# Multi-Part Money Word Problems

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## Objective

SWBAT solve multi-part money word problems.

#### Big Idea

Students use their knowledge of addition, subtraction, and money to solve multi-part money word problems.

## Entrance Ticket

10 minutes

I start class by giving my students an entrance ticket.  As students work on the entrance ticket, I circulate to observe student work and strategies.

I give students 7-8 minutes to work on the entrance ticket.

This entrance ticket gives me as a teacher an idea of where my students are with these foundational money skills (like adding money amounts) that they will need in order to be successful on these multi-part money word problems.

## Introduction to New Material

10 minutes

I spend the Introduction to New Material time going over each part of the entrance ticket with the students. I cold call on students or groups to explain how they solved each component of the problem.  As I students explain, I model how they solved the problem on the board or I have them model their own thinking processes. This allows students who did not successfully solve the problem a chance to hear other student's thinking. It also allows students who successfully solved the problem hear multiple ways to solve one problem. (i.e: it is important for a student who solved the first part of the problem using column addition to also hear how a student solved the same problem by drawing the coins and grouping them).

As I go over the entrance ticket with my class I pay special attention to any student who is having problems adding the money amounts since that is such a foundational skill.

## Guided Practice

10 minutes

We are going to work on a problem in partners.

I hand out the worksheet.  (You can also post the problem on the board and have students do the problems in their math journals).  I give students coin and dollar bill manipulatives that they can use if they want.

As students work, I spend time listening to students' talk to one another about the problem of the day and observing what strategies they are drawn to. (MP5)

Students may solve these problems by:

1) Drawing the coins necessary to buy each item and matching them up.

2) Adding the item's money amounts together and trying to find a "match" for the coins at hand

Since students have seen problems similar to the problem of the day before, I listen to see if students are accurately using strategies we have discussed as a class for counting money, adding money, and drawing coins.

I bring all of the students back together and go over the guided practice in a similar fashion to when I went over the entrance ticket.

## Independent Practice

15 minutes

Independent practice is leveled into two groups:

Group A:  In need of intervention

I work with students in this group to model multi-part money word problems using manipulatives and help students to concretely visualize the concepts that we have been working on during this lesson.

Group B: On level and extension

Students in this group work independently or in partners to solve multi-step money word problems.  Students have access to manipulatives if they want but are encouraged to think more abstractly.

## Exit Ticket

10 minutes

We have spent today becoming stronger at solving multi-part money word problems!  You are going to show me what you know on an exit ticket

As students work, I circulate and observe student strategies (I do not help students during the exit ticket since I want my students to show me their current level of understanding of these skills).

I review and correct the exit ticket with students at the end of class so that they can get immediate feedback on their work.