Look! This cup wobbles when I rock it. What do you think helps something stay up when it wobbles?
Today's big idea: wide feet.
Which tower will stay up when we wobble the tray: wide feet or thin feet?
1. Build a tower with wide feet (three pieces spread out at the bottom).
2. Build a tower with thin feet (one piece at the bottom).
3. Make the tops the same height.
Give your tray a gentle nudge.
Which tower stays up? Which one falls over?
Look at the wide feet on this stand.
Say with a partner: Wide feet help because…
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