Unit Topic or Theme: Money

Grade: 3

Massachusetts Frameworks:

2.NBT.B.6 Add up to four two-digit numbers using strategies base on place value and properties of operations.

Lesson Topic or Theme: Adding Costs of Objects and Working with Money

• Lesson Objectives: The students would be able to add up the cost of given objects and using money to buy the objects.
• Instructional Technique: demonstration, group work, individual work.
• Instructional Materials: https://www.mathplayground.com/candy_cashier.html
• Website handout (worksheet #1), Prices worksheet (worksheet #2) play money, Assessment worksheet (worksheet #3)
• Theoretical Perspective: As second graders, students will be practicing the skill of addition by working with prices of different values and will also practice using money to help them in the future.
• Procedure: The teacher will introduce to the students how to add up prices of objects and how to be able to pay for them. Students will be working together and individually to practice the skill of adding and using money.

A. Introductory Activity: Each table will be provided sheet of paper with pictures of objects and prices of each object. They will also be given play money. Working in groups, the students will be looking at each price of the object and will use the play money to match the corresponding value.

B. Step-by-step:

1. Students will be working in groups of two to play an online math game called, Candy Cashier. Each group will be handed a handout that will serve as a guide to help them use the site.

2. The game is about monsters coming to a candy store. The game provides a chart of the prices of the different types of candy in the store. The players work as the cashiers of the store.

3. Students will be finding out the total of the price of the candy that each monster will be buying. Then, they will be finding out what coins and how many coins the monster will be using to pay for the total amount.

4. As the students are playing the game, they will have worksheets (ws #3) where they will draw circles that represent each candy bought and inside the circles they will write down the price of each candy. There is space provided in the worksheet where they can write down addition problems.  They will also write down what coins they will be using and how many of each coin.

C. Closure

After playing the game, students will be using play money once again. The partners will individually quiz one another. The first partner will give the other partner a price amount. (A price less than one dollar). The other partner will use the play money to make that amount.

D. Adaptations for different learners: Allow students to use calculators if struggling with addition to check their answers. Can give out a money chart that represents what value each coin represents (nickel= five cents). Provide a number chart.

E. Homework: Bring in their favorite toy to class and come up with the price for the toy. Will do a morning meeting activity the next day to come up with that coin combination they can use for each toy.

• Evaluation:

A. How/ when will you determine if you have met your objectives?

·         Students will successfully be solving addition problems throughout the lesson.

-By checking students’ work, I will be able to assess if students have mastered the skill of addition through reviewing the assessment worksheets). If they got answers wrong, I will see what common mistakes are present in the class.

·         Students will demonstrate their knowledge of the values of coins.

-I will be able to see how well each student knows how to use coins, by walking around the room and observing. I will also be able to assess them through the worksheets that showed how many coins they used to get to the correct price of the total amount of candy.

B. Concerns or questions you have about teaching this lesson?

Concerned that it may be difficult to effectively measure individual students’ knowledge because they are working in partners.

Worksheet #1

Candy Cashier

Directions:

1.)    Go on  https://www.mathplayground.com/candy_cashier.html

2.)    Click on “NEW” to the left of the title, “Candy Cashier”.

3.)    Click on “1” to be on Level 1 of the game.

4.)     Add up the cost of the candy and enter the total using the cash register keys. Check your work by pressing the green check button on the register.

5.)    The monster's money is on the counter. Select the coins and bills you would like to use. They will appear on the cash register and the Paid amount will change. Check your work. On some levels, you must pay the exact amount.

6.)    If you paid the exact amount, you are done and can move to the next level. If you need to make change, the cash register drawer will open. Select the coins you want. They will appear on the counter and the Paid amount will change. Check your work.

Worksheet #2

                              0.99 cents

                              0.32 cents

                              0.50 cents

                              0.75 cents

Worksheet #3

Name: ______________________________            Date: _________________________

Directions: For each monster customer, draw the candy that they are buying and write down the price for each candy. Then write down the addition problem that you will be solving. Write down how many quarters, dimes, nickels, and pennies you will use for each purchase. (Write “0” if not using a particular coin).

1.)    Candy:

Addition equation:

Quarters: ___ Dimes: ____ Nickels: ___ Pennies:  ___

2.)    Candy:

Addition equation:

Quarters: ___ Dimes: ____ Nickels: ___ Pennies:  ___

3.)    Candy:

Addition equation:

Quarters: ___ Dimes: ____ Nickels: ___ Pennies:  ___

4.)    Candy:

Addition equation:

Quarters: ___ Dimes: ____ Nickels: ___ Pennies:  ___

5.)    Candy:

Addition equation:

Quarters: ___ Dimes: ____ Nickels: ___ Pennies:  ___

6.)    Candy:

Addition equation:

Quarters: ___ Dimes: ____ Nickels: ___ Pennies:  ___