- to tell time to the minute, using digital and analog clocks and
- to determine elapsed time to the minute.
Recently, a G3 teacher introduced a model to her students that they could use to concretely represent the abstract concept of elapsed time.
The model allows students to show time passing on a timeline. Students represent the passage of time with different geological features:
- A mountain = 1 hour
- A hill = 30, 20, 15, 10, or 5 minutes
- A rock = 1 minute
The class used this anchor chart as they learned how to use the model.
The following are some examples of students using the concrete model to represent the abstract concept of the passage of time.
|In this example, the child jumps over a small hill (10 minutes) and a rock (1 minute) before jumping over a larger hill (30 minutes) in order to get to an even time (5:00).|
This same model could also be used to make sense of other abstract mathematical concepts, such as
- the passage of time on a greater scale (decade, century, millennia).
- representing multiplication as jumps on a number line.
- making change to a dollar could be concretely shown using this timeline model.
Click here to learn more about the Elapsed Time Mountain Strategy.