Reflective: We will reflects of the impacts, advantages and disadvantages of greater human movement.

Objectives

• Find out: How humans have traveled over time, and how they represented their place in space?

• Explore: the effects of forces on motion, and how we have learned to travel faster.

• Take action to investigate consequences of mass transportation by motor vehicles on local and global environments, and communicate your scientific opinions on the impact of measures to limit pollution from cars.

Reflection

In this unit, we have described how early humans traveled across the Earth, and summarized the ways in which human civilization developed measurements. We have constructed charts and graphs to present information on motion in space and time, and determined speeds, velocities and accelerations from those charts. We have described how forces affect motion, and demonstrated what happens when forces balance. We have described how transportation systems have developed in time, and evaluated the impacts of mass transportation on local and global environments.

ATL Skills

• Collaboration skills

• Information literacy skills

• Media literacy skills

• Critical thinking skills

• Creative thinking skills

Assessment

• Criterion A: Knowing and understanding

• Criterion C: Processing and evaluating

• Criterion D: Reflecting on the impacts of science.

Links to Other Subject

1. Scientists who study the history and behavior of human beings are known as anthropologists. The evidence of early human history is gathered using scientific techniques by archeologists.

Accuracy and precision

When scientists make measurements, they need to be sure that the measurements are reliable. This means

that whoever makes the measurement, wherever they are made and under whatever conditions, the answer obtained will always be the same.

If a number of measurements are precise, they will be’in close agreement with each other.

If a measurement is accurate, it will be close to an expected value.