on a lab experiment and students are analyzing and interpreting the data they collected on different scenarios using contant velocity buggies.

This case shows a teacher helping students learn about 3-D shapes and predicting which shapes might roll the furthest and students engaged in a cooperative activity rolling the shapes, measuring and recording data.

This case shows a teacher working with a variety of learners on the topic of balance and motion and students designing toy cars and ramps to see which design will cause the cars to travel furthest while collecting, recording, and interpreting their results.

This case shows a teacher working with students to investigate force and motion by rolling toy cars along different surfaces to discover which will travel furthest, then collecting, recording and analyzing this data.

This case shows a teacher leading his students through various electric field model configurations and students making and discussing their observations, questioning and predicting the charge distributions.

In this case the teacher is guiding students in determining the investigative question they will explore about elasticity and students are asking questions, determining how to quantify differences in their investigation, collecting and analyzing data, and having a class-wide "board meeting" to share results and equations.

This case shows a teacher working with students to design investigative questions about mechanical interactions and students developing testable hypotheses, conducting their investigations, and addressing sources of possible error while analyzing their results.

In this case the teacher is facilitating students designing an investigation based on Newton's Second Law and students are designing, conducting, and analyzing their investigations, culminating in a collaborative effort of sharing and discussing their data to draw logical conclusions.

In this case the teacher is facilitating a project on projectile motion and students are applying their knowledge of physics and math by testing their own designs and hypotheses. The students prove their understanding of the relationship between measurements, formulas, and variables to achieve the outcome of landing their projectile on different targets.

This case shows a teacher assisting students in their investigation of magnets and students determining the relationship between force and the number of magnets they need to answer their guiding question.

This case shows a teacher effectively working with groups of students discovering about force and motion and students thoroughly engaged in an activity where they are using ramps, balls, a truck and measuring tools to determine how force is related to motion.

In this case the teacher is facilitating groups at centers and students are investigating how friction affects the distance a puck travels using nonstandard units of measure.

This case shows a teacher visiting different groups engaged in a simple machine activity and students using spring scales to calculate the amount of work needed to lift different objects.

This case shows a teacher working with a variety of learners to investigate force and motion by rolling toy cars along different surfaces to discover which will travel furthest. Students collect, record and interpret this data.

This case shows a teacher working with groups of students making discoveries about constancy and change in forces and students engaged in an activity where they are building ramps and measuring how far their chalk rolls.

This case shows a teacher asking students to make predictions based on a change in slope or surface of a ramp and students discussing their predictions regarding the distance a car travels down the incline.

In this case the teacher is facilitating students' work with objects sinking or floating and students are observing how solids behave in water, recording data, and trying to determine why certain things float and others sink.

This case shows a teacher building on his students' interest in the design of competing skateboard parks and students analyzing the problem while viewing a simulation and integrating measurement skills for quantitative analysis of energy and velocity.