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* Calculating with Candy *. Curriculum for teaching Addition, Subtraction, and Estimation Caitlin Buzzell and Dena Raffa. Curriculum Context:. 1 st Grade Classroom (lessons and activities are easily adjustable for wide range of learning levels of children) Hartford Public Elementary School

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## * Calculating with Candy *

Curriculum for teaching Addition, Subtraction, and Estimation

Caitlin Buzzell and Dena Raffa

### Curriculum Context:

• 1st Grade Classroom (lessons and activities are easily adjustable for wide range of learning levels of children)

• Hartford Public Elementary School

• Time Frame: 2 hours a day for about 6 days.

### Objectives:

• Work individually, with peers and with more mature learners.

• Students will be able to apply each area of math to real life situations.

• Blooms Taxonomy Students will spend time on the understanding (describe, identify), application (interpret, solve, write), and synthesis (formulate, organize, write) stage.

### Objectives: (from CT Framework)

• Students will be able to “use models and pictures to demonstrate understanding of equivalent forms of numbers .”

• “Students will add, subtract with whole numbers, estimation and develop strategies for selecting the appropriate computational and operational methods for solving problems.”

• “Students will use #’s to count, compare, order and use a variety of numerical representations to present, interpret, communicate and connect various kinds of numerical information.”

• Simple 1 digit addition worksheet to start of the unit

• M&M Candy Activity (Individual):

• Distribute packages of M&M’s and ask students to…

• Count how many are in there cup.

• Arrange by similar colors.

• Count how many in each group then place in a line accordingly from least to most.

M&M activity continued (Group):

• Write on paper the addition sentence that represents your partner’s # plus your # and the total they equal together.

• Rearrange them by their color.

• Recount them and put into new line accordingly from least to most.

End unit with a 2 digit complex addition worksheet.

### Subtraction (Day 3&4):

• Begin with easy worksheet.

• Jellybean activity.

• End with a more complex worksheet.

### Subtraction (Day 3&4):

Jellybean activity (Groups of 4):

• Hand out 25 jellybeans to each group.

• Pair up within the group.

• One partner will remove certain amount from pile

• Partner will write down sentence in word form the equation that just took place.

### Testing (Day 5):

• Worksheet with 100 addition & subtraction problems

• Receive a worksheet of 100 problems and compete with classmates to see how many they can accurately complete in a two minute period.

• Around the World game

• Students compete with one another to see who can correctly answer the problem on the flash card

• ### Estimation (Day 6):

• Give brief lesson on estimation:

• Define estimation

• Show examples

• Take questions

• Gumdrop activity:

• Place children in groups of 4 or 5.

• Have 10 jars at each table full of gumdrops in increments of 5

(5, 10, 15, 20, 25)

• Have children analyze and estimate how many are in each jar.

• Then have them arrange in a line accordingly from least to most.