Mathematics 3

# Web Quests

## CHAPTER 4

Students will be using a weekly calendar to plan events that are part of their daily lives. The task requires the students to ensure that a specified total number of minutes are scheduled throughout the week for homework, chores and other activities. Encourage them to schedule time for other events in which they participate. Students will use calendars available online for downloading or a one-week calendar that is available in an attached file.

As students are creating their schedules, they are practicing addition and subtraction in order to ensure that their schedule has the required minutes for each activity.

### GOALS

•    Estimate sums and differences.

•    Add and subtract two-digit numbers.

•    Use mental math to add and subtract.

### MEETING INDIVIDUAL NEEDS

•  Students who need a challenge can download a one-month calendar and schedule the required number of minutes in a different way each week.

•  Students who have some difficulty could be asked to schedule only one of the events (e.g. homework for each day).

•  Total number of minutes can be changed to meet the needs of individual students, making the task easier or more difficult.

### INSTRUCTIONAL SEQUENCE

1. Discuss with the students different ways to keep a schedule. Have them look at examples of timetables, calendars, day-timers, and so on. If one is available, show the students an electronic day-timer and discuss how people use them to keep track of activities, appointments, etc...
2. Have students plan their schedules for each day of the week. Remind students that the scheduled times are different on the weekend.
3. Have students choose a calendar and enter their schedules.

Key questions to ask while students work:

"Do the times sum to the correct total?"

"If you add up the times you have planned for 4 days, how can you calculate how many minutes are left for the 5 th day?"

"Is there another way you could use the minutes during the week?

"How would you change the minutes if you did not want to do homework on Friday evening?"

### RESOURCES

Websites:

File:

One-week calendar

### ASSESSMENT

 Level 1 Level 2 Level 3 Level 4 Problem Solving and Understanding •    Needs assistance to understand the problem. •  Demonstrates an understanding of parts of the problem. •    Demonstrates a complete understanding of the problem. •    In-depth understanding of the problem. Make a plan •    Does not use an appropriate strategy. •    Carries out a strategy to some extent. •    Shows evidence of an appropriate plan. •    Shows evidence of a thorough plan. Implements a plan •    Does not arrive at correct solution. •    Develops a partial or incorrect solution. •    Implements it to find a correct solution. •    Implements it effectively to find a complete solution or several solutions. Procedures Adding and subtracting •    Major errors in addition and subtraction. •    Several errors in estimating, addition and subtraction. •    Few errors in estimating, addition and subtraction. •    Almost no errors in estimating, addition and subtraction.