Developing Strategies for Whole-Number Computation:

Addition, Subtraction, Multiplication and Division

By: Megan Hanlon and Jacquie Honeycutt

Route 66 Road TripO Today we are going on a road trip down

Route 66. Route 66 – called the Mother Road was the first paved road to go across the country. It is over 2,000 miles long and goes through 8 states from Chicago, IL to Barstow, CA. Our class is going to take a tour down the mother road and learn some new math concepts along the way. Lets watch this video to get started:

http://www.youtube.com/watch?v=ggtH05LFF3k

Standards: Addition and Subtraction

3rd Grade:O SPI 0306.2.9 Solve contextual

problems involving the addition (with and without regrouping) and subtraction (with and without regrouping) of two- and three digit whole numbers

Standards: Multiplication and Division

3rd grade:O SPI 0306.2.5 Identify various

representations of multiplication and division.

Renting CarsO Before we begin our road trip, we

need to rent some cars. The car rental place only has 5 cars. There are 20 students in our class. How many students will need to ride in each car?

How much gas do we need?

O Next, we need to put gas in our cars. If each car hold 27 gallons of gas and we already have 11 gallons in each car, how many more gallons of gas do we need to put in each car?

Lunch at the Polk-a-Dot Diner

O Just like Annie mouse, we are going to eat lunch at the Polk-a-Dot Diner. We can spend a total of $114.00 dollars at the diner. When we finish lunch, our bill came to a total of $89.00 dollars. How much money do we have left over?

Bill Shea's Route 66 Gas Station Museum

O We stop in Springfield to visit Bill Shea’s gas station museum. In the souvenir store, Amy spends a total of $56.00 dollars and Pat spends a total of $ 31.00 dollars. How much money did Amy and Pat spend together?

What are we doing class?Addition and subtraction

O SPI 0306.2.9 Solve contextual problems involving the addition (with and without regrouping) and subtraction (with and without regrouping) of two- and three digit whole numbers

Multiplication and divisionO SPI 0306.2.5 Identify various representations

of multiplication and division.

Miles TraveledO Leah wants to know how many miles

we have traveled since we left Chicago. We drove 517 miles to get from Chicago to Springfield. We drove 271 miles to get from Springfield to Oklahoma City. We drove 266 miles to get from Oklahoma City to Amarillo. How many total miles have we traveled?

Picture time!O Lets have our picture taken with the

totem pole. Only three people can be in the picture at once. How many pictures do we need to take so everyone can have their picture taken?

Cadillac RanchO Let’s paint at Cadillac Ranch! Each

student will need 2 cans of paint. How many cans of paint will we have total?

Burro RidesO Oh, friends, we are almost to the end

of our trip! But, did you see those burros?? We have a little problem. Timmy wants to ride the burros. If only 2 of us can ride on a burro, how many of those burros do we need to lasso for a ride? Who can show us how to figure this out?

We did it!We made it to California! Great job

everyone!

Virtual ManipulativeO Addition and Subtraction

O Deep Sea Duelhttp://illuminations.nctm.org/ActivityDetail.aspx?ID=207

O Pan Balance-Numbershttp://illuminations.nctm.org/ActivityDetail.aspx?ID=26

Virtual ManipulativeMultiplication and Division

O Rectangle Multiplicationhttp://nlvm.usu.edu/en/nav frames_asid_192_g_2_t_1.html?from=category_g_2_t_1.html

Coloring Pascal’s Trianglehttp://www.shodor.org/interactivate/activities/ColoringRemainder/