How does the tilt of Earth’s axis affect the light received by Earth as it revolves around the sun?

Guiding Question- How does the tilt of Earth’s axis affect the light received by Earth as it revolves around the sun? 

Hypothesis- I think when the earth is tilted more towards the sun it is summer because we get more sunlight and heat, therefore we have longer days which means that we have summer. When the earth is tilted away from the sun we have less sunlight and heat, shorter days and therefore it is winter. 

Observations- Summer

When we made our earth and its axis we had a grid and a light. We were shining the light into the grid which then reflected its squares onto the ball or earth. We noticed that when you move the grid closer it becomes bigger and when it is further away it becomes smaller and in a way shrinks and covers less space of the earth. We also noticed that the squares at the equator are more in the square shape then further up in the poles. Up in the poles the squares expand and then look like right angles. In conclusion I think that in summer the earth is tilted toward the sun which is why it gets more sunlight. Because we get more sunlight in summer our days are longer and our nights much shorter all due to sunlight.

Observations- Winter

When we did our observations for winter this time the squares were much more stretched out but also look more like squares on both the equator and the poles. Also when the grid is further away the grid looks like it does without light. It looks like squares. When we put it closer with light it extends and becomes bugger and wider but still looks like a perfect square only a big wider on each side. In winter the earth is tilted away from the sun which is also why we have less sunlight during winter and have shorter days and longer nights. All that is caused by the amount of sunlight that we receive.