Have you ever noticed that regardless of which place on Earth we are, we all see the same shape of moon on the same day? Have you ever noticed that the illuminated part of the moon changes sequentially and cyclically?

In this teaching unit, we’d like students to understand how the relative positions of the sun, earth and moon influence each phase of the moon, how to determine this phase for a given day,

Imagine travelling from one planet to another. Why is it that we have to first travel in circles instead of taking the straight path? Before going on our trip, we must consider: the revolution velocity of our starting planet, the required spaceship velocity, and the optimum momentum for launching the spaceship (because if we miss it, we’ll travel past the target planet, without even noticing it). Finally, we

Why do apartments in the same building have different prices? Why is a flat on an upper floor more expensive than one on a lower floor? We all know that this has got something to do with light and the luminosity of rooms.

This teaching unit encourages students to conduct a field study and collect data on the surface area of apartments and windows, orientation and level of the floors as well as the prices of

In this teaching unit students measure or calculate the time of sunrise and sunset on a given day as well as the length of that day, and design the graphical representation of the heights of the sun on the horizon throughout the day. Students can also keep tabs with the data obtained for one day, then repeat the calculations for another day and compare the two. Students of this unit should be between 15 and 18