21
Lesson 21 of 84 · Past, Present, and Future
How We Tell Time
Families long ago and today are alike in many ways. They love each other, eat meals together, and celebrate special occasions.
Key Facts
1
Life has changed a lot over time.
2
Schools looked different long ago.
3
People used horses before cars were invented.
Check Your Understanding
Question 1
1 of 2What is history?