Timeline listing events in the history of ideas in science education

construct a timeline listing events in the history of ideas in science education. Use the timeline constructed in Module 3 to choose two most critical events for each time period. Use the information from DeBoer
Chapter 8 to add to your group's timeline indicating change and trends in science education from
1960 - 2020. Include the following sets of dates:
1840 – 1870
1870 – 1900
1900 – 1920
1920 – 1940
1945 - 1957
1957 – 1978
1978 – 1990
1990 – 2010
2010 - 2020