48 ◆ Problem Types Across the Curriculum
Figure 3.1 2
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Tom spent 2 hours and 50 minutes fishing. He finished at 5.Part A: Write the time
What time did he start?
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Part B. Draw his start time on the clock.Part C: Explain your thinking. Use numbers, words and a model (table,
number line or the diagram (mountains, rocks.. .).If students use the different models and strategies to solve these prob-
lems, they become more proficient. Tables, diagrams and number lines all
help students to break down the problem.
Tables/T-charts
Kelly left her house at 1:15. She was gone for 2 hours and 25 minutes. What
time did she come back?