The concept that I choose was one that my grade 4 class struggled with early on in the school year. Understanding the lunar cycle, phases of the moon, along with the tilt of the earth’s axis and its impact on the various seasons was a challenge for them. I used various demonstrations with a globe, flashlight and pictures on the projector. When they completed an extension activity afterwards, many of them still couldn’t explain how those things worked.
3 Step T-Gem cycle
|Discuss the moon and Earth’s gravity and rotation|
|Generate||Demonstrate the rotation of the Earth using a model around the Sun.
Use a flashlight to shine on various parts of the and Earth to show where light would hit and various times of the year and day. Ask questions about where the students think it is cold/hot, daylight, nighttime
|Evaluate||Allow students to create their own diagrams of the Earth’s rotation and demonstrate how that impacts the various seasons.|
|Modify||Ask students to consider their original ideas then consider how the various shapes of the moon are impacted by the rotation around the Earth|
I found a website the models lunar phases and provides students with a few different vantage points with regards to positing on the moon and what that would look like on earth based on the different times and days of the year. You can see the sun rise and fall as the clock moves throughout the day, the moon’s position around the earth change, as well as the calendar year moving through each day.