Mathematics Lesson Plan: Word Problems 5th Grade Two (50) minute class periods I. Rationale: This lesson is important because students need to understand that math is everywhere. Eventually they will have to solve a math problem in the “real world.” It is beneficial for them to know that math has real life applications. Geologists, as well as other various experts, make these types of calculations every day. II. Goals: • To learn about word problems and how to solve them. III. Objectives: • Students will be able to solve single-and multi-step word problems. • Students will be able to identify real life applications of math. IV. QCC's [22] Topic: Word Problems Standard: Identifies needed information and selects the steps necessary to solve multi-step word problems. Fifth Grade National Standards: 5.1 Communicating about Mathematics Using Games Mathematical games can foster mathematical communication as students explain and justify their moves to one another. In addition, games can motivate students and engage them in thinking about and applying concepts and skills. The first part of this example, Playing Fraction Tracks, contains an interactive version of a game (based on the work of Akers, Tierney, Evans, and Murray 1998) that can be used in the grades 3–5 classroom to support students' learning about fractions. By working on this activity, students have opportunities to think about how fractions are related to a unit whole, compare fractional parts of a whole, and find equivalent fractions, as discussed in the Number and Operations Standard. In the second part, The Role of the Teacher, two video clips illustrate communication about mathematics among a teacher and her students. The third part, Communication among Students, shows how activities like this allow students to use communication as a tool to deepen their understanding of mathematics, as described in the Communication Standard. In the fourth part, Reflecting on Practice, the teacher reflects on her own mathematical learning that occurs as a result of using activities like this game with her 5th-grade students. 5.2 Understanding Distance, Speed, and Time Relationships Using Simulation Software This example includes a software simulation of two runners along a track. Students can control the speeds and starting points of the runners, watch the race, and examine a graph of the timeversus-distance relationship. The computer simulation uses a context familiar to students, and the technology allows them to analyze the relationships more deeply because of the ease of manipulating the environment and observing the changes that occur. Activities like these can help students in the upper elementary grades understand ideas about functions and about representing change over time, as described in the Algebra Standard. 5.3 Exploring Properties of Rectangles and Parallelograms Using Dynamic Software Dynamic geometry software provides an environment in which students can explore geometric relationships and make and test conjectures. In this example, properties of rectangles and parallelograms are examined. The emphasis is on identifying what distinguishes a rectangle from a more general parallelogram. Such tasks and the software can help teachers address the Geometry Standard. 5.4 Accessing and Investigating Data Using the World Wide Web Data sets available on the Internet are valuable resources for studying real data to address questions that interest students. Teachers and students can download data sets from the World Wide Web, collaborate in online data-collection projects, and search electronic libraries and data files. This example describes activities in which students can use census data available on the Web to examine questions about population. Working on such activities, students can also formulate their own questions and use the mathematics they are studying to address these questions. They can propose and justify conclusions that are based on data and design further studies on the basis of conclusions or predictions, as described in the Data Analysis and Probability Standard. 5.5 Collecting, Representing, and Interpreting Data Using Spreadsheets and Graphing Software Spreadsheets and graphing software are tools for organizing, representing, and comparing data. This activity illustrates how weather data can be collected and examined using these tools. In the first part, Collecting and Examining Weather Data, students organize and then examine data that has been collected over a period of time in a spreadsheet. In the second part, Representing and Interpreting Data, students use the graphing functions of a spreadsheet to help them interpret data. Working on activities like these, students learn to set up a simple spreadsheet and use it in posing and solving problems, examining data, and investigating patterns, as described in the Representation Standard. V. Content • The Continental Plates move at only ½ to 4 inches (1.3 to 10 centimeters) per year!! This does not seem like much, but over millions of years it adds up to great distances of movement. •Various word problems VI. Materials: •Transparencies VII. Procedures: 1. Anticipatory Set: Begin the lesson by asking the students if they can name any examples of how math is used in the real world. 2. Activate the students' prior knowledge about geology by asking them what they know about geologists and what they do. Have students give some examples of ways geologists use mathematics and word problems. 3. Teacher gives students a basic word problem to solve on the overhead: A geologist is observing two tectonic plates. One of the plates IS NOT MOVING! The other plate is sliding past it at the rate of 1 inch per year. In 25 years, how much has the plate moved? 4. After the students solve this problem, gradually give them more difficult problems. Here are a couple of problems that are equivalent to the ones that would be used. Sample problems: If two plates are moving apart at 2.5 inches per year, how far will the plates be separated in six years? (note: remember that BOTH plates are moving. Don’t forget that when making calculations.) The cities Los Pates and Barrowtown are right next to each other in California. The problem is that they are different tectonic plates. The plates that they are sitting on are sliding past one another at the rate of 6 centimeters each year (total). How many years will it take for the cities to be 60 km apart? 6. Teacher guides students through some practice problems. 7. Students practice problems independently. 8. Students are broken up into groups of 2. 9. Teacher gives each group a word problem to solve to see if they have mastered the material. Word problem for each pair of students: Santa Pisa and Santa Maria are two towns that are separated by a fault line. If the plate Santa Pisa is on moves at a rate of 5.5 centimeters per year and Santa Maria’s plate moves in the opposite direction at the rate of 6.5 centimeters per year, how far will the towns be from each other in 10 years? (Note: You can use calculators. If your final answer makes more sense in kilometers, convert it!) 5. Closure: Teacher takes students to the math lab to play on the “math playground.” (This site has lots of word problems ranging from very basic math to multi-step word problems.) • http://www.mathplayground.com/DoTheMath.html • http://www.mathplayground.com/GSMbegin.html VIII. Evaluation: Formal: Each group will turn in their final problem for a daily grade. Informal: Student observation during independent practice.