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This is an actual picture of student work-related from a

*Eureka Math*classroom.

When challenged with story troubles young kids will often arbitrarily include whatever number they see. The RDW procedure short-circuits this advertise by giving students tools to think around and model the relationship presented in a provided situation. This allows them come solve difficulties accurately.

In this process, we ask student to check out the problem and also think around what details is given. Do we understand the **whole** and also one **part**, in which case we have the right to subtract or counting on to find the **missing part**?

This job-related with the part-whole relationship helps student make sense of the problem.

Next, students attract a model to represent the information. The 2 models used most regularly to present the part-whole relationship are the number bond and the ice cream diagram.

In the trouble pictured, Precious determined to use the ice diagram. In the an initial part the the problem, she draws and labels the longer bar with **M** because that Milan, and 35 for the quantity. She draws and labels a shorter bar with **R** for Rene, and also the question mark to suggest the unknown. She brand the part she knows together 16. This version helps her see that she to know the whole and one part, therefore she knows she have the right to subtract. She uses the chip version to support her occupational with the individually algorithm.

In the second component of the problem, precious again uses the ice cream diagram to display the connection of the numbers, yet this time she chooses to use a different strategy come subtract, arrowhead notation. In both parts, Precious could have counting on or she could have offered compensation. This are other strategies she has learned in *Eureka Math*.

This student’s job-related shows detailed, specific choices quite than arbitrary combinations of numbers. It additionally shows versatile thinking. These are few of the hallmarks that *Eureka Math*.

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*This write-up is by Lisa Watts-Lawton, a great 2 command writer because that *Eureka mathematics *who also teaches full-time.*