Are you looking to give your students a real-world, engaging challenge when calculating elapsed time?
Error analysis problems are a great way to check your students' understanding of a concept. Instead of just solving the same problems again and again on a worksheet, they have to use their critical thinking skills to determine where, if anywhere, the example student(s) went wrong. This forces them to think outside of the box and develop a deeper understanding of the WHY behind the procedures and processes.
This download includes five error analysis problems that practice finding elapsed time in word problems. There is one problem that focuses on the number line method, one problem that focuses on the t-chart method, and 3 problems that can be solved using any method. They are mixed up in terms of the information given (start time, end time, elapsed time).
This product perfectly aligns with 4th grade Common Core standard:
“Use the four operations to solve word problems involving distances, intervals of time, liquid volumes, masses of objects, and money, including problems involving simple fractions or decimals, and problems that require expressing measurements given in a larger unit in terms of a smaller unit. Represent measurement quantities using diagrams such as number line diagrams that feature a measurement scale.”
These tasks would be great to use during guided math centers, whole-group centers, or independent practice.
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