Big Brain Shows Lesson Plan Episode 21 • March 9, 2026

Flowers, Rockets, and One Hour of Time Travel!

Main Lesson Takeaway

"Science and technology shape everyday life—from how we set our clocks, to how plants grow and reproduce, to how satellites help people communicate across long distances."

The Hook (Pre-Watch)

Ask the class before watching:

"What’s one everyday thing you use (like sleep schedules, gardens/food, or the internet), and what do you think is happening behind the scenes to make it work?"

Vocabulary Focus

circadian

Circadian means your body’s daily rhythm that helps you know when to sleep and wake up.

After we spring forward, our circadian rhythm can feel confused, so getting morning sunlight can help our bodies adjust.

pollinators

Pollinators are animals like bees and butterflies that help plants make new seeds by moving pollen from flower to flower.

In a school garden, pollinators might visit the flowers and help them grow seeds for next season.

satellites

Satellites are machines that orbit Earth and can send and receive messages or signals.

When a town is far from cables, satellites can help deliver internet by bouncing signals through space.

gravity

Gravity is the force that pulls things toward Earth.

A rocket needs a huge push to fight gravity and carry satellites high above the clouds.

Discussion & Reflection

Have students answer these questions after watching the episode.

1
What’s one place you’d like to have better internet, and why?
2
If you could design a garden theme, what would it be?